llvm/test/Transforms/GlobalOpt/alias-weak.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals all --include-generated-funcs --version 4
; RUN: opt < %s -passes=globalopt -S | FileCheck %s

@f1_alias = linkonce_odr hidden alias void (), ptr @f1
@f2_alias = linkonce_odr hidden alias void (), ptr @f2

define void @foo() {
  call void @f1_alias()
  ret void
}

define void @bar() {
  call void @f1()
  ret void
}

define void @baz() {
  call void @f2_alias()
  ret void
}

; We cannot use `f1_alias` to replace `f1` because they are both in use
; and `f1_alias` could be replaced at link time.
define internal void @f1() {
  ret void
}

; FIXME: We can use `f2_alias` to replace `f2` because `b2` is not in use.
define internal void @f2() {
  ret void
}
;.
; CHECK: @f1_alias = linkonce_odr hidden alias void (), ptr @f1
; CHECK: @f2_alias = linkonce_odr hidden alias void (), ptr @f2
;.
; CHECK-LABEL: define void @foo() local_unnamed_addr {
; CHECK-NEXT:    call void @f1_alias()
; CHECK-NEXT:    ret void
;
;
; CHECK-LABEL: define void @bar() local_unnamed_addr {
; CHECK-NEXT:    call void @f1()
; CHECK-NEXT:    ret void
;
;
; CHECK-LABEL: define void @baz() local_unnamed_addr {
; CHECK-NEXT:    call void @f2_alias()
; CHECK-NEXT:    ret void
;
;
; CHECK-LABEL: define internal void @f1() {
; CHECK-NEXT:    ret void
;
;
; CHECK-LABEL: define internal void @f2() {
; CHECK-NEXT:    ret void
;