Files
clang-p2996/llvm/test/CodeGen/AMDGPU/fold-vgpr-copy.mir
Fangrui Song 9e9907f1cf [AMDGPU,test] Change llc -march= to -mtriple= (#75982)
Similar to 806761a762.

For IR files without a target triple, -mtriple= specifies the full
target triple while -march= merely sets the architecture part of the
default target triple, leaving a target triple which may not make sense,
e.g. amdgpu-apple-darwin.

Therefore, -march= is error-prone and not recommended for tests without
a target triple. The issue has been benign as we recognize
$unknown-apple-darwin as ELF instead of rejecting it outrightly.

This patch changes AMDGPU tests to not rely on the default
OS/environment components. Tests that need fixes are not changed:

```
  LLVM :: CodeGen/AMDGPU/fabs.f64.ll
  LLVM :: CodeGen/AMDGPU/fabs.ll
  LLVM :: CodeGen/AMDGPU/floor.ll
  LLVM :: CodeGen/AMDGPU/fneg-fabs.f64.ll
  LLVM :: CodeGen/AMDGPU/fneg-fabs.ll
  LLVM :: CodeGen/AMDGPU/r600-infinite-loop-bug-while-reorganizing-vector.ll
  LLVM :: CodeGen/AMDGPU/schedule-if-2.ll
```
2024-01-16 21:54:58 -08:00

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# RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -run-pass=si-fold-operands,dead-mi-elimination -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
# RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -run-pass=si-fold-operands,dead-mi-elimination -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
# GCN-LABEL: name: fold_vgpr_to_vgpr_copy
# GCN: %0:vreg_64 = IMPLICIT_DEF
# GCN-NEXT: %1:vgpr_32 = IMPLICIT_DEF
# GCN-NEXT: %2:vgpr_32 = IMPLICIT_DEF
# GCN-NEXT: DS_WRITE2_B32_gfx9 %0.sub0, killed %1, killed %2, 0, 1, 0, implicit $exec
---
name: fold_vgpr_to_vgpr_copy
body: |
bb.0:
%0:vreg_64 = IMPLICIT_DEF
%4:vgpr_32 = IMPLICIT_DEF
%3:vgpr_32 = IMPLICIT_DEF
%1:vgpr_32 = COPY %0.sub0
%2:vgpr_32 = COPY %1
DS_WRITE2_B32_gfx9 %2, killed %4, killed %3, 0, 1, 0, implicit $exec
...
# GCN-LABEL: name: fold_sgpr_to_vgpr_copy
# GCN: %0:sreg_64 = IMPLICIT_DEF
# GCN-NEXT: %1:vgpr_32 = IMPLICIT_DEF
# GCN-NEXT: %2:vgpr_32 = IMPLICIT_DEF
# GCN-NEXT: %4:vgpr_32 = COPY %0.sub0
# GCN-NEXT: DS_WRITE2_B32_gfx9 %4, killed %1, killed %2, 0, 1, 0, implicit $exec
name: fold_sgpr_to_vgpr_copy
body: |
bb.0:
%0:sreg_64 = IMPLICIT_DEF
%4:vgpr_32 = IMPLICIT_DEF
%3:vgpr_32 = IMPLICIT_DEF
%1:sgpr_32 = COPY %0.sub0
%2:vgpr_32 = COPY %1
DS_WRITE2_B32_gfx9 %2, killed %4, killed %3, 0, 1, 0, implicit $exec
...
# GCN-LABEL: name: fma_sgpr_use
# GCN: %0:sreg_64_xexec = IMPLICIT_DEF
# GCN-NEXT: %4:vgpr_32 = nnan ninf nsz arcp contract afn reassoc V_FMA_F32_e64 2, %0.sub0, 0, 1073741824, 0, %0.sub1, 0, 0, implicit $mode, implicit $exec
---
name: fma_sgpr_use
body: |
bb.0:
%0:sreg_64_xexec = IMPLICIT_DEF
%1:sgpr_32 = COPY %0.sub0
%2:sgpr_32 = COPY %0.sub1
%3:vgpr_32 = COPY %2
%4:vgpr_32 = nnan ninf nsz arcp contract afn reassoc V_FMAC_F32_e64 2, %1, 0, 1073741824, 0, %3, 0, 0, implicit $mode, implicit $exec
DS_WRITE2_B32_gfx9 undef %5:vgpr_32, killed %4, undef %6:vgpr_32, 0, 1, 0, implicit $exec
...
# GCN-LABEL: name: fma_sgpr_sgpr_use
# GCN: %0:sgpr_32 = IMPLICIT_DEF
# GCN-NEXT: %2:vgpr_32 = V_MOV_B32_e32 1234567, implicit $exec
# GCN-NEXT: %3:vgpr_32 = V_FMAC_F32_e64 0, %0, 0, 1234567, 0, %2, 0, 0, implicit $mode, implicit $exec
---
name: fma_sgpr_sgpr_use
body: |
bb.0:
%0:sgpr_32 = IMPLICIT_DEF
%1:sgpr_32 = S_MOV_B32 1234567
%2:vgpr_32 = COPY %1
%3:vgpr_32 = V_FMAC_F32_e64 0, %0, 0, %1, 0, %2, 0, 0, implicit $mode, implicit $exec
S_ENDPGM 0, implicit %3
...