File: deadblockaddr.ll

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llvm-toolchain-13 1%3A13.0.1-6~deb11u1
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; RUN: opt -globaldce -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S < %s | FileCheck %s

; Tests whether globaldce does the right cleanup while removing @bar
; so that a dead BlockAddress reference to foo won't prevent other passes
; to work properly, e.g. simplifycfg
@bar = internal unnamed_addr constant i8* blockaddress(@foo, %L1)

; CHECK-LABEL: foo
; CHECK-NOT: br label %L1
; CHECK: ret void
define void @foo() {
entry:
  br label %L1
L1:
  ret void
}