| ; RUN: opt -passes=objc-arc -S < %s | FileCheck %s |
| |
| %struct.__objcFastEnumerationState = type { i64, ptr, ptr, [5 x i64] } |
| |
| @"\01L_OBJC_METH_VAR_NAME_" = internal global [43 x i8] c"countByEnumeratingWithState:objects:count:\00", section "__TEXT,__objc_methname,cstring_literals", align 1 |
| @"\01L_OBJC_SELECTOR_REFERENCES_" = internal global ptr @"\01L_OBJC_METH_VAR_NAME_", section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip" |
| @g = common global ptr null, align 8 |
| @"\01L_OBJC_IMAGE_INFO" = internal constant [2 x i32] [i32 0, i32 16], section "__DATA, __objc_imageinfo, regular, no_dead_strip" |
| |
| declare void @callee() |
| declare ptr @returner() |
| declare ptr @llvm.objc.retainAutoreleasedReturnValue(ptr) |
| declare ptr @llvm.objc.retain(ptr) |
| declare void @llvm.objc.enumerationMutation(ptr) |
| declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1) nounwind |
| declare ptr @objc_msgSend(ptr, ptr, ...) nonlazybind |
| declare void @use(ptr) |
| declare void @llvm.objc.release(ptr) |
| declare ptr @def() |
| declare void @__crasher_block_invoke(ptr nocapture) |
| declare ptr @llvm.objc.retainBlock(ptr) |
| declare void @__crasher_block_invoke1(ptr nocapture) |
| |
| !0 = !{} |
| |
| ; Delete a nested retain+release pair. |
| |
| ; CHECK-LABEL: define void @test0( |
| ; CHECK: call ptr @llvm.objc.retain |
| ; CHECK-NOT: @llvm.objc.retain |
| ; CHECK: } |
| define void @test0(ptr %a) nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %0 = call ptr @llvm.objc.retain(ptr %a) nounwind |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %1 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp2 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call = call i64 @objc_msgSend(ptr %1, ptr %tmp2, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| %stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 1 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call, %forcoll.loopinit ], [ %call6, %forcoll.refetch ] |
| %tmp7 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp7, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ] |
| %mutationsptr3 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr3, align 8 |
| %2 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %2, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %1) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %stateitems = load ptr, ptr %stateitems.ptr, align 8 |
| %currentitem.ptr = getelementptr ptr, ptr %stateitems, i64 %forcoll.index |
| %3 = load ptr, ptr %currentitem.ptr, align 8 |
| call void @use(ptr %3) |
| %4 = add i64 %forcoll.index, 1 |
| %exitcond = icmp eq i64 %4, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp5 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call6 = call i64 @objc_msgSend(ptr %1, ptr %tmp5, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %5 = icmp eq i64 %call6, 0 |
| br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %1) nounwind |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; Delete a nested retain+release pair. |
| |
| ; CHECK-LABEL: define void @test2( |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK-NOT: @llvm.objc.retain |
| ; CHECK: } |
| define void @test2() nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %call = call ptr @returner() |
| %0 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %1 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp2 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call3 = call i64 @objc_msgSend(ptr %1, ptr %tmp2, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call3, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| %stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 1 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call3, %forcoll.loopinit ], [ %call7, %forcoll.refetch ] |
| %tmp8 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp8, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ] |
| %mutationsptr4 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr4, align 8 |
| %2 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %2, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %1) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %stateitems = load ptr, ptr %stateitems.ptr, align 8 |
| %currentitem.ptr = getelementptr ptr, ptr %stateitems, i64 %forcoll.index |
| %3 = load ptr, ptr %currentitem.ptr, align 8 |
| call void @use(ptr %3) |
| %4 = add i64 %forcoll.index, 1 |
| %exitcond = icmp eq i64 %4, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp6 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call7 = call i64 @objc_msgSend(ptr %1, ptr %tmp6, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %5 = icmp eq i64 %call7, 0 |
| br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %1) nounwind |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; Delete a nested retain+release pair. |
| |
| ; CHECK-LABEL: define void @test4( |
| ; CHECK: call ptr @llvm.objc.retain |
| ; CHECK-NOT: @llvm.objc.retain |
| ; CHECK: } |
| define void @test4() nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %tmp = load ptr, ptr @g, align 8 |
| %0 = call ptr @llvm.objc.retain(ptr %tmp) nounwind |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %1 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp4 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call = call i64 @objc_msgSend(ptr %1, ptr %tmp4, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| %stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 1 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call, %forcoll.loopinit ], [ %call8, %forcoll.refetch ] |
