test/CodeGen/X86/GlobalISel/legalize-sub.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=x86_64-linux-gnu -run-pass=legalizer %s -o - | FileCheck %s

--- |

  define void @test_sub_i1() { ret void}

  define i32 @test_sub_i32(i32 %arg1, i32 %arg2) {
    %ret = sub i32 %arg1, %arg2
    ret i32 %ret
  }

...
---
name:            test_sub_i1
alignment:       4
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _, preferred-register: '' }
  - { id: 1, class: _, preferred-register: '' }
  - { id: 2, class: _, preferred-register: '' }
body:             |
  bb.1 (%ir-block.0):

    ; CHECK-LABEL: name: test_sub_i1
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $edx
    ; CHECK: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
    ; CHECK: [[SUB:%[0-9]+]]:_(s8) = G_SUB [[TRUNC]], [[TRUNC1]]
    ; CHECK: [[DEF:%[0-9]+]]:_(p0) = G_IMPLICIT_DEF
    ; CHECK: [[C:%[0-9]+]]:_(s8) = G_CONSTANT i8 1
    ; CHECK: [[COPY1:%[0-9]+]]:_(s8) = COPY [[SUB]](s8)
    ; CHECK: [[AND:%[0-9]+]]:_(s8) = G_AND [[COPY1]], [[C]]
    ; CHECK: G_STORE [[AND]](s8), [[DEF]](p0) :: (store 1)
    ; CHECK: RET 0
    %0(s32) = COPY $edx
    %1(s1) = G_TRUNC %0(s32)
    %2(s1) = G_SUB %1, %1
    %3:_(p0) = G_IMPLICIT_DEF
    G_STORE %2, %3 :: (store 1)
    RET 0
...
---
name:            test_sub_i32
alignment:       4
legalized:       false
regBankSelected: false
tracksRegLiveness: true
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
body:             |
  bb.1 (%ir-block.0):
    liveins: $edi, $esi

    ; CHECK-LABEL: name: test_sub_i32
    ; CHECK: liveins: $edi, $esi
    ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY $edi
    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY $esi
    ; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[COPY]], [[COPY1]]
    ; CHECK: $eax = COPY [[SUB]](s32)
    ; CHECK: RET 0, implicit $eax
    %0(s32) = COPY $edi
    %1(s32) = COPY $esi
    %2(s32) = G_SUB %0, %1
    $eax = COPY %2(s32)
    RET 0, implicit $eax

...