Files
clang-p2996/llvm/test/CodeGen/AMDGPU/divergence-at-use.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

45 lines
1.2 KiB
LLVM

; RUN: llc -mtriple=amdgcn -mcpu=gfx900 - < %s | FileCheck %s
@local = addrspace(3) global i32 undef
define amdgpu_kernel void @reducible() {
; CHECK-LABEL: reducible:
; CHECK-NOT: dpp
entry:
%x = call i32 @llvm.amdgcn.workitem.id.x()
br label %loop
loop:
%i = phi i32 [ 0, %entry ], [ %i1, %loop ]
%gep = getelementptr i32, ptr addrspace(3) @local, i32 %i
%cond = icmp ult i32 %i, %x
%i1 = add i32 %i, 1
br i1 %cond, label %loop, label %exit
exit:
%old = atomicrmw add ptr addrspace(3) %gep, i32 %x acq_rel
ret void
}
define amdgpu_kernel void @def_in_nested_cycle() {
; CHECK-LABEL: def_in_nested_cycle:
; CHECK-NOT: dpp
entry:
%x = call i32 @llvm.amdgcn.workitem.id.x()
br label %loop
loop:
%i = phi i32 [ 0, %entry ], [ 0, %innerloop ], [ %i1, %loop ]
%cond = icmp ult i32 %i, %x
%i1 = add i32 %i, 1
br i1 %cond, label %innerloop, label %loop
innerloop:
%i.inner = phi i32 [ 0, %loop ], [ %i1.inner, %innerloop ]
%gep = getelementptr i32, ptr addrspace(3) @local, i32 %i
%i1.inner = add i32 %i, 1
%cond.inner = icmp ult i32 %i, %x
br i1 %cond, label %innerloop, label %loop
exit:
%old = atomicrmw add ptr addrspace(3) %gep, i32 %x acq_rel
ret void
}
declare i32 @llvm.amdgcn.workitem.id.x()