42 lines
1.1 KiB
LLVM
42 lines
1.1 KiB
LLVM
; RUN: llvm-dis < %s.bc | FileCheck %s
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define void @loop_nesting() convergent {
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A:
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; CHECK-LABEL: A:
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; CHECK: [[A:%.*]] = call token @llvm.experimental.convergence.entry()
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;
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%a = call token @llvm.experimental.convergence.entry()
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br label %B
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B:
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; CHECK-LABEL: B:
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; CHECK: [[B:%.*]] = call token @llvm.experimental.convergence.anchor()
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;
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%b = call token @llvm.experimental.convergence.anchor()
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br i1 undef, label %C, label %D
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C:
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; CHECK-LABEL: C:
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; CHECK: [[C:%.*]] = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token [[B]]) ]
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; CHEC K: call void @f() [ "convergencectrl"(token [[C]]) ]
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;
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%c = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %b) ]
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call void @f() [ "convergencectrl"(token %c) ]
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br label %B
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D:
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; CHECK-LABEL: D:
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; CHECK: call void @f() [ "convergencectrl"(token [[B]]) ]
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;
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call void @f() [ "convergencectrl"(token %b) ]
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br i1 undef, label %B, label %E
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E:
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ret void
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}
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declare void @f() convergent
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declare token @llvm.experimental.convergence.entry()
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declare token @llvm.experimental.convergence.anchor()
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declare token @llvm.experimental.convergence.loop()
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