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; REQUIRES: asserts
; Duplicate the return into if.end to enable TCE.
; RUN: opt -passes=tailcallelim -verify-dom-info -stats -disable-output < %s 2>&1 | FileCheck %s
; CHECK: Number of return duplicated
define i32 @fib(i32 %n) nounwind ssp {
entry:
%cmp = icmp slt i32 %n, 2
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
br label %return
if.end: ; preds = %entry
%sub = add nsw i32 %n, -2
%call = call i32 @fib(i32 %sub)
%sub3 = add nsw i32 %n, -1
%call4 = call i32 @fib(i32 %sub3)
%add = add nsw i32 %call, %call4
br label %return
return: ; preds = %if.end, %if.then
%retval.0 = phi i32 [ 1, %if.then ], [ %add, %if.end ]
ret i32 %retval.0
}
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