42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; RUN: opt -S -mtriple=amdgcn-- -structurizecfg -si-annotate-control-flow < %s | FileCheck %s
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; CHECK-LABEL: {{^}}define amdgpu_vs void @main
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; CHECK: main_body:
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; CHECK: LOOP.outer:
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; CHECK: LOOP:
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; CHECK: [[if:%[0-9]+]] = call { i1, i64 } @llvm.amdgcn.if(
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; CHECK: [[if_exec:%[0-9]+]] = extractvalue { i1, i64 } [[if]], 1
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;
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; CHECK: Flow:
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;
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; Ensure two else.break calls, for both the inner and outer loops
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;
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; CHECK: call i64 @llvm.amdgcn.else.break(i64 [[if_exec]],
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; CHECK-NEXT: call i64 @llvm.amdgcn.else.break(i64 [[if_exec]],
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; CHECK-NEXT: call void @llvm.amdgcn.end.cf
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;
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; CHECK: Flow1:
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define amdgpu_vs void @main(<4 x float> %vec, i32 %ub, i32 %cont) {
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main_body:
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br label %LOOP.outer
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LOOP.outer: ; preds = %ENDIF, %main_body
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%tmp43 = phi i32 [ 0, %main_body ], [ %tmp47, %ENDIF ]
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br label %LOOP
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LOOP: ; preds = %ENDIF, %LOOP.outer
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%tmp45 = phi i32 [ %tmp43, %LOOP.outer ], [ %tmp47, %ENDIF ]
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%tmp47 = add i32 %tmp45, 1
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%tmp48 = icmp slt i32 %tmp45, %ub
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br i1 %tmp48, label %ENDIF, label %IF
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IF: ; preds = %LOOP
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ret void
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ENDIF: ; preds = %LOOP
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%tmp51 = icmp eq i32 %tmp47, %cont
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br i1 %tmp51, label %LOOP, label %LOOP.outer
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}
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attributes #0 = { nounwind readnone }
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