llvm/llvm/test/CodeGen/X86/GlobalISel/legalize-undef.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 --check-prefix=X64
# RUN: llc -mtriple=i386-linux-gnu   -run-pass=legalizer %s -o - | FileCheck %s --check-prefix=X32

---
name:            test_implicit_def
registers:
#
body: |
  bb.0.entry:
    liveins:
    ; X64-LABEL: name: test_implicit_def
    ; X64: [[DEF:%[0-9]+]]:_(p0) = G_IMPLICIT_DEF
    ; X64-NEXT: [[C:%[0-9]+]]:_(s8) = G_CONSTANT i8 0
    ; X64-NEXT: G_STORE [[C]](s8), [[DEF]](p0) :: (store (s1))
    ; X64-NEXT: [[DEF1:%[0-9]+]]:_(s8) = G_IMPLICIT_DEF
    ; X64-NEXT: G_STORE [[DEF1]](s8), [[DEF]](p0) :: (store (s8))
    ; X64-NEXT: [[DEF2:%[0-9]+]]:_(s16) = G_IMPLICIT_DEF
    ; X64-NEXT: G_STORE [[DEF2]](s16), [[DEF]](p0) :: (store (s16))
    ; X64-NEXT: [[DEF3:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
    ; X64-NEXT: G_STORE [[DEF3]](s32), [[DEF]](p0) :: (store (s32))
    ; X64-NEXT: [[DEF4:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
    ; X64-NEXT: G_STORE [[DEF4]](s64), [[DEF]](p0) :: (store (s64))
    ; X32-LABEL: name: test_implicit_def
    ; X32: [[DEF:%[0-9]+]]:_(p0) = G_IMPLICIT_DEF
    ; X32-NEXT: [[C:%[0-9]+]]:_(s8) = G_CONSTANT i8 0
    ; X32-NEXT: G_STORE [[C]](s8), [[DEF]](p0) :: (store (s1))
    ; X32-NEXT: [[DEF1:%[0-9]+]]:_(s8) = G_IMPLICIT_DEF
    ; X32-NEXT: G_STORE [[DEF1]](s8), [[DEF]](p0) :: (store (s8))
    ; X32-NEXT: [[DEF2:%[0-9]+]]:_(s16) = G_IMPLICIT_DEF
    ; X32-NEXT: G_STORE [[DEF2]](s16), [[DEF]](p0) :: (store (s16))
    ; X32-NEXT: [[DEF3:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
    ; X32-NEXT: G_STORE [[DEF3]](s32), [[DEF]](p0) :: (store (s32))
    ; X32-NEXT: [[DEF4:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
    ; X32-NEXT: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[DEF4]](s64)
    ; X32-NEXT: G_STORE [[UV]](s32), [[DEF]](p0) :: (store (s32), align 8)
    ; X32-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
    ; X32-NEXT: [[PTR_ADD:%[0-9]+]]:_(p0) = G_PTR_ADD [[DEF]], [[C1]](s32)
    ; X32-NEXT: G_STORE [[UV1]](s32), [[PTR_ADD]](p0) :: (store (s32) into unknown-address + 4)
    %5:_(p0) = G_IMPLICIT_DEF
    %0:_(s1) = G_IMPLICIT_DEF
    G_STORE %0, %5 ::(store (s1))
    %1:_(s8) = G_IMPLICIT_DEF
    G_STORE %1, %5 ::(store (s8))
    %2:_(s16) = G_IMPLICIT_DEF
    G_STORE %2, %5 ::(store (s16))
    %3:_(s32) = G_IMPLICIT_DEF
    G_STORE %3, %5 ::(store (s32))
    %4:_(s64) = G_IMPLICIT_DEF
    G_STORE %4, %5 ::(store (s64))
...