| %tmp9 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp9, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ] |
| %mutationsptr5 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr5, align 8 |
| %2 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %2, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %1) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %stateitems = load ptr, ptr %stateitems.ptr, align 8 |
| %currentitem.ptr = getelementptr ptr, ptr %stateitems, i64 %forcoll.index |
| %3 = load ptr, ptr %currentitem.ptr, align 8 |
| call void @use(ptr %3) |
| %4 = add i64 %forcoll.index, 1 |
| %exitcond = icmp eq i64 %4, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp7 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call8 = call i64 @objc_msgSend(ptr %1, ptr %tmp7, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %5 = icmp eq i64 %call8, 0 |
| br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %1) nounwind |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; Delete a nested retain+release pair. |
| |
| ; CHECK-LABEL: define void @test5( |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK-NOT: @llvm.objc.retain |
| ; CHECK: } |
| define void @test5() nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %call = call ptr @returner() |
| %0 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %1 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp2 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call3 = call i64 @objc_msgSend(ptr %1, ptr %tmp2, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call3, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| %stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 1 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call3, %forcoll.loopinit ], [ %call7, %forcoll.refetch ] |
| %tmp8 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp8, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ] |
| %mutationsptr4 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr4, align 8 |
| %2 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %2, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %1) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %stateitems = load ptr, ptr %stateitems.ptr, align 8 |
| %currentitem.ptr = getelementptr ptr, ptr %stateitems, i64 %forcoll.index |
| %3 = load ptr, ptr %currentitem.ptr, align 8 |
| call void @use(ptr %3) |
| %4 = add i64 %forcoll.index, 1 |
| %exitcond = icmp eq i64 %4, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp6 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call7 = call i64 @objc_msgSend(ptr %1, ptr %tmp6, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %5 = icmp eq i64 %call7, 0 |
| br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %1) nounwind |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; We handle this now due to the fact that a release just needs a post dominating |
| ; use. |
| ; |
| ; CHECK-LABEL: define void @test6( |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK-NOT: @llvm.objc.retain |
| ; CHECK: } |
| define void @test6() nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %call = call ptr @returner() |
| %0 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %1 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp2 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call3 = call i64 @objc_msgSend(ptr %1, ptr %tmp2, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call3, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| %stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 1 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call3, %forcoll.loopinit ], [ %call7, %forcoll.refetch ] |
| %tmp8 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp8, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ] |
| %mutationsptr4 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr4, align 8 |
| %2 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %2, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %1) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %stateitems = load ptr, ptr %stateitems.ptr, align 8 |
| %currentitem.ptr = getelementptr ptr, ptr %stateitems, i64 %forcoll.index |
| %3 = load ptr, ptr %currentitem.ptr, align 8 |
| call void @use(ptr %3) |
| %4 = add i64 %forcoll.index, 1 |
| %exitcond = icmp eq i64 %4, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp6 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call7 = call i64 @objc_msgSend(ptr %1, ptr %tmp6, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %5 = icmp eq i64 %call7, 0 |
| br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %1) nounwind |
| call void @callee() |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; TODO: Delete a nested retain+release pair. |
| ; The optimizer currently can't do this, because isn't isn't sophisticated enough in |
| ; reasnoning about nesting. |
| |
| ; CHECK-LABEL: define void @test7( |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK: @llvm.objc.retain |
| ; CHECK: } |
| define void @test7() nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %call = call ptr @returner() |
| %0 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind |
