1 ; RUN: opt -S -objc-arc-contract < %s | FileCheck %s 2 3 ; CHECK: %call = tail call i32* @qux() 4 ; CHECK-NEXT: %tcall = bitcast i32* %call to i8* 5 ; CHECK-NEXT: call void asm sideeffect "mov\09r7, r7\09\09@ marker for objc_retainAutoreleaseReturnValue", ""() 6 ; CHECK-NEXT: %0 = tail call i8* @objc_retainAutoreleasedReturnValue(i8* %tcall) [[NUW:#[0-9]+]] 7 8 define void @foo() { 9 entry: 10 %call = tail call i32* @qux() 11 %tcall = bitcast i32* %call to i8* 12 %0 = tail call i8* @objc_retainAutoreleasedReturnValue(i8* %tcall) nounwind 13 tail call void @bar(i8* %0) 14 ret void 15 } 16 17 declare i32* @qux() 18 declare i8* @objc_retainAutoreleasedReturnValue(i8*) 19 declare void @bar(i8*) 20 21 !clang.arc.retainAutoreleasedReturnValueMarker = !{!0} 22 23 !0 = metadata !{metadata !"mov\09r7, r7\09\09@ marker for objc_retainAutoreleaseReturnValue"} 24 25 ; CHECK: attributes [[NUW]] = { nounwind } 26
