File: 2003-08-17-BranchFold.ll

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llvm-toolchain-20 1%3A20.1.6-1~exp1
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; This test checks to make sure that 'br X, Dest, Dest' is folded into
; 'br Dest'

; RUN: opt < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s

declare void @noop()

; CHECK-NOT: br i1 %c2
define i32 @test(i1 %c1, i1 %c2) {
	call void @noop( )
	br i1 %c1, label %A, label %Y
A:		; preds = %0
	call void @noop( )
	br i1 %c2, label %X, label %X
X:		; preds = %Y, %A, %A
	call void @noop( )
	ret i32 0
Y:		; preds = %0
	call void @noop( )
	br label %X
}