Files
clang-p2996/llvm/test/CodeGen/AMDGPU/vop-shrink.ll
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

52 lines
1.7 KiB
LLVM

; RUN: llc -mtriple=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -mtriple=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; Test that we correctly commute a sub instruction
; FUNC-LABEL: {{^}}sub_rev:
; SI-NOT: v_sub_i32_e32 v{{[0-9]+}}, vcc, s
; SI: v_subrev_{{[iu]}}32_e32 v{{[0-9]+}}, vcc, s
; ModuleID = 'vop-shrink.ll'
define amdgpu_kernel void @sub_rev(ptr addrspace(1) %out, <4 x i32> %sgpr, i32 %cond) {
entry:
%vgpr = call i32 @llvm.amdgcn.workitem.id.x() #1
%tmp = icmp eq i32 %cond, 0
br i1 %tmp, label %if, label %else
if: ; preds = %entry
%tmp1 = getelementptr i32, ptr addrspace(1) %out, i32 1
%tmp2 = extractelement <4 x i32> %sgpr, i32 1
store i32 %tmp2, ptr addrspace(1) %out
br label %endif
else: ; preds = %entry
%tmp3 = extractelement <4 x i32> %sgpr, i32 2
%tmp4 = sub i32 %vgpr, %tmp3
store i32 %tmp4, ptr addrspace(1) %out
br label %endif
endif: ; preds = %else, %if
ret void
}
; Test that we fold an immediate that was illegal for a 64-bit op into the
; 32-bit op when we shrink it.
; FUNC-LABEL: {{^}}add_fold:
; SI: v_add_f32_e32 v{{[0-9]+}}, 0x44800000
define amdgpu_kernel void @add_fold(ptr addrspace(1) %out) {
entry:
%tmp = call i32 @llvm.amdgcn.workitem.id.x()
%tmp1 = uitofp i32 %tmp to float
%tmp2 = fadd float %tmp1, 1.024000e+03
store float %tmp2, ptr addrspace(1) %out
ret void
}
; Function Attrs: nounwind readnone
declare i32 @llvm.amdgcn.workitem.id.x() #0
attributes #0 = { nounwind readnone }
attributes #1 = { readnone }