Files
clang-p2996/llvm/test/CodeGen/AMDGPU/mcp-implicit-clobber.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 UTC_ARGS: --version 4
# RUN: llc -mtriple=amdgcn -mcpu=gfx900 %s -o - -run-pass machine-cp -verify-machineinstrs | FileCheck %s
# The MachineCopyPropagation Pass should not treat the subsequent
# instruction "$sgpr2_sgpr3 = COPY $sgpr6_sgpr7" as a NopCopy.
# For detailed information, please refer to issue 73512.
---
name: foo
body: |
bb.0.entry:
liveins: $sgpr4_sgpr5, $sgpr6_sgpr7
; CHECK-LABEL: name: foo
; CHECK: liveins: $sgpr4_sgpr5, $sgpr6_sgpr7
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $sgpr2_sgpr3 = COPY $sgpr6_sgpr7
; CHECK-NEXT: S_NOP 0, implicit-def $sgpr0
; CHECK-NEXT: $sgpr2_sgpr3 = COPY $sgpr6_sgpr7
; CHECK-NEXT: S_NOP 0, implicit $sgpr2_sgpr3
$sgpr2_sgpr3 = COPY $sgpr6_sgpr7
$sgpr0 = COPY $sgpr3
S_NOP 0, implicit-def $sgpr0
$sgpr3 = COPY killed $sgpr5
$sgpr2_sgpr3 = COPY $sgpr6_sgpr7
S_NOP 0, implicit $sgpr2_sgpr3
...