File: 2003-07-01-SelfReference.ll

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llvm-toolchain-14 1%3A14.0.6-12
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; distilled from 255.vortex
; RUN: opt < %s -passes=globaldce -S | FileCheck %s

; CHECK-NOT: 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
}