test/CodeGen/X86/GlobalISel/x86-select-sdiv.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=i386-linux-gnu -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s

--- |
  ; ModuleID = 'sdiv.ll'
  source_filename = "sdiv.ll"
  target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"

  define i8 @test_sdiv_i8(i8 %arg1, i8 %arg2) {
    %res = sdiv i8 %arg1, %arg2
    ret i8 %res
  }

  define i16 @test_sdiv_i16(i16 %arg1, i16 %arg2) {
    %res = sdiv i16 %arg1, %arg2
    ret i16 %res
  }

  define i32 @test_sdiv_i32(i32 %arg1, i32 %arg2) {
    %res = sdiv i32 %arg1, %arg2
    ret i32 %res
  }

...
---
name:            test_sdiv_i8
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }
  - { id: 2, class: gpr }
  - { id: 3, class: gpr }
  - { id: 4, class: gpr }
body:             |
  bb.1 (%ir-block.0):
    liveins: $edi, $esi

    ; CHECK-LABEL: name: test_sdiv_i8
    ; CHECK: liveins: $edi, $esi
    ; CHECK: [[COPY:%[0-9]+]]:gr32_abcd = COPY $edi
    ; CHECK: [[COPY1:%[0-9]+]]:gr8 = COPY [[COPY]].sub_8bit
    ; CHECK: [[COPY2:%[0-9]+]]:gr32_abcd = COPY $esi
    ; CHECK: [[COPY3:%[0-9]+]]:gr8 = COPY [[COPY2]].sub_8bit
    ; CHECK: $ax = MOVSX16rr8 [[COPY1]]
    ; CHECK: IDIV8r [[COPY3]], implicit-def $al, implicit-def $ah, implicit-def $eflags, implicit $ax
    ; CHECK: [[COPY4:%[0-9]+]]:gr8 = COPY $al
    ; CHECK: $al = COPY [[COPY4]]
    ; CHECK: RET 0, implicit $al
    %2:gpr(s32) = COPY $edi
    %0:gpr(s8) = G_TRUNC %2(s32)
    %3:gpr(s32) = COPY $esi
    %1:gpr(s8) = G_TRUNC %3(s32)
    %4:gpr(s8) = G_SDIV %0, %1
    $al = COPY %4(s8)
    RET 0, implicit $al

...
---
name:            test_sdiv_i16
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }
  - { id: 2, class: gpr }
  - { id: 3, class: gpr }
  - { id: 4, class: gpr }
body:             |
  bb.1 (%ir-block.0):
    liveins: $edi, $esi

    ; CHECK-LABEL: name: test_sdiv_i16
    ; CHECK: liveins: $edi, $esi
    ; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $edi
    ; CHECK: [[COPY1:%[0-9]+]]:gr16 = COPY [[COPY]].sub_16bit
    ; CHECK: [[COPY2:%[0-9]+]]:gr32 = COPY $esi
    ; CHECK: [[COPY3:%[0-9]+]]:gr16 = COPY [[COPY2]].sub_16bit
    ; CHECK: $ax = COPY [[COPY1]]
    ; CHECK: CWD implicit-def $ax, implicit-def $dx, implicit $ax
    ; CHECK: IDIV16r [[COPY3]], implicit-def $ax, implicit-def $dx, implicit-def $eflags, implicit $ax, implicit $dx
    ; CHECK: [[COPY4:%[0-9]+]]:gr16 = COPY $ax
    ; CHECK: $ax = COPY [[COPY4]]
    ; CHECK: RET 0, implicit $ax
    %2:gpr(s32) = COPY $edi
    %0:gpr(s16) = G_TRUNC %2(s32)
    %3:gpr(s32) = COPY $esi
    %1:gpr(s16) = G_TRUNC %3(s32)
    %4:gpr(s16) = G_SDIV %0, %1
    $ax = COPY %4(s16)
    RET 0, implicit $ax

...
---
name:            test_sdiv_i32
alignment:       4
legalized:       true
regBankSelected: true
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr }
  - { id: 1, class: gpr }
  - { id: 2, class: gpr }
body:             |
  bb.1 (%ir-block.0):
    liveins: $edi, $esi

    ; CHECK-LABEL: name: test_sdiv_i32
    ; CHECK: liveins: $edi, $esi
    ; CHECK: [[COPY:%[0-9]+]]:gr32 = COPY $edi
    ; CHECK: [[COPY1:%[0-9]+]]:gr32 = COPY $esi
    ; CHECK: $eax = COPY [[COPY]]
    ; CHECK: CDQ implicit-def $eax, implicit-def $edx, implicit $eax
    ; CHECK: IDIV32r [[COPY1]], implicit-def $eax, implicit-def $edx, implicit-def $eflags, implicit $eax, implicit $edx
    ; CHECK: [[COPY2:%[0-9]+]]:gr32 = COPY $eax
    ; CHECK: $eax = COPY [[COPY2]]
    ; CHECK: RET 0, implicit $eax
    %0:gpr(s32) = COPY $edi
    %1:gpr(s32) = COPY $esi
    %2:gpr(s32) = G_SDIV %0, %1
    $eax = COPY %2(s32)
    RET 0, implicit $eax

...