File: deadglobal.ll

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llvm-toolchain-11 1%3A11.0.1-2
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; RUN: opt < %s -globalopt -S | FileCheck %s

@G1 = internal global i32 123            ; <i32*> [#uses=1]
@A1 = internal alias i32, i32* @G1

; CHECK-NOT: @G1
; CHECK: @G2
; CHECK-NOT: @G3

; CHECK-NOT: @A1

define void @foo1() {
; CHECK: define void @foo
; CHECK-NEXT: ret
        store i32 1, i32* @G1
        ret void
}

@G2 = linkonce_odr constant i32 42

define void @foo2() {
; CHECK-LABEL: define void @foo2(
; CHECK-NEXT: store
        store i32 1, i32* @G2
        ret void
}

@G3 = linkonce_odr constant i32 42