llvm/test/CodeGen/AMDGPU/si-annotate-cf-unreachable.ll
Matt Arsenault d706d030af AMDGPU: Mark all unspecified CC functions in tests as amdgpu_kernel
Currently the default C calling convention functions are treated
the same as compute kernels. Make this explicit so the default
calling convention can be changed to a non-kernel.

Converted with perl -pi -e 's/define void/define amdgpu_kernel void/'
on the relevant test directories (and undoing in one place that actually
wanted a non-kernel).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298444 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-21 21:39:51 +00:00

41 lines
1.4 KiB
LLVM

; RUN: opt -mtriple=amdgcn-- -S -structurizecfg -si-annotate-control-flow %s | FileCheck -check-prefix=OPT %s
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
; OPT-LABEL: @annotate_unreachable(
; OPT: call { i1, i64 } @llvm.amdgcn.if(
; OPT-NOT: call void @llvm.amdgcn.end.cf(
; GCN-LABEL: {{^}}annotate_unreachable:
; GCN: s_and_saveexec_b64
; GCN-NOT: s_endpgm
; GCN: .Lfunc_end0
define amdgpu_kernel void @annotate_unreachable(<4 x float> addrspace(1)* noalias nocapture readonly %arg) #0 {
bb:
%tmp = tail call i32 @llvm.amdgcn.workitem.id.x()
br label %bb1
bb1: ; preds = %bb
%tmp2 = sext i32 %tmp to i64
%tmp3 = getelementptr inbounds <4 x float>, <4 x float> addrspace(1)* %arg, i64 %tmp2
%tmp4 = load <4 x float>, <4 x float> addrspace(1)* %tmp3, align 16
br i1 undef, label %bb3, label %bb5 ; label order reversed
bb3: ; preds = %bb1
%tmp6 = extractelement <4 x float> %tmp4, i32 2
%tmp7 = fcmp olt float %tmp6, 0.000000e+00
br i1 %tmp7, label %bb4, label %bb5
bb4: ; preds = %bb3
unreachable
bb5: ; preds = %bb3, %bb1
unreachable
}
declare i32 @llvm.amdgcn.workitem.id.x() #1
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }