llvm/test/Transforms/GlobalOpt/self-referential-global.ll

; test for issue (https://github.com/llvm/llvm-project/issues/219629)
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -passes=globalopt -S < %s | FileCheck %s

@self_ref = global ptr @self_ref
@stored_once = internal global ptr null

define void @foo() {
; CHECK-LABEL: define void @foo() local_unnamed_addr {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[LOOP:.*]]
; CHECK:       [[LOOP]]:
; CHECK-NEXT:    store ptr @self_ref, ptr @self_ref, align 8
; CHECK-NEXT:    br label %[[LOOP]]
;
entry:
  store ptr @self_ref, ptr @stored_once
  br label %loop

loop:
  %v = load ptr, ptr @stored_once
  store ptr %v, ptr %v
  br label %loop
}