test/CodeGen/X86/GlobalISel/select-fdiv-scalar.mir

# RUN: llc -mtriple=x86_64-linux-gnu                                  -global-isel -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=NO_AVX512VL --check-prefix=NO_AVX512F --check-prefix=SSE
# RUN: llc -mtriple=x86_64-linux-gnu -mattr=+avx                      -global-isel -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=NO_AVX512VL --check-prefix=NO_AVX512F --check-prefix=AVX
# RUN: llc -mtriple=x86_64-linux-gnu -mattr=+avx512f                  -global-isel -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=NO_AVX512VL --check-prefix=AVX512ALL --check-prefix=AVX512F
# RUN: llc -mtriple=x86_64-linux-gnu -mattr=+avx512f -mattr=+avx512vl -global-isel -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=ALL --check-prefix=AVX512ALL --check-prefix=AVX512VL
--- |

  define float @test_fdiv_float(float %arg1, float %arg2) {
    %ret = fdiv float %arg1, %arg2
    ret float %ret
  }

  define double @test_fdiv_double(double %arg1, double %arg2) {
    %ret = fdiv double %arg1, %arg2
    ret double %ret
  }

...
---
name:            test_fdiv_float
# ALL-LABEL: name:  test_fdiv_float
alignment:       4
legalized:       true
regBankSelected: true
# NO_AVX512F:       registers:
# NO_AVX512F-NEXT:    - { id: 0, class: fr32, preferred-register: '' }
# NO_AVX512F-NEXT:    - { id: 1, class: fr32, preferred-register: '' }
# NO_AVX512F-NEXT:    - { id: 2, class: fr32, preferred-register: '' }
#
# AVX512ALL:        registers:
# AVX512ALL-NEXT:     - { id: 0, class: fr32x, preferred-register: '' }
# AVX512ALL-NEXT:     - { id: 1, class: fr32x, preferred-register: '' }
# AVX512ALL-NEXT:     - { id: 2, class: fr32x, preferred-register: '' }
registers:
  - { id: 0, class: vecr, preferred-register: '' }
  - { id: 1, class: vecr, preferred-register: '' }
  - { id: 2, class: vecr, preferred-register: '' }
liveins:
fixedStack:
stack:
constants:
# SSE:                  %0 = COPY %xmm0
# SSE-NEXT:             %1 = COPY %xmm1
# SSE-NEXT:             %2 = DIVSSrr %0, %1
# SSE-NEXT:             %xmm0 = COPY %2
# SSE-NEXT:             RET 0, implicit %xmm0
#
# AVX:                  %0 = COPY %xmm0
# AVX-NEXT:             %1 = COPY %xmm1
# AVX-NEXT:             %2 = VDIVSSrr %0, %1
# AVX-NEXT:             %xmm0 = COPY %2
# AVX-NEXT:             RET 0, implicit %xmm0
#
# AVX512ALL:            %0 = COPY %xmm0
# AVX512ALL-NEXT:       %1 = COPY %xmm1
# AVX512ALL-NEXT:       %2 = VDIVSSZrr %0, %1
# AVX512ALL-NEXT:       %xmm0 = COPY %2
# AVX512ALL-NEXT:       RET 0, implicit %xmm0
body:             |
  bb.1 (%ir-block.0):
    liveins: %xmm0, %xmm1

    %0(s32) = COPY %xmm0
    %1(s32) = COPY %xmm1
    %2(s32) = G_FDIV %0, %1
    %xmm0 = COPY %2(s32)
    RET 0, implicit %xmm0

...
---
name:            test_fdiv_double
# ALL-LABEL: name:  test_fdiv_double
alignment:       4
legalized:       true
regBankSelected: true
# NO_AVX512F:       registers:
# NO_AVX512F-NEXT:    - { id: 0, class: fr64, preferred-register: '' }
# NO_AVX512F-NEXT:    - { id: 1, class: fr64, preferred-register: '' }
# NO_AVX512F-NEXT:    - { id: 2, class: fr64, preferred-register: '' }
#
# AVX512ALL:        registers:
# AVX512ALL-NEXT:     - { id: 0, class: fr64x, preferred-register: '' }
# AVX512ALL-NEXT:     - { id: 1, class: fr64x, preferred-register: '' }
# AVX512ALL-NEXT:     - { id: 2, class: fr64x, preferred-register: '' }
registers:
  - { id: 0, class: vecr, preferred-register: '' }
  - { id: 1, class: vecr, preferred-register: '' }
  - { id: 2, class: vecr, preferred-register: '' }
liveins:
fixedStack:
stack:
constants:
# SSE:                  %0 = COPY %xmm0
# SSE-NEXT:             %1 = COPY %xmm1
# SSE-NEXT:             %2 = DIVSDrr %0, %1
# SSE-NEXT:             %xmm0 = COPY %2
# SSE-NEXT:             RET 0, implicit %xmm0
#
# AVX:                  %0 = COPY %xmm0
# AVX-NEXT:             %1 = COPY %xmm1
# AVX-NEXT:             %2 = VDIVSDrr %0, %1
# AVX-NEXT:             %xmm0 = COPY %2
# AVX-NEXT:             RET 0, implicit %xmm0
#
# AVX512ALL:            %0 = COPY %xmm0
# AVX512ALL-NEXT:       %1 = COPY %xmm1
# AVX512ALL-NEXT:       %2 = VDIVSDZrr %0, %1
# AVX512ALL-NEXT:       %xmm0 = COPY %2
# AVX512ALL-NEXT:       RET 0, implicit %xmm0
body:             |
  bb.1 (%ir-block.0):
    liveins: %xmm0, %xmm1

    %0(s64) = COPY %xmm0
    %1(s64) = COPY %xmm1
    %2(s64) = G_FDIV %0, %1
    %xmm0 = COPY %2(s64)
    RET 0, implicit %xmm0

...