diff options
Diffstat (limited to 'test/CodeGenObjCXX/arc-blocks.mm')
-rw-r--r-- | test/CodeGenObjCXX/arc-blocks.mm | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/test/CodeGenObjCXX/arc-blocks.mm b/test/CodeGenObjCXX/arc-blocks.mm index ec0c12456a..24697cf1bd 100644 --- a/test/CodeGenObjCXX/arc-blocks.mm +++ b/test/CodeGenObjCXX/arc-blocks.mm @@ -201,3 +201,123 @@ void foo1() { ^{ (void)t0; (void)t1; (void)t2; (void)t3; (void)t4; (void)t5; }; } } + +// Test that calls to @llvm.objc.retainBlock aren't emitted in some cases. + +namespace test_block_retain { + typedef void (^BlockTy)(); + + void foo1(id); + +// CHECK-LABEL: define void @_ZN17test_block_retain14initializationEP11objc_object( +// CHECK-NOT: @llvm.objc.retainBlock( + void initialization(id a) { + BlockTy b0 = ^{ foo1(a); }; + BlockTy b1 = (^{ foo1(a); }); + b0(); + b1(); + } + +// CHECK-LABEL: define void @_ZN17test_block_retain20initializationStaticEP11objc_object( +// CHECK: @llvm.objc.retainBlock( + void initializationStatic(id a) { + static BlockTy b0 = ^{ foo1(a); }; + b0(); + } + +// CHECK-LABEL: define void @_ZN17test_block_retain15initialization2EP11objc_object +// CHECK: %[[B0:.*]] = alloca void ()*, align 8 +// CHECK: %[[B1:.*]] = alloca void ()*, align 8 +// CHECK: load void ()*, void ()** %[[B0]], align 8 +// CHECK-NOT: @llvm.objc.retainBlock +// CHECK: %[[V9:.*]] = load void ()*, void ()** %[[B0]], align 8 +// CHECK: %[[V10:.*]] = bitcast void ()* %[[V9]] to i8* +// CHECK: %[[V11:.*]] = call i8* @llvm.objc.retainBlock(i8* %[[V10]]) +// CHECK: %[[V12:.*]] = bitcast i8* %[[V11]] to void ()* +// CHECK: store void ()* %[[V12]], void ()** %[[B1]], align 8 + void initialization2(id a) { + BlockTy b0 = ^{ foo1(a); }; + b0(); + BlockTy b1 = b0; // can't optimize this yet. + b1(); + } + +// CHECK-LABEL: define void @_ZN17test_block_retain10assignmentEP11objc_object( +// CHECK-NOT: @llvm.objc.retainBlock( + void assignment(id a) { + BlockTy b0; + (b0) = ^{ foo1(a); }; + b0(); + b0 = (^{ foo1(a); }); + b0(); + } + +// CHECK-LABEL: define void @_ZN17test_block_retain16assignmentStaticEP11objc_object( +// CHECK: @llvm.objc.retainBlock( + void assignmentStatic(id a) { + static BlockTy b0; + b0 = ^{ foo1(a); }; + b0(); + } + +// CHECK-LABEL: define void @_ZN17test_block_retain21assignmentConditionalEP11objc_objectb( +// CHECK: @llvm.objc.retainBlock( + void assignmentConditional(id a, bool c) { + BlockTy b0; + if (c) + // can't optimize this since 'b0' is declared in the outer scope. + b0 = ^{ foo1(a); }; + b0(); + } + +// CHECK-LABEL: define void @_ZN17test_block_retain11assignment2EP11objc_object( +// CHECK: %[[B0:.*]] = alloca void ()*, align 8 +// CHECK: %[[B1:.*]] = alloca void ()*, align 8 +// CHECK-NOT: @llvm.objc.retainBlock +// CHECK: store void ()* null, void ()** %[[B1]], align 8 +// CHECK: %[[V9:.*]] = load void ()*, void ()** %[[B0]], align 8 +// CHECK: %[[V10:.*]] = bitcast void ()* %[[V9]] to i8* +// CHECK: %[[V11:.*]] = call i8* @llvm.objc.retainBlock(i8* %[[V10]] +// CHECK: %[[V12:.*]] = bitcast i8* %[[V11]] to void ()* +// CHECK: store void ()* %[[V12]], void ()** %[[B1]], align 8 + void assignment2(id a) { + BlockTy b0 = ^{ foo1(a); }; + b0(); + BlockTy b1; + b1 = b0; // can't optimize this yet. + b1(); + } + +// We cannot remove the call to @llvm.objc.retainBlock if the variable is of type id. + +// CHECK: define void @_ZN17test_block_retain21initializationObjCPtrEP11objc_object( +// CHECK: alloca i8*, align 8 +// CHECK: %[[B0:.*]] = alloca i8*, align 8 +// CHECK: %[[BLOCK:.*]] = alloca <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>, align 8 +// CHECK: %[[V3:.*]] = bitcast <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* %[[BLOCK]] to void ()* +// CHECK: %[[V4:.*]] = bitcast void ()* %[[V3]] to i8* +// CHECK: %[[V5:.*]] = call i8* @llvm.objc.retainBlock(i8* %[[V4]]) +// CHECK: %[[V6:.*]] = bitcast i8* %[[V5]] to void ()* +// CHECK: %[[V7:.*]] = bitcast void ()* %[[V6]] to i8* +// CHECK: store i8* %[[V7]], i8** %[[B0]], align 8 + void initializationObjCPtr(id a) { + id b0 = ^{ foo1(a); }; + ((BlockTy)b0)(); + } + +// CHECK: define void @_ZN17test_block_retain17assignmentObjCPtrEP11objc_object( +// CHECK: %[[B0:.*]] = alloca void ()*, align 8 +// CHECK: %[[B1:.*]] = alloca i8*, align 8 +// CHECK: %[[V4:.*]] = load void ()*, void ()** %[[B0]], align 8 +// CHECK: %[[V5:.*]] = bitcast void ()* %[[V4]] to i8* +// CHECK: %[[V6:.*]] = call i8* @llvm.objc.retainBlock(i8* %[[V5]]) +// CHECK: %[[V7:.*]] = bitcast i8* %[[V6]] to void ()* +// CHECK: %[[V8:.*]] = bitcast void ()* %[[V7]] to i8* +// CHECK: store i8* %[[V8]], i8** %[[B1]], align 8 + void assignmentObjCPtr(id a) { + BlockTy b0 = ^{ foo1(a); }; + id b1; + b1 = b0; + ((BlockTy)b1)(); + } +} |