| ; RUN: opt -S -passes=objc-arc < %s | FileCheck %s |
| |
| declare ptr @llvm.objc.retain(ptr) |
| declare void @llvm.objc.release(ptr) |
| declare ptr @llvm.objc.retainAutoreleasedReturnValue(ptr) |
| declare ptr @objc_msgSend(ptr, ptr, ...) |
| declare void @use_pointer(ptr) |
| declare void @callee() |
| declare ptr @returner() |
| |
| ; ARCOpt shouldn't try to move the releases to the block containing the invoke. |
| |
| ; CHECK-LABEL: define void @test0( |
| ; CHECK: invoke.cont: |
| ; CHECK: call void @llvm.objc.release(ptr %zipFile) [[NUW:#[0-9]+]], !clang.imprecise_release !0 |
| ; CHECK: ret void |
| ; CHECK: lpad: |
| ; CHECK: call void @llvm.objc.release(ptr %zipFile) [[NUW]], !clang.imprecise_release !0 |
| ; CHECK: ret void |
| ; CHECK-NEXT: } |
| define void @test0(ptr %zipFile) personality ptr @__gxx_personality_v0 { |
| entry: |
| call ptr @llvm.objc.retain(ptr %zipFile) nounwind |
| call void @use_pointer(ptr %zipFile) |
| invoke void @objc_msgSend(ptr %zipFile) |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: ; preds = %entry |
| call void @llvm.objc.release(ptr %zipFile) nounwind, !clang.imprecise_release !0 |
| ret void |
| |
| lpad: ; preds = %entry |
| %exn = landingpad {ptr, i32} |
| cleanup |
| call void @llvm.objc.release(ptr %zipFile) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; ARCOpt should move the release before the callee calls. |
| |
| ; CHECK-LABEL: define void @test1( |
| ; CHECK: invoke.cont: |
| ; CHECK: call void @llvm.objc.release(ptr %zipFile) [[NUW]], !clang.imprecise_release !0 |
| ; CHECK: call void @callee() |
| ; CHECK: br label %done |
| ; CHECK: lpad: |
| ; CHECK: call void @llvm.objc.release(ptr %zipFile) [[NUW]], !clang.imprecise_release !0 |
| ; CHECK: call void @callee() |
| ; CHECK: br label %done |
| ; CHECK: done: |
| ; CHECK-NEXT: ret void |
| ; CHECK-NEXT: } |
| define void @test1(ptr %zipFile) personality ptr @__gxx_personality_v0 { |
| entry: |
| call ptr @llvm.objc.retain(ptr %zipFile) nounwind |
| call void @use_pointer(ptr %zipFile) |
| invoke void @objc_msgSend(ptr %zipFile) |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: ; preds = %entry |
| call void @callee() |
| br label %done |
| |
| lpad: ; preds = %entry |
| %exn = landingpad {ptr, i32} |
| cleanup |
| call void @callee() |
| br label %done |
| |
| done: |
| call void @llvm.objc.release(ptr %zipFile) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; The optimizer should ignore invoke unwind paths consistently. |
| ; PR12265 |
| |
| ; CHECK: define void @test2() personality ptr @__objc_personality_v0 { |
| ; CHECK: invoke.cont: |
| ; CHECK-NEXT: call ptr @llvm.objc.retain |
| ; CHECK-NOT: @llvm.objc.r |
| ; CHECK: finally.cont: |
| ; CHECK-NEXT: call void @llvm.objc.release |
| ; CHECK-NOT: @objc |
| ; CHECK: finally.rethrow: |
| ; CHECK-NOT: @objc |
| ; CHECK: } |
| define void @test2() personality ptr @__objc_personality_v0 { |
| entry: |
| %call = invoke ptr @objc_msgSend() |
| to label %invoke.cont unwind label %finally.rethrow, !clang.arc.no_objc_arc_exceptions !0 |
| |
| invoke.cont: ; preds = %entry |
| %tmp1 = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind |
| call void @objc_msgSend(), !clang.arc.no_objc_arc_exceptions !0 |
| invoke void @use_pointer(ptr %call) |
| to label %finally.cont unwind label %finally.rethrow, !clang.arc.no_objc_arc_exceptions !0 |
| |
| finally.cont: ; preds = %invoke.cont |
