File: machine-copyprop.mir

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llvm-toolchain-19 1%3A19.1.7-3~deb12u1
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# 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.
# The following two COPYs must not be removed
name: func
body: |
  bb.0:
    ; CHECK-LABEL: name: func
    ; CHECK: $d2 = VMOVv2i32 2, 14 /* CC::al */, $noreg
    ; CHECK: $s5 = COPY $s0, implicit $q1, implicit-def $q1
    ; CHECK: VST1q32 $r0, 0, $q1, 14 /* CC::al */, $noreg
    ; 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 /* CC::al */, $noreg
    $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
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