File: 2003-07-01-SelfReference.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; distilled from 255.vortex
; RUN: opt < %s -passes=globaldce -S | FileCheck %s

; CHECK-NOT: testfunc

declare ptr @getfunc()

define internal i1 @testfunc() {
  %F = call ptr @getfunc()                ; <ptr> [#uses=1]
  %c = icmp eq ptr %F, @testfunc          ; <i1> [#uses=1]
  ret i1 %c
}