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llvm-project/llvm/test/CodeGen/AArch64/machine-copy-remove.mir

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[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
# RUN: llc -mtriple=aarch64--linux-gnu -run-pass=aarch64-copyelim %s -verify-machineinstrs -o - | FileCheck %s
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
---
# Check that bb.0 COPY is seen through to allow the bb.1 COPY of XZR to be removed.
# CHECK-LABEL: name: test1
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK-NOT: COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
name: test1
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = COPY $x1
CBNZX $x1, %bb.2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
B %bb.3
bb.2:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = LDRXui $x1, 0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.3:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
RET_ReallyLR implicit $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
...
# Similar to test1, but with reversed COPY.
# CHECK-LABEL: name: test2
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK-NOT: COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
name: test2
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x1 = COPY $x0
CBNZX $x1, %bb.2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
B %bb.3
bb.2:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = LDRXui $x1, 0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.3:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
RET_ReallyLR implicit $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
...
# Similar to test1, but with a clobber that prevents removal of the XZR COPY.
# CHECK-LABEL: name: test3
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
name: test3
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1, $x2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = COPY $x1
$x1 = LDRXui $x1, 0
CBNZX $x1, %bb.2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
B %bb.3
bb.2:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = LDRXui $x1, 0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.3:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
RET_ReallyLR implicit $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
...
# Similar to test2, but with a clobber that prevents removal of the XZR COPY.
# CHECK-LABEL: name: test4
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
name: test4
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1, $x2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x1 = COPY $x0
$x1 = LDRXui $x1, 0
CBNZX $x1, %bb.2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
B %bb.3
bb.2:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = LDRXui $x1, 0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.3:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
RET_ReallyLR implicit $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
...
# Similar to test2, but with a clobber that prevents removal of the XZR COPY.
# CHECK-LABEL: name: test5
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
name: test5
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1, $x2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x1 = COPY $x0
$x0 = LDRXui $x1, 0
CBNZX $x1, %bb.2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
B %bb.3
bb.2:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = LDRXui $x1, 0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.3:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
RET_ReallyLR implicit $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
...
# Similar to test1, but with two levels of COPYs.
# CHECK-LABEL: name: test6
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK-NOT: COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
name: test6
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1, $x2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x2 = COPY $x0
$x1 = COPY $x2
CBNZX $x1, %bb.2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
B %bb.3
bb.2:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = LDRXui $x1, 0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.3:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
RET_ReallyLR implicit $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
...
# Similar to test1, but with two levels of COPYs and a clobber preventing COPY of XZR removal.
# CHECK-LABEL: name: test7
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
name: test7
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1, $x2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x2 = COPY $x0
$x0 = LDRXui $x1, 0
$x1 = COPY $x2
CBNZX $x1, %bb.2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
B %bb.3
bb.2:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = LDRXui $x1, 0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.3:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
RET_ReallyLR implicit $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
...
# Check that the TargetRegs vector clobber update loop in
# AArch64RedundantCopyElimination::optimizeCopy works correctly.
# CHECK-LABEL: name: test8
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: x0 = COPY $xzr
# CHECK: x1 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
name: test8
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x1 = COPY $x0
CBNZX $x1, %bb.2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0, $x1 = LDPXi $x2, 0
$x0 = COPY $xzr
$x1 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
B %bb.3
bb.2:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = LDRXui $x1, 0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.3:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
RET_ReallyLR implicit $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
...
# Check that copy isn't removed from a block with multiple predecessors.
# CHECK-LABEL: name: test9
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: x0 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
# CHECK-NEXT: B %bb.3
name: test9
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
CBNZX $x0, %bb.2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x2
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = COPY $xzr
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
B %bb.3
bb.2:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = LDRXui $x1, 0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
CBNZX $x1, %bb.1
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
bb.3:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
RET_ReallyLR implicit $x0
[AArch64] Extend AArch64RedundantCopyElimination to do simple copy propagation. Summary: Extend AArch64RedundantCopyElimination to catch cases where the register that is known to be zero is COPY'd in the predecessor block. Before this change, this pass would catch cases like: CBZW %W0, <BB#1> BB#1: %W0 = COPY %WZR // removed After this change, cases like the one below are also caught: %W0 = COPY %W1 CBZW %W1, <BB#1> BB#1: %W0 = COPY %WZR // removed This change results in a 4% increase in static copies removed by this pass when compiling the llvm test-suite. It also fixes regressions caused by doing post-RA copy propagation (a separate change to be put up for review shortly). Reviewers: junbuml, mcrosier, t.p.northover, qcolombet, MatzeB Subscribers: aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D30113 llvm-svn: 295863
2017-02-23 03:10:45 +08:00
...
