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llvm-project/llvm/test/CodeGen/ARM/machine-copyprop.mir

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MachineCopyPropagation: Respect implicit operands of COPY The code missed to check implicit operands of COPY instructions for defs/uses. Differential Revision: https://reviews.llvm.org/D29522 llvm-svn: 294088
2017-02-04 10:27:20 +08:00
# RUN: llc -o - %s -mtriple=armv7s-- -run-pass=machine-cp | FileCheck %s
---
# Test that machine copy prop recognizes the implicit-def operands on a COPY
# as clobbering the register.
# CHECK-LABEL: name: func
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: $d2 = VMOVv2i32 2, 14, $noreg
# CHECK: $s5 = COPY $s0, implicit $q1, implicit-def $q1
# CHECK: VST1q32 $r0, 0, $q1, 14, $noreg
MachineCopyPropagation: Respect implicit operands of COPY The code missed to check implicit operands of COPY instructions for defs/uses. Differential Revision: https://reviews.llvm.org/D29522 llvm-svn: 294088
2017-02-04 10:27:20 +08:00
# The following two COPYs must not be removed
Followup on Proposal to move MIR physical register namespace to '$' 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: $s4 = COPY $s20, implicit-def $q1
# CHECK: $s5 = COPY $s0, implicit killed $d0, implicit $q1, implicit-def $q1
# CHECK: VST1q32 $r2, 0, $q1, 14, $noreg
MachineCopyPropagation: Respect implicit operands of COPY The code missed to check implicit operands of COPY instructions for defs/uses. Differential Revision: https://reviews.llvm.org/D29522 llvm-svn: 294088
2017-02-04 10:27:20 +08:00
name: func
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' 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
$d2 = VMOVv2i32 2, 14, $noreg
$s5 = COPY $s0, implicit $q1, implicit-def $q1
VST1q32 $r0, 0, $q1, 14, $noreg
$s4 = COPY $s20, implicit-def $q1
$s5 = COPY $s0, implicit killed $d0, implicit $q1, implicit-def $q1
VST1q32 $r2, 0, $q1, 14, $noreg
MachineCopyPropagation: Respect implicit operands of COPY The code missed to check implicit operands of COPY instructions for defs/uses. Differential Revision: https://reviews.llvm.org/D29522 llvm-svn: 294088
2017-02-04 10:27:20 +08:00
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