Files
clang-p2996/llvm/test/CodeGen/AMDGPU/fast-regalloc-bundles.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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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn -mcpu=gfx902 -verify-machineinstrs -run-pass=regallocfast %s -o - | FileCheck --check-prefix=GCN %s
---
name: fast_regalloc_bundle_handling
tracksRegLiveness: true
registers:
- { id: 0, class: vgpr_32 }
- { id: 1, class: vgpr_32 }
- { id: 2, class: vgpr_32 }
body: |
bb.0:
; GCN-LABEL: name: fast_regalloc_bundle_handling
; GCN: renamable $vgpr0 = IMPLICIT_DEF
; GCN-NEXT: renamable $vgpr1 = IMPLICIT_DEF
; GCN-NEXT: renamable $vgpr0 = BUNDLE implicit killed renamable $vgpr0, implicit killed renamable $vgpr1, implicit $exec {
; GCN-NEXT: renamable $vgpr0 = V_ADD_U32_e32 $vgpr0, $vgpr1, implicit $exec
; GCN-NEXT: }
; GCN-NEXT: S_ENDPGM 0, implicit killed renamable $vgpr0
%0 = IMPLICIT_DEF
%1 = IMPLICIT_DEF
%2 = BUNDLE implicit %0, implicit %1, implicit $exec {
%2 = V_ADD_U32_e32 %0, %1, implicit $exec
}
S_ENDPGM 0, implicit %2
...