llvm-project/llvm/test/CodeGen/AMDGPU/fix-frame-ptr-reg-copy-livein.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

46 lines
2.0 KiB
LLVM

; RUN: llc -mtriple=amdgcn -mcpu=gfx900 -stop-after=prologepilog -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
; It is a small loop test that iterates over the array member of the structure argument passed byval to the function.
; The loop code will keep the prologue and epilogue blocks apart.
; The test is primarily to check the temp register used to preserve the earlier FP value
; is live-in at every BB in the function.
%struct.Data = type { [20 x i32] }
define i32 @fp_save_restore_in_temp_sgpr(ptr addrspace(5) nocapture readonly byval(%struct.Data) align 4 %arg) #0 {
; GCN-LABEL: name: fp_save_restore_in_temp_sgpr
; GCN: bb.0.begin:
; GCN: liveins: $sgpr11
; GCN: $sgpr11 = frame-setup COPY $sgpr33
; GCN: $sgpr33 = frame-setup COPY $sgpr32
; GCN: bb.1.lp_end:
; GCN: liveins: $sgpr10, $sgpr11, $vgpr1, $sgpr4_sgpr5, $sgpr6_sgpr7, $sgpr8_sgpr9
; GCN: bb.2.lp_begin:
; GCN: liveins: $sgpr10, $sgpr11, $vgpr1, $sgpr4_sgpr5, $sgpr6_sgpr7
; GCN: bb.3.Flow:
; GCN: liveins: $sgpr10, $sgpr11, $vgpr0, $vgpr1, $sgpr4_sgpr5, $sgpr6_sgpr7, $sgpr8_sgpr9
; GCN: bb.4.end:
; GCN: liveins: $sgpr11, $vgpr0, $sgpr4_sgpr5
; GCN: $sgpr33 = frame-destroy COPY $sgpr11
begin:
br label %lp_begin
lp_end: ; preds = %lp_begin
%cur_idx = add nuw nsw i32 %idx, 1
%lp_term_cond = icmp eq i32 %cur_idx, 20
br i1 %lp_term_cond, label %end, label %lp_begin
lp_begin: ; preds = %lp_end, %begin
%idx = phi i32 [ 0, %begin ], [ %cur_idx, %lp_end ]
%ptr = getelementptr inbounds %struct.Data, ptr addrspace(5) %arg, i32 0, i32 0, i32 %idx
%data = load i32, ptr addrspace(5) %ptr, align 4
%data_cmp = icmp eq i32 %data, %idx
br i1 %data_cmp, label %lp_end, label %end
end: ; preds = %lp_end, %lp_begin
%ret_val = phi i32 [ 0, %lp_begin ], [ 1, %lp_end ]
ret i32 %ret_val
}
attributes #0 = { norecurse nounwind "frame-pointer"="all" }