Files
clang-p2996/llvm/test/CodeGen/AMDGPU/cayman-loop-bug.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

37 lines
865 B
LLVM

; RUN: llc < %s -mtriple=r600 -mcpu=cayman | FileCheck %s
; CHECK-LABEL: {{^}}main:
; CHECK: LOOP_START_DX10
; CHECK: ALU_PUSH_BEFORE
; CHECK: LOOP_START_DX10
; CHECK: PUSH
; CHECK-NOT: ALU_PUSH_BEFORE
; CHECK: END_LOOP
; CHECK: END_LOOP
define amdgpu_ps void @main (<4 x float> inreg %reg0) {
entry:
br label %outer_loop
outer_loop:
%cnt = phi i32 [0, %entry], [%cnt_incr, %inner_loop]
%cond = icmp eq i32 %cnt, 16
br i1 %cond, label %outer_loop_body, label %exit
outer_loop_body:
%cnt_incr = add i32 %cnt, 1
br label %inner_loop
inner_loop:
%cnt2 = phi i32 [0, %outer_loop_body], [%cnt2_incr, %inner_loop_body]
%n = load volatile i32, ptr addrspace(1) undef
%cond2 = icmp slt i32 %cnt2, %n
br i1 %cond2, label %inner_loop_body, label %outer_loop
inner_loop_body:
%cnt2_incr = add i32 %cnt2, 1
br label %inner_loop
exit:
ret void
}