| ; RUN: opt -objc-arc-contract -S < %s | FileCheck %s |
| ; RUN: opt -passes=objc-arc-contract -S < %s | FileCheck %s |
| |
| ; CHECK-LABEL: define void @test0() { |
| ; CHECK: %[[CALL:.*]] = notail call i8* @foo() [ "clang.arc.attachedcall"(i64 0) ] |
| ; CHECK: call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %[[CALL]]) |
| |
| define void @test0() { |
| %call1 = call i8* @foo() [ "clang.arc.attachedcall"(i64 0) ] |
| ret void |
| } |
| |
| ; CHECK-LABEL: define void @test1() { |
| ; CHECK: %[[CALL:.*]] = notail call i8* @foo() [ "clang.arc.attachedcall"(i64 1) ] |
| ; CHECK: call i8* @llvm.objc.unsafeClaimAutoreleasedReturnValue(i8* %[[CALL]]) |
| |
| define void @test1() { |
| %call1 = call i8* @foo() [ "clang.arc.attachedcall"(i64 1) ] |
| ret void |
| } |
| |
| ; CHECK-LABEL:define i8* @test2( |
| ; CHECK: %[[CALL1:.*]] = invoke i8* @foo() [ "clang.arc.attachedcall"(i64 0) ] |
| |
| ; CHECK: %[[V0:.*]] = call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %[[CALL1]]) |
| ; CHECK-NEXT: br |
| |
| ; CHECK: %[[CALL3:.*]] = invoke i8* @foo() [ "clang.arc.attachedcall"(i64 0) ] |
| |
| ; CHECK: %[[V2:.*]] = call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %[[CALL3]]) |
| ; CHECK-NEXT: br |
| |
| ; CHECK: %[[RETVAL:.*]] = phi i8* [ %[[V0]], {{.*}} ], [ %[[V2]], {{.*}} ] |
| ; CHECK: ret i8* %[[RETVAL]] |
| |
| define i8* @test2(i1 zeroext %b) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { |
| entry: |
| br i1 %b, label %if.then, label %if.end |
| |
| if.then: |
| %call1 = invoke i8* @foo() [ "clang.arc.attachedcall"(i64 0) ] |
| to label %cleanup unwind label %lpad |
| |
| lpad: |
| %0 = landingpad { i8*, i32 } |
| cleanup |
| resume { i8*, i32 } undef |
| |
| if.end: |
| %call3 = invoke i8* @foo() [ "clang.arc.attachedcall"(i64 0) ] |
| to label %cleanup unwind label %lpad |
| |
| cleanup: |
| %retval.0 = phi i8* [ %call1, %if.then ], [ %call3, %if.end ] |
| ret i8* %retval.0 |
| } |
| |
| declare i8* @foo() |
| declare i32 @__gxx_personality_v0(...) |
| |
| !llvm.module.flags = !{!0} |
| |
| !0 = !{i32 1, !"clang.arc.retainAutoreleasedReturnValueMarker", !"mov\09fp, fp\09\09// marker for objc_retainAutoreleaseReturnValue"} |