| call void @callee() |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %1 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp2 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call3 = call i64 @objc_msgSend(ptr %1, ptr %tmp2, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call3, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| %stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 1 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call3, %forcoll.loopinit ], [ %call7, %forcoll.refetch ] |
| %tmp8 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp8, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ] |
| %mutationsptr4 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr4, align 8 |
| %2 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %2, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %1) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %stateitems = load ptr, ptr %stateitems.ptr, align 8 |
| %currentitem.ptr = getelementptr ptr, ptr %stateitems, i64 %forcoll.index |
| %3 = load ptr, ptr %currentitem.ptr, align 8 |
| call void @use(ptr %3) |
| %4 = add i64 %forcoll.index, 1 |
| %exitcond = icmp eq i64 %4, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp6 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call7 = call i64 @objc_msgSend(ptr %1, ptr %tmp6, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %5 = icmp eq i64 %call7, 0 |
| br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %1) nounwind |
| call void @callee() |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; Delete a nested retain+release pair. |
| |
| ; CHECK-LABEL: define void @test8( |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK-NOT: @llvm.objc.retain |
| ; CHECK: } |
| define void @test8() nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %call = call ptr @returner() |
| %0 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %1 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp2 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call3 = call i64 @objc_msgSend(ptr %1, ptr %tmp2, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call3, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| %stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 1 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call3, %forcoll.loopinit ], [ %call7, %forcoll.refetch ] |
| %tmp8 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp8, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.next ] |
| %mutationsptr4 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr4, align 8 |
| %2 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %2, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %1) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %stateitems = load ptr, ptr %stateitems.ptr, align 8 |
| %currentitem.ptr = getelementptr ptr, ptr %stateitems, i64 %forcoll.index |
| %3 = load ptr, ptr %currentitem.ptr, align 8 |
| %tobool = icmp eq ptr %3, null |
| br i1 %tobool, label %forcoll.next, label %if.then |
| |
| if.then: |
| call void @callee() |
| br label %forcoll.next |
| |
| forcoll.next: |
| %4 = add i64 %forcoll.index, 1 |
| %exitcond = icmp eq i64 %4, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp6 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call7 = call i64 @objc_msgSend(ptr %1, ptr %tmp6, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %5 = icmp eq i64 %call7, 0 |
| br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %1) nounwind |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; TODO: Delete a nested retain+release pair. |
| ; The optimizer currently can't do this, because of a split loop backedge. |
| ; See test9b for the same testcase without a split backedge. |
| |
| ; CHECK-LABEL: define void @test9( |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK: call ptr @llvm.objc.retain |
| ; CHECK: } |
| define void @test9() nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %call = call ptr @returner() |
| %0 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind |
| %call1 = call ptr @returner() |
| %1 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call1) nounwind |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %2 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp3 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call4 = call i64 @objc_msgSend(ptr %2, ptr %tmp3, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call4, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call4, %forcoll.loopinit ], [ %call7, %forcoll.refetch ] |
| %tmp9 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp9, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ %phitmp, %forcoll.notmutated.forcoll.loopbody_crit_edge ], [ 1, %forcoll.loopbody.outer ] |
| %mutationsptr5 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr5, align 8 |
| %3 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %3, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %2) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %exitcond = icmp eq i64 %forcoll.index, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.notmutated.forcoll.loopbody_crit_edge |
| |
| forcoll.notmutated.forcoll.loopbody_crit_edge: |
| %phitmp = add i64 %forcoll.index, 1 |
| br label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp6 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call7 = call i64 @objc_msgSend(ptr %2, ptr %tmp6, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %4 = icmp eq i64 %call7, 0 |
