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1; RUN: opt -mtriple=amdgcn-- -S -structurizecfg -si-annotate-control-flow %s | FileCheck -check-prefix=OPT %s2; RUN: opt -mtriple=amdgcn-- -S -passes=structurizecfg,si-annotate-control-flow %s | FileCheck -check-prefix=OPT %s3; RUN: llc -mtriple=amdgcn < %s | FileCheck -check-prefix=GCN %s4 5 6; OPT-LABEL: @annotate_unreachable(7; OPT: call { i1, i64 } @llvm.amdgcn.if.i64(8; OPT-NOT: call void @llvm.amdgcn.end.cf9 10 11; GCN-LABEL: {{^}}annotate_unreachable:12; GCN: s_and_saveexec_b6413; GCN-NOT: s_endpgm14; GCN: .Lfunc_end015define amdgpu_kernel void @annotate_unreachable(ptr addrspace(1) noalias nocapture readonly %arg, i1 %c0) #0 {16bb:17 %tmp = tail call i32 @llvm.amdgcn.workitem.id.x()18 br label %bb119 20bb1: ; preds = %bb21 %tmp2 = sext i32 %tmp to i6422 %tmp3 = getelementptr inbounds <4 x float>, ptr addrspace(1) %arg, i64 %tmp223 %tmp4 = load <4 x float>, ptr addrspace(1) %tmp3, align 1624 br i1 %c0, label %bb3, label %bb5 ; label order reversed25 26bb3: ; preds = %bb127 %tmp6 = extractelement <4 x float> %tmp4, i32 228 %tmp7 = fcmp olt float %tmp6, 0.000000e+0029 br i1 %tmp7, label %bb4, label %bb530 31bb4: ; preds = %bb332 unreachable33 34bb5: ; preds = %bb3, %bb135 unreachable36}37 38declare i32 @llvm.amdgcn.workitem.id.x() #139 40attributes #0 = { nounwind }41attributes #1 = { nounwind readnone }42