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
implementation
declare bool()* %getfunc()
internal bool %testfunc() {
%F = call bool()*()* %getfunc()
%c = seteq bool()* %F, %testfunc
ret bool %c
}