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
# Eliminate redundant MOVi32imm 7 in bb.1
# Note: 32-bit compare/32-bit move imm
# Kill marker should be removed from compare.
# CHECK-LABEL: name: test10
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: SUBSWri $w0, 7, 0, implicit-def $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
# CHECK: bb.1:
# CHECK-NOT: MOVi32imm
name: test10
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $w0, $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $wzr = SUBSWri killed $w0, 7, 0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w0 = MOVi32imm 7
STRWui killed $w0, killed $x1, 0
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
bb.2:
RET_ReallyLR
...
# Eliminate redundant MOVi32imm 7 in bb.1
# Note: 64-bit compare/32-bit move imm w/implicit def
# Kill marker should be removed from compare.
# CHECK-LABEL: name: test11
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: SUBSXri $x0, 7, 0, implicit-def $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
# CHECK: bb.1:
# CHECK-NOT: MOVi32imm
name: test11
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $xzr = SUBSXri killed $x0, 7, 0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w0 = MOVi32imm 7, implicit-def $x0
STRXui killed $x0, killed $x1, 0
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
bb.2:
RET_ReallyLR
...
# Eliminate redundant MOVi32imm 7 in bb.1
# Note: 64-bit compare/32-bit move imm
# Kill marker should be removed from compare.
# CHECK-LABEL: name: test12
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: SUBSXri $x0, 7, 0, implicit-def $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
# CHECK: bb.1:
# CHECK-NOT: MOVi32imm
name: test12
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $xzr = SUBSXri killed $x0, 7, 0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w0 = MOVi32imm 7
STRWui killed $w0, killed $x1, 0
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
bb.2:
RET_ReallyLR
...
# Don't eliminate MOVi32imm 7 in bb.1 as we don't necessarily know the upper 32-bits.
# Note: 32-bit compare/32-bit move imm w/implicit def
# Kill marker should remain on compare.
# CHECK-LABEL: name: test13
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: SUBSWri killed $w0, 7, 0, implicit-def $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
# CHECK: bb.1:
# CHECK: MOVi32imm
name: test13
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $w0, $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $wzr = SUBSWri killed $w0, 7, 0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w0 = MOVi32imm 7, implicit-def $x0
STRXui killed $x0, killed $x1, 0
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
bb.2:
RET_ReallyLR
...
# We can't eliminate the MOVi32imm because of the clobbering LDRWui.
# CHECK-LABEL: name: test14
# CHECK: bb.1:
# CHECK: MOVi32imm
name: test14
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $w0, $x1, $x2
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $wzr = SUBSWri killed $w0, 7, 0, implicit-def $nzcv
$w0 = LDRWui $x1, 0
STRWui killed $w0, killed $x2, 0
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w0 = MOVi32imm 7
STRWui killed $w0, killed $x1, 0
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
bb.2:
RET_ReallyLR
...
# We can't eliminate the MOVi32imm because of the clobbering LDRWui.
# CHECK-LABEL: name: test15
# CHECK: bb.1:
# CHECK: MOVi32imm
name: test15
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $w0, $x1, $x2
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $wzr = SUBSWri killed $w0, 7, 0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1, $x2
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w0 = LDRWui $x1, 0
STRWui killed $w0, killed $x2, 0
$w0 = MOVi32imm 7
STRWui killed $w0, killed $x1, 0
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
bb.2:
RET_ReallyLR
...
# Check that bb.0 COPY is seen through to allow the bb.1 MOVi32imm to be removed.
# CHECK-LABEL: name: test16
# CHECK: bb.1:
# CHECK-NOT: MOVi32imm
name: test16
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $w0, $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $wzr = SUBSWri $w0, 7, 0, implicit-def $nzcv
$w2 = COPY $w0
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w2 = MOVi32imm 7
STRWui killed $w2, killed $x1, 0
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
bb.2:
RET_ReallyLR
...
