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; RUN: opt < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
; Checks that the SimplifyCFG pass won't duplicate a call to a function marked
; convergent.
;
; CHECK: call void @barrier
; CHECK-NOT: call void @barrier
define void @check(i1 %cond, ptr %out) {
entry:
br i1 %cond, label %if.then, label %if.end
if.then:
store i32 5, ptr %out
br label %if.end
if.end:
%x = phi i1 [ true, %entry ], [ false, %if.then ]
call void @barrier()
br i1 %x, label %cond.end, label %cond.false
cond.false:
br label %cond.end
cond.end:
ret void
}
declare void @barrier() convergent
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