src/llvm-project/llvm/test/CodeGen/AMDGPU/GlobalISel/postlegalizer-combiner-reassoc.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 3
# RUN: llc -march=amdgcn -run-pass=amdgpu-postlegalizer-combiner -verify-machineinstrs -o - %s | FileCheck %s

---
name: test_reassoc_infinite_loop
legalized: true
tracksRegLiveness: true
body:             |
  bb.1:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4

    ; CHECK-LABEL: name: test_reassoc_infinite_loop
    ; CHECK: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
    ; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
    ; CHECK-NEXT: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[COPY]], [[C]]
    ; CHECK-NEXT: $vgpr0 = COPY [[ADD]](s32)
    ; CHECK-NEXT: SI_RETURN implicit $vgpr0
    %0:_(s32) = COPY $vgpr0
    %1:_(s32) = G_CONSTANT i32 0
    %2:_(s32) = G_CONSTANT i32 1
    %3:_(s1) = G_ICMP intpred(eq), %1(s32), %1
    %4:_(s32) = G_SELECT %3(s1), %2, %1
    %5:_(s32) = COPY %4(s32)
    %6:_(s32) = G_ADD %0, %5
    %7:_(s32) = G_ADD %6, %2
    $vgpr0 = COPY %7(s32)
    SI_RETURN implicit $vgpr0
...