; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes=objc-arc < %s | FileCheck %s

target triple = "x86_64-apple-macosx11.0.0"

declare ptr @llvm.objc.retain(ptr returned) #0
declare void @llvm.objc.release(ptr) #0

declare ptr @foo(ptr)

define i1 @_ZN8GrMtlGpu20readOrTransferPixelsEP9GrSurface7SkIRect11GrColorTypePU19objcproto9MTLBuffer11objc_objectmmm(ptr %this) #1 {
; CHECK-LABEL: define i1 @_ZN8GrMtlGpu20readOrTransferPixelsEP9GrSurface7SkIRect11GrColorTypePU19objcproto9MTLBuffer11objc_objectmmm(
; CHECK-SAME: ptr [[THIS:%.*]]) #[[ATTR1:[0-9]+]] {
; CHECK-NEXT:  [[ENTRY:.*]]:
; CHECK-NEXT:    [[RETAIN:%.*]] = tail call ptr @llvm.objc.retain(ptr [[THIS]]) #[[ATTR0:[0-9]+]]
; CHECK-NEXT:    br i1 false, label %[[CLEANUP66:.*]], label %[[IF_END30:.*]]
; CHECK:       [[IF_END30]]:
; CHECK-NEXT:    [[LD_PTR:%.*]] = load ptr, ptr [[THIS]], align 8
; CHECK-NEXT:    call void @foo(ptr [[LD_PTR]])
; CHECK-NEXT:    br label %[[CLEANUP66]]
; CHECK:       [[CLEANUP66]]:
; CHECK-NEXT:    [[MTLTEXTURE_1103:%.*]] = phi ptr [ null, %[[ENTRY]] ], [ [[THIS]], %[[IF_END30]] ]
; CHECK-NEXT:    tail call void @llvm.objc.release(ptr [[MTLTEXTURE_1103]]) #[[ATTR0]]
; CHECK-NEXT:    ret i1 false
;
entry:
  %retain = tail call ptr @llvm.objc.retain(ptr %this)
  br i1 false, label %cleanup66, label %if.end30

if.end30:                                         ; preds = %entry
  %ld.ptr = load ptr, ptr %this, align 8
  call void @foo(ptr %ld.ptr)
  br label %cleanup66

cleanup66:                                        ; preds = %if.end30, %entry
  %mtlTexture.1103 = phi ptr [ null, %entry ], [ %this, %if.end30 ]
  tail call void @llvm.objc.release(ptr %mtlTexture.1103)
  ret i1 false
}

attributes #0 = { nounwind }
attributes #1 = { null_pointer_is_valid }