llvm/test/tools/llvm-reduce/mir/drop-ir-references.mir

# REQUIRES: amdgpu-registered-target
# RUN: llvm-reduce -abort-on-invalid-reduction -simplify-mir -mtriple=amdgcn-amd-amdhsa --test FileCheck --test-arg --check-prefix=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t 2> %t.log
# RUN: FileCheck --check-prefix=RESULT %s < %t

# CHECK-INTERESTINGNESS: G_LOAD
# CHECK-INTERESTINGNESS: G_LOAD
# CHECK-INTERESTINGNESS: G_LOAD
# CHECK-INTERESTINGNESS: G_LOAD
# CHECK-INTERESTINGNESS: G_STORE
# CHECK-INTERESTINGNESS: G_STORE
# CHECK-INTERESTINGNESS: G_STORE %{{[0-9]+}}(s32), %{{[0-9]+}}(p5) :: (store (s32) into %ir.keep.store, addrspace 5)

# RESULT: name: func
# RESULT: stack:
# RESULT-NEXT: - { id: 0, size: 32, alignment: 8 }

# RESULT: body:
# RESULT-NEXT: bb.0:
# RESULT: %{{[0-9]+}}:_(<2 x s16>) = G_LOAD %{{[0-9]+}}(p1) :: (load (<2 x s16>), align 32, addrspace 1)

# RESULT: bb.1:
# RESULT-NEXT: %{{[0-9]+}}:_(<2 x s32>) = G_LOAD %{{[0-9]+}}(p1) :: (load (<2 x s32>), addrspace 3)
# RESULT-NEXT: %{{[0-9]+}}:_(<2 x s32>) = G_LOAD %{{[0-9]+}}(p1) :: (load (<2 x s32>) from unknown-address + 8, addrspace 3)
# RESULT-NEXT: %{{[0-9]+}}:_(<2 x s32>) = G_LOAD %{{[0-9]+}}(p1) :: (load (<2 x s32>) from unknown-address + 12, align 4, basealign 8, addrspace 3)


# RESULT: bb.2:
# RESULT-NEXT: G_STORE %{{[0-9]+}}(<2 x s32>), %{{[0-9]+}}(p5) :: (store (<2 x s32>) into %fixed-stack.0, addrspace 5)
# RESULT-NEXT: G_STORE %{{[0-9]+}}(<2 x s32>), %{{[0-9]+}}(p5) :: (store (<2 x s32>) into %stack.0, addrspace 5)

# RESULT: bb.3:
# RESULT-NEXT: G_STORE %{{[0-9]+}}(s32), %{{[0-9]+}}(p5) :: (store (s32) into %ir.keep.store, addrspace 5)
# RESULT-NEXT: S_ENDPGM

--- |
  define void @func(<2 x i16> addrspace(1)* %argptr0, <2 x i32> addrspace(3)* %argptr1, i32 addrspace(5)* %keep.store) {
  entry:
    %alloca = alloca i32, addrspace(5)
    br label %block.name.0

  block.name.0:
    br label %block.name.1

  block.name.1:
    br label %exit

  exit:
    ret void
  }

...
---
name: func
tracksRegLiveness: true
fixedStack:
  - { id: 0, offset: 16, size: 8, alignment: 8 }
stack:
  - { id: 0, size: 32, alignment: 8, name: alloca }
body:             |
  bb.0.entry:
    S_WAITCNT 0
    S_NOP 0
    %0:_(p1) = G_IMPLICIT_DEF
    %1:_(<2 x s16>) = G_LOAD %0 :: (load (<2 x s16>) from %ir.argptr0, align 32, addrspace 1)
    %2:_(<2 x s32>) = G_ZEXT %1

  bb.1.block.name.0:
    %3:_(<2 x s32>) = G_LOAD %0 :: (load (<2 x s32>) from %ir.argptr1, addrspace 3)
    %4:_(<2 x s32>) = G_LOAD %0 :: (load (<2 x s32>) from %ir.argptr1 + 8, addrspace 3)
    %5:_(<2 x s32>) = G_LOAD %0 :: (load (<2 x s32>) from %ir.argptr1 + 12, addrspace 3)

  bb.2.block.name.0:
    %6:_(<2 x s32>) = G_ADD %2, %3
    %7:_(<2 x s32>) = G_ADD %6, %4
    %8:_(<2 x s32>) = G_ADD %7, %5
    %9:_(p5) = G_IMPLICIT_DEF
    G_STORE %8, %9 :: (store (<2 x s32>) into %fixed-stack.0, addrspace 5)
    G_STORE %8, %9 :: (store (<2 x s32>) into %stack.0.alloca, addrspace 5)

  bb.3.exit:
    %10:_(p5) = G_IMPLICIT_DEF
    %11:_(s32) = G_IMPLICIT_DEF
    G_STORE %11, %10 :: (store (s32) into %ir.keep.store, addrspace 5)
    S_ENDPGM 0
...