forked from OSchip/llvm-project
162 lines
6.7 KiB
Objective-C
162 lines
6.7 KiB
Objective-C
// RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -fblocks -o - %s | FileCheck %s
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// CHECK: %[[STRUCT_BLOCK_DESCRIPTOR:.*]] = type { i32, i32 }
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// Check that there is only one capture (20o) in the copy/dispose function
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// names.
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// CHECK: @[[BLOCK_DESCRIPTOR0:.*]] = linkonce_odr hidden unnamed_addr constant { i32, i32, i8*, i8*, i8*, i32 } { i32 0, i32 28, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_4_20o to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_4_20o to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @{{.*}}, i32 0, i32 0), i32 512 },
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void (^gb0)(void);
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// test1. All of this is somehow testing rdar://6676764
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struct S {
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void (^F)(struct S*);
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} P;
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@interface T
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- (int)foo: (T* (^)(T*)) x;
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@end
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void foo(T *P) {
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[P foo: 0];
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}
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@interface A
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-(void) im0;
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@end
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// CHECK: define internal i32 @"__8-[A im0]_block_invoke"(
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@implementation A
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-(void) im0 {
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(void) ^{ return 1; }();
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}
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@end
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@interface B : A @end
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@implementation B
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-(void) im1 {
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^(void) { [self im0]; }();
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}
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-(void) im2 {
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^{ [super im0]; }();
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}
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-(void) im3 {
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^{ ^{[super im0];}(); }();
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}
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@end
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// rdar://problem/9006315
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// In-depth test for the initialization of a __weak __block variable.
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@interface Test2 -(void) destroy; @end
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void test2(Test2 *x) {
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extern void test2_helper(void (^)(void));
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// CHECK-LABEL: define{{.*}} void @test2(
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// CHECK: [[X:%.*]] = alloca [[TEST2:%.*]]*,
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// CHECK-NEXT: [[WEAKX:%.*]] = alloca [[WEAK_T:%.*]],
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// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
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// CHECK-NEXT: store [[TEST2]]*
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// isa=1 for weak byrefs.
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// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[WEAK_T]], [[WEAK_T]]* [[WEAKX]], i32 0, i32 0
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// CHECK-NEXT: store i8* inttoptr (i32 1 to i8*), i8** [[T0]]
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// Forwarding.
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// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[WEAK_T]], [[WEAK_T]]* [[WEAKX]], i32 0, i32 1
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// CHECK-NEXT: store [[WEAK_T]]* [[WEAKX]], [[WEAK_T]]** [[T1]]
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// Flags. This is just BLOCK_HAS_COPY_DISPOSE BLOCK_BYREF_LAYOUT_UNRETAINED
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// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[WEAK_T]], [[WEAK_T]]* [[WEAKX]], i32 0, i32 2
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// CHECK-NEXT: store i32 1375731712, i32* [[T2]]
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// Size.
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// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds [[WEAK_T]], [[WEAK_T]]* [[WEAKX]], i32 0, i32 3
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// CHECK-NEXT: store i32 28, i32* [[T3]]
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// Copy and dispose helpers.
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// CHECK-NEXT: [[T4:%.*]] = getelementptr inbounds [[WEAK_T]], [[WEAK_T]]* [[WEAKX]], i32 0, i32 4
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// CHECK-NEXT: store i8* bitcast (void (i8*, i8*)* @__Block_byref_object_copy_{{.*}} to i8*), i8** [[T4]]
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// CHECK-NEXT: [[T5:%.*]] = getelementptr inbounds [[WEAK_T]], [[WEAK_T]]* [[WEAKX]], i32 0, i32 5
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// CHECK-NEXT: store i8* bitcast (void (i8*)* @__Block_byref_object_dispose_{{.*}} to i8*), i8** [[T5]]
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// Actually capture the value.
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// CHECK-NEXT: [[T6:%.*]] = getelementptr inbounds [[WEAK_T]], [[WEAK_T]]* [[WEAKX]], i32 0, i32 6
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// CHECK-NEXT: [[CAPTURE:%.*]] = load [[TEST2]]*, [[TEST2]]** [[X]]
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// CHECK-NEXT: store [[TEST2]]* [[CAPTURE]], [[TEST2]]** [[T6]]
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// Then we initialize the block, blah blah blah.
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// CHECK: call void @test2_helper(
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// Finally, kill the variable with BLOCK_FIELD_IS_BYREF.
