llvm-6502/test/Transforms/GlobalDCE/2003-07-01-SelfReference.ll

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; distilled from 255.vortex
; RUN: llvm-as < %s | opt -globaldce | llvm-dis | not grep testfunc
declare i1 ()* @getfunc()
define internal i1 @testfunc() {
%F = call i1 ()* ()* @getfunc( ) ; <i1 ()*> [#uses=1]
%c = icmp eq i1 ()* %F, @testfunc ; <i1> [#uses=1]
ret i1 %c
}