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llvm-project/llvm/test/CodeGen/Hexagon/mux-kill2.mir

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[Hexagon] Don't kill live registers when creating mux out of tfr The second part of r305300: when placing the mux at the later location, make sure that it won't use any register that was killed between the two original instructions. Remove any such kills and transfer them to the mux. llvm-svn: 305553
2017-06-16 20:24:03 +08:00
# RUN: llc -march=hexagon -run-pass hexagon-gen-mux -o - -verify-machineinstrs %s | FileCheck %s
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: $r1 = C2_muxri $p0, 123, $r0
# CHECK: $r2 = C2_muxir killed $p0, killed $r0, 321
[Hexagon] Don't kill live registers when creating mux out of tfr The second part of r305300: when placing the mux at the later location, make sure that it won't use any register that was killed between the two original instructions. Remove any such kills and transfer them to the mux. llvm-svn: 305553
2017-06-16 20:24:03 +08:00
---
name: fred
tracksRegLiveness: true
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' 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: $r0, $p0
[Hexagon] Don't kill live registers when creating mux out of tfr The second part of r305300: when placing the mux at the later location, make sure that it won't use any register that was killed between the two original instructions. Remove any such kills and transfer them to the mux. llvm-svn: 305553
2017-06-16 20:24:03 +08:00
Followup on Proposal to move MIR physical register namespace to '$' 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
$r2 = A2_tfrt $p0, $r0
$r1 = C2_cmoveit $p0, 123
$r1 = A2_tfrf $p0, killed $r0, implicit killed $r1
$r2 = C2_cmoveif killed $p0, 321, implicit killed $r2
[Hexagon] Don't kill live registers when creating mux out of tfr The second part of r305300: when placing the mux at the later location, make sure that it won't use any register that was killed between the two original instructions. Remove any such kills and transfer them to the mux. llvm-svn: 305553
2017-06-16 20:24:03 +08:00
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