Files
clang-p2996/llvm/test/CodeGen/AMDGPU/vector-legalizer-divergence.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

31 lines
1.4 KiB
LLVM

; RUN: llc -mtriple=amdgcn < %s
; Tests for a bug in SelectionDAG::UpdateNodeOperands exposed by VectorLegalizer
; where divergence information is not updated.
declare i32 @llvm.amdgcn.workitem.id.x()
define amdgpu_kernel void @spam(ptr addrspace(1) noalias %arg) {
%tmp = tail call i32 @llvm.amdgcn.workitem.id.x()
%tmp1 = zext i32 %tmp to i64
%tmp2 = getelementptr inbounds double, ptr addrspace(1) %arg, i64 %tmp1
%tmp3 = load double, ptr addrspace(1) %tmp2, align 8
%tmp4 = fadd double undef, 0.000000e+00
%tmp5 = insertelement <2 x double> undef, double %tmp4, i64 0
%tmp6 = insertelement <2 x double> %tmp5, double %tmp3, i64 1
%tmp7 = insertelement <2 x double> %tmp6, double 0.000000e+00, i64 1
%tmp8 = fadd <2 x double> zeroinitializer, undef
%tmp9 = fadd <2 x double> %tmp7, zeroinitializer
%tmp10 = extractelement <2 x double> %tmp8, i64 0
%tmp11 = getelementptr inbounds double, ptr addrspace(1) %tmp2, i64 2
store double %tmp10, ptr addrspace(1) %tmp11, align 8
%tmp12 = getelementptr inbounds double, ptr addrspace(1) %tmp2, i64 3
store double undef, ptr addrspace(1) %tmp12, align 8
%tmp13 = extractelement <2 x double> %tmp9, i64 0
%tmp14 = getelementptr inbounds double, ptr addrspace(1) %tmp2, i64 6
store double %tmp13, ptr addrspace(1) %tmp14, align 8
%tmp15 = getelementptr inbounds double, ptr addrspace(1) %tmp2, i64 7
store double 0.000000e+00, ptr addrspace(1) %tmp15, align 8
ret void
}