| br i1 %4, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %2) nounwind |
| call void @llvm.objc.release(ptr %1) nounwind, !clang.imprecise_release !0 |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; Like test9, but without a split backedge. TODO: optimize this. |
| |
| ; CHECK-LABEL: define void @test9b( |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK: @llvm.objc.retain |
| ; CHECK: } |
| define void @test9b() nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %call = call ptr @returner() |
| %0 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind |
| %call1 = call ptr @returner() |
| %1 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call1) nounwind |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %2 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp3 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call4 = call i64 @objc_msgSend(ptr %2, ptr %tmp3, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call4, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call4, %forcoll.loopinit ], [ %call7, %forcoll.refetch ] |
| %tmp9 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp9, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ %phitmp, %forcoll.notmutated ], [ 0, %forcoll.loopbody.outer ] |
| %mutationsptr5 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr5, align 8 |
| %3 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %3, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %2) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %phitmp = add i64 %forcoll.index, 1 |
| %exitcond = icmp eq i64 %phitmp, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp6 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call7 = call i64 @objc_msgSend(ptr %2, ptr %tmp6, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %4 = icmp eq i64 %call7, 0 |
| br i1 %4, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %2) nounwind |
| call void @llvm.objc.release(ptr %1) nounwind, !clang.imprecise_release !0 |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; TODO: Delete a nested retain+release pair. |
| ; The optimizer currently can't do this, because of a split loop backedge. |
| ; See test10b for the same testcase without a split backedge. |
| |
| ; CHECK-LABEL: define void @test10( |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK: call ptr @llvm.objc.retain |
| ; CHECK: } |
| define void @test10() nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %call = call ptr @returner() |
| %0 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind |
| %call1 = call ptr @returner() |
| %1 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call1) nounwind |
| call void @callee() |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %2 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp3 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call4 = call i64 @objc_msgSend(ptr %2, ptr %tmp3, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call4, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call4, %forcoll.loopinit ], [ %call7, %forcoll.refetch ] |
| %tmp9 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp9, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ %phitmp, %forcoll.notmutated.forcoll.loopbody_crit_edge ], [ 1, %forcoll.loopbody.outer ] |
| %mutationsptr5 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr5, align 8 |
| %3 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %3, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %2) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %exitcond = icmp eq i64 %forcoll.index, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.notmutated.forcoll.loopbody_crit_edge |
| |
| forcoll.notmutated.forcoll.loopbody_crit_edge: |
| %phitmp = add i64 %forcoll.index, 1 |
| br label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp6 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call7 = call i64 @objc_msgSend(ptr %2, ptr %tmp6, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %4 = icmp eq i64 %call7, 0 |
| br i1 %4, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %2) nounwind |
| call void @llvm.objc.release(ptr %1) nounwind, !clang.imprecise_release !0 |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; Like test10, but without a split backedge. TODO: optimize this. |
| |
| ; CHECK-LABEL: define void @test10b( |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK: call ptr @llvm.objc.retainAutoreleasedReturnValue |
| ; CHECK: @llvm.objc.retain |
| ; CHECK: } |
| define void @test10b() nounwind { |
| entry: |
| %state.ptr = alloca %struct.__objcFastEnumerationState, align 8 |
| %items.ptr = alloca [16 x ptr], align 8 |
| %call = call ptr @returner() |
| %0 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind |
| %call1 = call ptr @returner() |
| %1 = call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call1) nounwind |
| call void @callee() |
| call void @llvm.memset.p0.i64(ptr align 8 %state.ptr, i8 0, i64 64, i1 false) |
| %2 = call ptr @llvm.objc.retain(ptr %0) nounwind |
| %tmp3 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call4 = call i64 @objc_msgSend(ptr %2, ptr %tmp3, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %iszero = icmp eq i64 %call4, 0 |
| br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit |
| |
| forcoll.loopinit: |