# Check that bb.1 MOVi32imm is not removed due to self clobbering compare.
# CHECK-LABEL: name: test17
# CHECK: bb.1:
# CHECK: MOVi32imm
name: test17
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $w0, $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $w0 = SUBSWri killed $w0, 7, 0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w0 = MOVi32imm 7
STRWui killed $w0, killed $x1, 0
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
bb.2:
RET_ReallyLR
...
# Make sure the MOVi64imm is not removed. In one version of this patch the
# MOVi64imm immediate was truncated to 32 bits and incorrectly matched because
# the low 32 bits of 4252017623040 are all zero.
# CHECK-LABEL: name: test18
# CHECK: bb.1:
# CHECK: MOVi64imm
name: test18
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
CBNZX killed $x0, %bb.2
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = MOVi64imm 4252017623040
STRXui killed $x0, killed $x1, 0
[AArch64] Extend redundant copy elimination pass to handle non-zero stores. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle non-zero cases such as: BB#0: cmp x0, #1 b.eq .LBB0_1 .LBB0_1: orr x0, xzr, #0x1 ; <-- redundant copy; x0 known to hold #1. Differential Revision: https://reviews.llvm.org/D29344 llvm-svn: 296809
2017-03-03 04:48:11 +08:00
bb.2:
RET_ReallyLR
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
...
# Eliminate redundant MOVi32imm -1 in bb.1
# Note: 32-bit compare/32-bit move imm
# Kill marker should be removed from compare.
# CHECK-LABEL: name: test19
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: ADDSWri $w0, 1, 0, implicit-def $nzcv
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
# CHECK: bb.1:
# CHECK-NOT: MOVi32imm
name: test19
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $w0, $x1
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $wzr = ADDSWri killed $w0, 1, 0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w0 = MOVi32imm -1
STRWui killed $w0, killed $x1, 0
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
bb.2:
RET_ReallyLR
...
# Eliminate redundant MOVi64imm -1 in bb.1
# Note: 64-bit compare/64-bit move imm
# Kill marker should be removed from compare.
# CHECK-LABEL: name: test20
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: ADDSXri $x0, 1, 0, implicit-def $nzcv
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
# CHECK: bb.1:
# CHECK-NOT: MOVi64imm
name: test20
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $xzr = ADDSXri killed $x0, 1, 0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = MOVi64imm -1
STRXui killed $x0, killed $x1, 0
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
bb.2:
RET_ReallyLR
...
# Eliminate redundant MOVi32imm -1 in bb.1
# Note: 64-bit compare/32-bit move imm
# Kill marker should be removed from compare.
# CHECK-LABEL: name: test21
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: ADDSXri $x0, 1, 0, implicit-def $nzcv
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
# CHECK: bb.1:
# CHECK-NOT: MOVi32imm
name: test21
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x0, $x1
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $xzr = ADDSXri killed $x0, 1, 0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w0 = MOVi32imm -1
STRWui killed $w0, killed $x1, 0
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
bb.2:
RET_ReallyLR
...
# Don't eliminate MOVi64imm -1 in bb.1 as we don't necessarily know the upper 32-bits.
# Note: 32-bit compare/64-bit move imm
# CHECK-LABEL: name: test22
# CHECK: bb.1:
# CHECK: MOVi64imm
name: test22
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $w0, $x1
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $wzr = ADDSWri killed $w0, 1, 0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$x0 = MOVi64imm -1
STRXui killed $x0, killed $x1, 0
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
bb.2:
RET_ReallyLR
...
# Eliminate redundant MOVi32imm 4096 in bb.1 when the compare has a shifted immediate.
# CHECK-LABEL: name: test23
# CHECK: bb.1:
# CHECK-NOT: MOVi32imm
name: test23
tracksRegLiveness: true
body: |
bb.0.entry:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $w0, $x1
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
dead $wzr = SUBSWri killed $w0, 1, 12, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
B %bb.1
bb.1:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
liveins: $x1
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$w0 = MOVi32imm 4096
STRWui killed $w0, killed $x1, 0
[AArch64][Redundant Copy Elim] Add support for CMN and shifted imm. This patch extends the current functionality of the AArch64 redundant copy elimination pass to handle CMN instructions as well as a shifted immediates. Differential Revision: https://reviews.llvm.org/D30576. llvm-svn: 297078
2017-03-07 05:20:00 +08:00
bb.2:
RET_ReallyLR