llvm-project/llvm/test/CodeGen/X86/GlobalISel/legalize-brcond.mir

# RUN: llc -mtriple=x86_64-linux-gnu -global-isel -run-pass=legalizer %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=X64
# RUN: llc -mtriple=i386-linux-gnu   -global-isel -run-pass=legalizer %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=X32

--- |

  define i32 @test(i32 %a) {
  entry:
    %cmp = trunc i32 %a to i1
    br i1 %cmp, label %if.then, label %if.else

  if.then:                                          ; preds = %entry
    ret i32 0

  if.else:                                          ; preds = %entry
    ret i32 1
  }
...
---
name:            test
# ALL-LABEL: name:  test
alignment:       4
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _, preferred-register: '' }
  - { id: 1, class: _, preferred-register: '' }
  - { id: 2, class: _, preferred-register: '' }
  - { id: 3, class: _, preferred-register: '' }
# ALL:         %1:_(s1) = G_TRUNC %0(s32)
# ALL-NEXT:    G_BRCOND %1(s1), %[[TRUE:bb.[0-9]+.if.then]]
# ALL-NEXT:    G_BR %[[FALSE:bb.[0-9]+.if.else]]
# ALL:       [[TRUE]]:
# ALL-NEXT:    %eax = COPY %2(s32)
# ALL-NEXT:    RET 0, implicit %eax
# ALL:       [[FALSE]]:
# ALL-NEXT:    %eax = COPY %3(s32)
# ALL-NEXT:    RET 0, implicit %eax
body:             |
  bb.1.entry:
    successors: %bb.2.if.then(0x40000000), %bb.3.if.else(0x40000000)
    liveins: %edi

    %0(s32) = COPY %edi
    %2(s32) = G_CONSTANT i32 0
    %3(s32) = G_CONSTANT i32 1
    %1(s1) = G_TRUNC %0(s32)
    G_BRCOND %1(s1), %bb.2.if.then
    G_BR %bb.3.if.else

  bb.2.if.then:
    %eax = COPY %2(s32)
    RET 0, implicit %eax

  bb.3.if.else:
    %eax = COPY %3(s32)
    RET 0, implicit %eax

...