| %mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, ptr %state.ptr, i64 0, i32 2 |
| %mutationsptr = load ptr, ptr %mutationsptr.ptr, align 8 |
| %forcoll.initial-mutations = load i64, ptr %mutationsptr, align 8 |
| br label %forcoll.loopbody.outer |
| |
| forcoll.loopbody.outer: |
| %forcoll.count.ph = phi i64 [ %call4, %forcoll.loopinit ], [ %call7, %forcoll.refetch ] |
| %tmp9 = icmp ugt i64 %forcoll.count.ph, 1 |
| %umax = select i1 %tmp9, i64 %forcoll.count.ph, i64 1 |
| br label %forcoll.loopbody |
| |
| forcoll.loopbody: |
| %forcoll.index = phi i64 [ %phitmp, %forcoll.notmutated ], [ 0, %forcoll.loopbody.outer ] |
| %mutationsptr5 = load ptr, ptr %mutationsptr.ptr, align 8 |
| %statemutations = load i64, ptr %mutationsptr5, align 8 |
| %3 = icmp eq i64 %statemutations, %forcoll.initial-mutations |
| br i1 %3, label %forcoll.notmutated, label %forcoll.mutated |
| |
| forcoll.mutated: |
| call void @llvm.objc.enumerationMutation(ptr %2) |
| br label %forcoll.notmutated |
| |
| forcoll.notmutated: |
| %phitmp = add i64 %forcoll.index, 1 |
| %exitcond = icmp eq i64 %phitmp, %umax |
| br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody |
| |
| forcoll.refetch: |
| %tmp6 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8 |
| %call7 = call i64 @objc_msgSend(ptr %2, ptr %tmp6, ptr %state.ptr, ptr %items.ptr, i64 16) |
| %4 = icmp eq i64 %call7, 0 |
| br i1 %4, label %forcoll.empty, label %forcoll.loopbody.outer |
| |
| forcoll.empty: |
| call void @llvm.objc.release(ptr %2) nounwind |
| call void @llvm.objc.release(ptr %1) nounwind, !clang.imprecise_release !0 |
| call void @llvm.objc.release(ptr %0) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| ; Pointers to strong pointers can obscure provenance relationships. Be conservative |
| ; in the face of escaping pointers. rdar://12150909. |
| |
| %struct.__block_d = type { i64, i64 } |
| |
| @_NSConcreteStackBlock = external global ptr |
| @__block_d_tmp = external hidden constant { i64, i64, ptr, ptr, ptr, ptr } |
| @__block_d_tmp5 = external hidden constant { i64, i64, ptr, ptr, ptr, ptr } |
| |
| ; CHECK-LABEL: define void @test11( |
| ; CHECK: tail call ptr @llvm.objc.retain(ptr %call) [[NUW:#[0-9]+]] |
| ; CHECK: tail call ptr @llvm.objc.retain(ptr %call) [[NUW]] |
| ; CHECK: call void @llvm.objc.release(ptr %call) [[NUW]], !clang.imprecise_release !0 |
| ; CHECK: } |
| define void @test11() { |
| entry: |
| %block = alloca <{ ptr, i32, i32, ptr, ptr, ptr }>, align 8 |
| %block9 = alloca <{ ptr, i32, i32, ptr, ptr, ptr }>, align 8 |
| %call = call ptr @def(), !clang.arc.no_objc_arc_exceptions !0 |
| %foo = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block, i64 0, i32 5 |
| %block.isa = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block, i64 0, i32 0 |
| store ptr @_NSConcreteStackBlock, ptr %block.isa, align 8 |
| %block.flags = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block, i64 0, i32 1 |
| store i32 1107296256, ptr %block.flags, align 8 |
| %block.reserved = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block, i64 0, i32 2 |
| store i32 0, ptr %block.reserved, align 4 |
| %block.invoke = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block, i64 0, i32 3 |
| store ptr @__crasher_block_invoke, ptr %block.invoke, align 8 |
| %block.d = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block, i64 0, i32 4 |
| store ptr @__block_d_tmp, ptr %block.d, align 8 |
| %foo2 = tail call ptr @llvm.objc.retain(ptr %call) nounwind |
| store ptr %foo2, ptr %foo, align 8 |
| %foo5 = call ptr @llvm.objc.retainBlock(ptr %block) nounwind |
| call void @use(ptr %foo5), !clang.arc.no_objc_arc_exceptions !0 |
| call void @llvm.objc.release(ptr %foo5) nounwind |
| %strongdestroy = load ptr, ptr %foo, align 8 |
| call void @llvm.objc.release(ptr %strongdestroy) nounwind, !clang.imprecise_release !0 |
| %foo10 = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block9, i64 0, i32 5 |
| %block.isa11 = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block9, i64 0, i32 0 |
| store ptr @_NSConcreteStackBlock, ptr %block.isa11, align 8 |
| %block.flags12 = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block9, i64 0, i32 1 |
| store i32 1107296256, ptr %block.flags12, align 8 |
| %block.reserved13 = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block9, i64 0, i32 2 |
| store i32 0, ptr %block.reserved13, align 4 |
| %block.invoke14 = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block9, i64 0, i32 3 |
| store ptr @__crasher_block_invoke1, ptr %block.invoke14, align 8 |
| %block.d15 = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %block9, i64 0, i32 4 |
| store ptr @__block_d_tmp5, ptr %block.d15, align 8 |
| %foo18 = call ptr @llvm.objc.retain(ptr %call) nounwind |
| store ptr %call, ptr %foo10, align 8 |
| %foo21 = call ptr @llvm.objc.retainBlock(ptr %block9) nounwind |
| call void @use(ptr %foo21), !clang.arc.no_objc_arc_exceptions !0 |
| call void @llvm.objc.release(ptr %foo21) nounwind |
| %strongdestroy25 = load ptr, ptr %foo10, align 8 |
| call void @llvm.objc.release(ptr %strongdestroy25) nounwind, !clang.imprecise_release !0 |
| call void @llvm.objc.release(ptr %call) nounwind, !clang.imprecise_release !0 |
| ret void |
| } |
| |
| |
| ; CHECK: attributes [[NUW]] = { nounwind } |
| ; CHECK: attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: write) } |
| ; CHECK: attributes #2 = { nonlazybind } |
