llvm-project/llvm/test/CodeGen/AMDGPU/disconnected-predset-break-bug.ll
Fangrui Song 9e9907f1cf
[AMDGPU,test] Change llc -march= to -mtriple= (#75982)
Similar to 806761a7629df268c8aed49657aeccffa6bca449.

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

30 lines
1.1 KiB
LLVM

; RUN: llc < %s -mtriple=r600 -mcpu=redwood | FileCheck %s
; PRED_SET* instructions must be tied to any instruction that uses their
; result. This tests that there are no instructions between the PRED_SET*
; and the PREDICATE_BREAK in this loop.
; CHECK: {{^}}loop_ge:
; CHECK: LOOP_START_DX10
; CHECK: ALU_PUSH_BEFORE
; CHECK-NEXT: JUMP
; CHECK-NEXT: LOOP_BREAK
define amdgpu_kernel void @loop_ge(ptr addrspace(1) nocapture %out, i32 %iterations) nounwind {
entry:
%cmp5 = icmp sgt i32 %iterations, 0
br i1 %cmp5, label %for.body, label %for.end
for.body: ; preds = %for.body, %entry
%i.07.in = phi i32 [ %i.07, %for.body ], [ %iterations, %entry ]
%ai.06 = phi i32 [ %add, %for.body ], [ 0, %entry ]
%i.07 = add nsw i32 %i.07.in, -1
%arrayidx = getelementptr inbounds i32, ptr addrspace(1) %out, i32 %ai.06
store i32 %i.07, ptr addrspace(1) %arrayidx, align 4
%add = add nsw i32 %ai.06, 1
%exitcond = icmp eq i32 %add, %iterations
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body, %entry
ret void
}