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

# RUN: llc -mtriple=x86_64-linux-gnu -global-isel -run-pass=legalizer %s -o - | FileCheck %s

--- |
  define i32 @test_cmp_i8(i8 %a, i8 %b) {
    %r = icmp ult i8 %a, %b
    %res = zext i1 %r to i32
    ret i32 %res
  }

  define i32 @test_cmp_i16(i16 %a, i16 %b) {
    %r = icmp ult i16 %a, %b
    %res = zext i1 %r to i32
    ret i32 %res
  }

  define i32 @test_cmp_i32(i32 %a, i32 %b) {
    %r = icmp ult i32 %a, %b
    %res = zext i1 %r to i32
    ret i32 %res
  }

  define i32 @test_cmp_i64(i64 %a, i64 %b) {
    %r = icmp ult i64 %a, %b
    %res = zext i1 %r to i32
    ret i32 %res
  }

  define i32 @test_cmp_p0(i32* %a, i32* %b) {
    %r = icmp ult i32* %a, %b
    %res = zext i1 %r to i32
    ret i32 %res
  }

...
---
name:            test_cmp_i8
# CHECK-LABEL: name:  test_cmp_i8
alignment:       4
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
# CHECK:          %0(s8) = COPY %edi
# CHECK-NEXT:     %1(s8) = COPY %esi
# CHECK-NEXT:     %2(s1) = G_ICMP intpred(ult), %0(s8), %1
# CHECK-NEXT:     %3(s32) = G_ZEXT %2(s1)
# CHECK-NEXT:     %eax = COPY %3(s32)
# CHECK-NEXT:     RET 0, implicit %eax
body:             |
  bb.1 (%ir-block.0):
    liveins: %edi, %esi

    %0(s8) = COPY %edi
    %1(s8) = COPY %esi
    %2(s1) = G_ICMP intpred(ult), %0(s8), %1
    %3(s32) = G_ZEXT %2(s1)
    %eax = COPY %3(s32)
    RET 0, implicit %eax

...
---
name:            test_cmp_i16
# CHECK-LABEL: name:  test_cmp_i16
alignment:       4
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
# CHECK:          %0(s16) = COPY %edi
# CHECK-NEXT:     %1(s16) = COPY %esi
# CHECK-NEXT:     %2(s1) = G_ICMP intpred(ult), %0(s16), %1
# CHECK-NEXT:     %3(s32) = G_ZEXT %2(s1)
# CHECK-NEXT:     %eax = COPY %3(s32)
# CHECK-NEXT:     RET 0, implicit %eax
body:             |
  bb.1 (%ir-block.0):
    liveins: %edi, %esi

    %0(s16) = COPY %edi
    %1(s16) = COPY %esi
    %2(s1) = G_ICMP intpred(ult), %0(s16), %1
    %3(s32) = G_ZEXT %2(s1)
    %eax = COPY %3(s32)
    RET 0, implicit %eax

...
---
name:            test_cmp_i32
# CHECK-LABEL: name:  test_cmp_i32
alignment:       4
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
# CHECK:          %0(s32) = COPY %edi
# CHECK-NEXT:     %1(s32) = COPY %esi
# CHECK-NEXT:     %2(s1) = G_ICMP intpred(ult), %0(s32), %1
# CHECK-NEXT:     %3(s32) = G_ZEXT %2(s1)
# CHECK-NEXT:     %eax = COPY %3(s32)
# CHECK-NEXT:     RET 0, implicit %eax
body:             |
  bb.1 (%ir-block.0):
    liveins: %edi, %esi

    %0(s32) = COPY %edi
    %1(s32) = COPY %esi
    %2(s1) = G_ICMP intpred(ult), %0(s32), %1
    %3(s32) = G_ZEXT %2(s1)
    %eax = COPY %3(s32)
    RET 0, implicit %eax

...
---
name:            test_cmp_i64
# CHECK-LABEL: name:  test_cmp_i64
alignment:       4
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
# CHECK:          %0(s64) = COPY %rdi
# CHECK-NEXT:     %1(s64) = COPY %rsi
# CHECK-NEXT:     %2(s1) = G_ICMP intpred(ult), %0(s64), %1
# CHECK-NEXT:     %3(s32) = G_ZEXT %2(s1)
# CHECK-NEXT:     %eax = COPY %3(s32)
# CHECK-NEXT:     RET 0, implicit %eax
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi, %rsi

    %0(s64) = COPY %rdi
    %1(s64) = COPY %rsi
    %2(s1) = G_ICMP intpred(ult), %0(s64), %1
    %3(s32) = G_ZEXT %2(s1)
    %eax = COPY %3(s32)
    RET 0, implicit %eax

...
---
name:            test_cmp_p0
# CHECK-LABEL: name:  test_cmp_p0
alignment:       4
legalized:       false
regBankSelected: false
registers:
  - { id: 0, class: _ }
  - { id: 1, class: _ }
  - { id: 2, class: _ }
  - { id: 3, class: _ }
# CHECK:          %0(p0) = COPY %rdi
# CHECK-NEXT:     %1(p0) = COPY %rsi
# CHECK-NEXT:     %2(s1) = G_ICMP intpred(ult), %0(p0), %1
# CHECK-NEXT:     %3(s32) = G_ZEXT %2(s1)
# CHECK-NEXT:     %eax = COPY %3(s32)
# CHECK-NEXT:     RET 0, implicit %eax
body:             |
  bb.1 (%ir-block.0):
    liveins: %rdi, %rsi

    %0(p0) = COPY %rdi
    %1(p0) = COPY %rsi
    %2(s1) = G_ICMP intpred(ult), %0(p0), %1
    %3(s32) = G_ZEXT %2(s1)
    %eax = COPY %3(s32)
    RET 0, implicit %eax

...