File: 2007-09-17-AliasConstFold2.ll

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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep icmp
; PR1678

@A = alias weak void ()* @B		; <void ()*> [#uses=1]

declare extern_weak void @B()

define i32 @active() {
entry:
	%"alloca point" = bitcast i32 0 to i32		; <i32> [#uses=0]
	%tmp1 = icmp ne void ()* @A, null		; <i1> [#uses=1]
	%tmp12 = zext i1 %tmp1 to i32		; <i32> [#uses=1]
	ret i32 %tmp12
}