; RUN: opt -passes=objc-arc-contract -S < %s | FileCheck %s ; CHECK-LABEL: define void @test0() { ; CHECK: %[[CALL:.*]] = notail call ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] ; CHECK-NOT: call ptr @llvm.objc.retainAutoreleasedReturnValue( define void @test0() { %call1 = call ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] ret void } ; CHECK-LABEL: define void @test1() { ; CHECK: %[[CALL:.*]] = notail call ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ] ; CHECK-NOT: call ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue( define void @test1() { %call1 = call ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ] ret void } ; CHECK-LABEL:define ptr @test2( ; CHECK: %[[V0:.*]] = invoke ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] ; CHECK-NOT: = call ptr @llvm.objc.retainAutoreleasedReturnValue( ; CHECK: br ; CHECK: %[[V2:.*]] = invoke ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] ; CHECK-NOT: = call ptr @llvm.objc.retainAutoreleasedReturnValue( ; CHECK: br ; CHECK: %[[RETVAL:.*]] = phi ptr [ %[[V0]], {{.*}} ], [ %[[V2]], {{.*}} ] ; CHECK: ret ptr %[[RETVAL]] define ptr @test2(i1 zeroext %b) personality ptr @__gxx_personality_v0 { entry: br i1 %b, label %if.then, label %if.end if.then: %call1 = invoke ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] to label %cleanup unwind label %lpad lpad: %0 = landingpad { ptr, i32 } cleanup resume { ptr, i32 } undef if.end: %call3 = invoke ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] to label %cleanup unwind label %lpad cleanup: %retval.0 = phi ptr [ %call1, %if.then ], [ %call3, %if.end ] ret ptr %retval.0 } ; "clang.arc.attachedcall" is ignored if the return type of the called function is void. ; CHECK-LABEL: define void @test3( ; CHECK: call void @foo2() #[[ATTR1:.*]] [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] ; CHECK-NEXT: ret void define void @test3() { call void @foo2() #0 [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ] ret void } declare ptr @foo() declare void @foo2() declare i32 @__gxx_personality_v0(...) declare ptr @llvm.objc.retainAutoreleasedReturnValue(ptr) declare ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue(ptr) !llvm.module.flags = !{!0} ; CHECK: attributes #[[ATTR1]] = { noreturn } attributes #0 = { noreturn } !0 = !{i32 1, !"clang.arc.retainAutoreleasedReturnValueMarker", !"mov\09fp, fp\09\09// marker for objc_retainAutoreleaseReturnValue"}