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// CHECK: [[T0:%.*]] = bitcast [[WEAK_T]]* [[WEAKX]] to i8*
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// CHECK: call void @_Block_object_dispose(i8* [[T0]], i32 24)
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__attribute__((objc_gc(weak))) __block Test2 *weakX = x;
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test2_helper(^{ [weakX destroy]; });
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}
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// rdar://problem/9124263
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// In the test above, check that the use in the invocation function
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// doesn't require a read barrier.
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// CHECK-LABEL: define internal void @__test2_block_invoke
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// CHECK: [[BLOCK:%.*]] = bitcast i8* {{%.*}} to [[BLOCK_T]]*
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// CHECK-NOT: bitcast
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// CHECK: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
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// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[T0]]
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// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to [[WEAK_T]]{{.*}}*
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// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds [[WEAK_T]]{{.*}}, [[WEAK_T]]{{.*}}* [[T2]], i32 0, i32 1
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// CHECK-NEXT: [[T4:%.*]] = load [[WEAK_T]]{{.*}}*, [[WEAK_T]]{{.*}}** [[T3]]
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// CHECK-NEXT: [[WEAKX:%.*]] = getelementptr inbounds [[WEAK_T]]{{.*}}, [[WEAK_T]]{{.*}}* [[T4]], i32 0, i32 6
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// CHECK-NEXT: [[T0:%.*]] = load [[TEST2]]*, [[TEST2]]** [[WEAKX]], align 4
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// rdar://problem/12722954
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// Make sure that ... is appropriately positioned in a block call.
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void test3(void (^block)(int, ...)) {
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block(0, 1, 2, 3);
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}
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// CHECK-LABEL: define{{.*}} void @test3(
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// CHECK: [[BLOCK:%.*]] = alloca void (i32, ...)*, align 4
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// CHECK-NEXT: store void (i32, ...)*
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// CHECK-NEXT: [[T0:%.*]] = load void (i32, ...)*, void (i32, ...)** [[BLOCK]], align 4
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// CHECK-NEXT: [[T1:%.*]] = bitcast void (i32, ...)* [[T0]] to [[BLOCK_T:%.*]]*
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// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[T1]], i32 0, i32 3
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// CHECK-NEXT: [[T3:%.*]] = bitcast [[BLOCK_T]]* [[T1]] to i8*
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// CHECK-NEXT: [[T4:%.*]] = load i8*, i8** [[T2]]
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// CHECK-NEXT: [[T5:%.*]] = bitcast i8* [[T4]] to void (i8*, i32, ...)*
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// CHECK-NEXT: call void (i8*, i32, ...) [[T5]](i8* noundef [[T3]], i32 noundef 0, i32 noundef 1, i32 noundef 2, i32 noundef 3)
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// CHECK-NEXT: ret void
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void test4(void (^block)()) {
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block(0, 1, 2, 3);
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}
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// CHECK-LABEL: define{{.*}} void @test4(
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// CHECK: [[BLOCK:%.*]] = alloca void (...)*, align 4
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// CHECK-NEXT: store void (...)*
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// CHECK-NEXT: [[T0:%.*]] = load void (...)*, void (...)** [[BLOCK]], align 4
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// CHECK-NEXT: [[T1:%.*]] = bitcast void (...)* [[T0]] to [[BLOCK_T:%.*]]*
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// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[T1]], i32 0, i32 3
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// CHECK-NEXT: [[T3:%.*]] = bitcast [[BLOCK_T]]* [[T1]] to i8*
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// CHECK-NEXT: [[T4:%.*]] = load i8*, i8** [[T2]]
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// CHECK-NEXT: [[T5:%.*]] = bitcast i8* [[T4]] to void (i8*, i32, i32, i32, i32)*
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// CHECK-NEXT: call void [[T5]](i8* noundef [[T3]], i32 noundef 0, i32 noundef 1, i32 noundef 2, i32 noundef 3)
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// CHECK-NEXT: ret void
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void test5(A *a) {
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__unsafe_unretained A *t = a;
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gb0 = ^{ (void)a; (void)t; };
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}
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// CHECK-LABEL: define void @test5(
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// CHECK: %[[V0:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, {{.*}}*, {{.*}}* }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, {{.*}}*, {{.*}}* }>* %{{.*}}, i32 0, i32 4
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// CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i32, i32, i8*, i8*, i8*, i32 }* @[[BLOCK_DESCRIPTOR0]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[V0]],
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void test6(id a, long long b) {
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void (^block)() = ^{ (void)b; (void)a; };
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}
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// Check that the block literal doesn't have two fields for capture 'a'.
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// CHECK-LABEL: define void @test6(
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// CHECK: alloca <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i64 }>,
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