| tail call void @llvm.objc.release(ptr %call) nounwind, !clang.imprecise_release !0 |
| ret void |
| |
| finally.rethrow: ; preds = %invoke.cont, %entry |
| %tmp2 = landingpad { ptr, i32 } |
| catch ptr null |
| unreachable |
| } |
| |
| ; Don't try to place code on invoke critical edges. |
| |
| ; CHECK-LABEL: define void @test3( |
| ; CHECK: if.end: |
| ; CHECK-NEXT: call void @llvm.objc.release(ptr %p) [[NUW]] |
| ; CHECK-NEXT: ret void |
| ; CHECK-NEXT: } |
| define void @test3(ptr %p, i1 %b) personality ptr @__objc_personality_v0 { |
| entry: |
| %0 = call ptr @llvm.objc.retain(ptr %p) |
| call void @callee() |
| br i1 %b, label %if.else, label %if.then |
| |
| if.then: |
| invoke void @use_pointer(ptr %p) |
| to label %if.end unwind label %lpad, !clang.arc.no_objc_arc_exceptions !0 |
| |
| if.else: |
| invoke void @use_pointer(ptr %p) |
| to label %if.end unwind label %lpad, !clang.arc.no_objc_arc_exceptions !0 |
| |
| lpad: |
| %r = landingpad { ptr, i32 } |
| cleanup |
| ret void |
| |
| if.end: |
| call void @llvm.objc.release(ptr %p) |
| ret void |
| } |
| |
| ; Like test3, but with ARC-relevant exception handling. |
| |
| ; CHECK-LABEL: define void @test4( |
| ; CHECK: lpad: |
| ; CHECK-NEXT: %r = landingpad { ptr, i32 } |
| ; CHECK-NEXT: cleanup |
| ; CHECK-NEXT: call void @llvm.objc.release(ptr %p) [[NUW]] |
| ; CHECK-NEXT: ret void |
| ; CHECK: if.end: |
| ; CHECK-NEXT: call void @llvm.objc.release(ptr %p) [[NUW]] |
| ; CHECK-NEXT: ret void |
| ; CHECK-NEXT: } |
| define void @test4(ptr %p, i1 %b) personality ptr @__objc_personality_v0 { |
| entry: |
| %0 = call ptr @llvm.objc.retain(ptr %p) |
| call void @callee() |
| br i1 %b, label %if.else, label %if.then |
| |
| if.then: |
| invoke void @use_pointer(ptr %p) |
| to label %if.end unwind label %lpad |
| |
| if.else: |
| invoke void @use_pointer(ptr %p) |
| to label %if.end unwind label %lpad |
| |
| lpad: |
| %r = landingpad { ptr, i32 } |
| cleanup |
| call void @llvm.objc.release(ptr %p) |
| ret void |
| |
| if.end: |
| call void @llvm.objc.release(ptr %p) |
| ret void |
| } |
| |
| ; Don't turn the retainAutoreleaseReturnValue into retain, because it's |
| ; for an invoke which we can assume codegen will put immediately prior. |
| |
| ; CHECK-LABEL: define void @test5( |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %z) |
| ; CHECK: } |
| define void @test5() personality ptr @__objc_personality_v0 { |
| entry: |
| %z = invoke ptr @returner() |
| to label %if.end unwind label %lpad, !clang.arc.no_objc_arc_exceptions !0 |
| |
| lpad: |
| %r13 = landingpad { ptr, i32 } |
| cleanup |
| ret void |
| |
| if.end: |
| call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %z) |
| ret void |
| } |
| |
| ; Like test5, but there's intervening code. |
| |
| ; CHECK-LABEL: define void @test6( |
| ; CHECK: call ptr @llvm.objc.retain(ptr %z) |
| ; CHECK: } |
| define void @test6() personality ptr @__objc_personality_v0 { |
| entry: |
| %z = invoke ptr @returner() |
| to label %if.end unwind label %lpad, !clang.arc.no_objc_arc_exceptions !0 |
| |
| lpad: |
| %r13 = landingpad { ptr, i32 } |
| cleanup |
| ret void |
| |
| if.end: |
| call void @callee() |
| call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %z) |
| ret void |
| } |
| |
| declare i32 @__gxx_personality_v0(...) |
| declare i32 @__objc_personality_v0(...) |
| |
| ; CHECK: attributes [[NUW]] = { nounwind } |
| |
| !0 = !{} |