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

105 lines
2.6 KiB
LLVM

; RUN: llc -spec-exec-max-speculation-cost=0 -mtriple=r600 -r600-ir-structurize=0 -mcpu=redwood < %s | FileCheck %s
; These tests make sure the compiler is optimizing branches using predicates
; when it is legal to do so.
; CHECK-LABEL: {{^}}simple_if:
; CHECK: PRED_SET{{[EGN][ET]*}}_INT * Pred,
; CHECK: LSHL * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, Pred_sel
define amdgpu_kernel void @simple_if(ptr addrspace(1) %out, i32 %in) {
entry:
%cmp0 = icmp sgt i32 %in, 0
br i1 %cmp0, label %IF, label %ENDIF
IF:
%tmp1 = shl i32 %in, 1
br label %ENDIF
ENDIF:
%tmp2 = phi i32 [ %in, %entry ], [ %tmp1, %IF ]
store i32 %tmp2, ptr addrspace(1) %out
ret void
}
; CHECK-LABEL: {{^}}simple_if_else:
; CHECK: PRED_SET{{[EGN][ET]*}}_INT * Pred,
; CHECK: LSH{{[LR] \* T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, Pred_sel
; CHECK: LSH{{[LR] \* T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, Pred_sel
define amdgpu_kernel void @simple_if_else(ptr addrspace(1) %out, i32 %in) {
entry:
%0 = icmp sgt i32 %in, 0
br i1 %0, label %IF, label %ELSE
IF:
%1 = shl i32 %in, 1
br label %ENDIF
ELSE:
%2 = lshr i32 %in, 1
br label %ENDIF
ENDIF:
%3 = phi i32 [ %1, %IF ], [ %2, %ELSE ]
store i32 %3, ptr addrspace(1) %out
ret void
}
; CHECK-LABEL: {{^}}nested_if:
; CHECK: ALU_PUSH_BEFORE
; CHECK: JUMP
; CHECK: POP
; CHECK: PRED_SET{{[EGN][ET]*}}_INT * Exec
; CHECK: PRED_SET{{[EGN][ET]*}}_INT * Pred,
; CHECK: LSHL * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, Pred_sel
define amdgpu_kernel void @nested_if(ptr addrspace(1) %out, i32 %in) {
entry:
%0 = icmp sgt i32 %in, 0
br i1 %0, label %IF0, label %ENDIF
IF0:
%1 = add i32 %in, 10
%2 = icmp sgt i32 %1, 0
br i1 %2, label %IF1, label %ENDIF
IF1:
%3 = shl i32 %1, 1
br label %ENDIF
ENDIF:
%4 = phi i32 [%in, %entry], [%1, %IF0], [%3, %IF1]
store i32 %4, ptr addrspace(1) %out
ret void
}
; CHECK-LABEL: {{^}}nested_if_else:
; CHECK: ALU_PUSH_BEFORE
; CHECK: JUMP
; CHECK: POP
; CHECK: PRED_SET{{[EGN][ET]*}}_INT * Exec
; CHECK: PRED_SET{{[EGN][ET]*}}_INT * Pred,
; CHECK: LSH{{[LR] \* T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, Pred_sel
; CHECK: LSH{{[LR] \* T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, Pred_sel
define amdgpu_kernel void @nested_if_else(ptr addrspace(1) %out, i32 %in) {
entry:
%0 = icmp sgt i32 %in, 0
br i1 %0, label %IF0, label %ENDIF
IF0:
%1 = add i32 %in, 10
%2 = icmp sgt i32 %1, 0
br i1 %2, label %IF1, label %ELSE1
IF1:
%3 = shl i32 %1, 1
br label %ENDIF
ELSE1:
%4 = lshr i32 %in, 1
br label %ENDIF
ENDIF:
%5 = phi i32 [%in, %entry], [%3, %IF1], [%4, %ELSE1]
store i32 %5, ptr addrspace(1) %out
ret void
}