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