71 lines
2.4 KiB
LLVM
71 lines
2.4 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_noloop(
|
|
; OPT-NOT: call i1 @llvm.amdgcn.loop
|
|
|
|
; GCN-LABEL: {{^}}annotate_unreachable_noloop:
|
|
; GCN: s_cbranch_vccnz
|
|
; GCN-NOT: s_endpgm
|
|
; GCN: .Lfunc_end0
|
|
define void @annotate_unreachable_noloop(<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 %bb5, label %bb3
|
|
|
|
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 ; crash goes away if these are swapped
|
|
|
|
bb4: ; preds = %bb3
|
|
unreachable
|
|
|
|
bb5: ; preds = %bb3, %bb1
|
|
unreachable
|
|
}
|
|
|
|
|
|
; OPT-LABEL: @annotate_ret_noloop(
|
|
; OPT-NOT: call i1 @llvm.amdgcn.loop
|
|
|
|
; GCN-LABEL: {{^}}annotate_ret_noloop:
|
|
; GCN: s_cbranch_scc1
|
|
; GCN: s_endpgm
|
|
; GCN: .Lfunc_end1
|
|
define void @annotate_ret_noloop(<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 %bb5, label %bb3
|
|
|
|
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 ; crash goes away if these are swapped
|
|
|
|
bb4: ; preds = %bb3
|
|
ret void
|
|
|
|
bb5: ; preds = %bb3, %bb1
|
|
ret void
|
|
}
|
|
|
|
|
|
declare i32 @llvm.amdgcn.workitem.id.x() #1
|
|
|
|
attributes #0 = { nounwind }
|
|
attributes #1 = { nounwind readnone }
|