// RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -fblocks -Wno-strict-prototypes -o - %s | FileCheck --check-prefix=CHECK --check-prefix=SIG_STR %s
// RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -fblocks -Wno-strict-prototypes -fdisable-block-signature-string -o - %s | FileCheck --check-prefix=CHECK --check-prefix=NO_SIG_STR %s
// Check that there is only one capture (20o) in the copy/dispose function
// names.
// SIG_STR: @[[STR3:.*]] = private unnamed_addr constant [6 x i8] c"v4@?0\00", align 1
// SIG_STR: @[[BLOCK_DESCRIPTOR0:"__block_descriptor_28_4_20o_e5_v4\\01\?0l"]] = linkonce_odr hidden unnamed_addr constant { i32, i32, ptr, ptr, ptr, i32 } { i32 0, i32 28, ptr @__copy_helper_block_4_20o, ptr @__destroy_helper_block_4_20o, ptr @[[STR3]], i32 512 },
// NO_SIG_STR: @[[BLOCK_DESCRIPTOR0:__block_descriptor_28_4_20o_e0_l]] = linkonce_odr hidden unnamed_addr constant { i32, i32, ptr, ptr, ptr, i32 } { i32 0, i32 28, ptr @__copy_helper_block_4_20o, ptr @__destroy_helper_block_4_20o, ptr null, i32 512 },
void (^gb0)(void);
struct S {
void (^F)(struct S*);
} P;
@interface T
- (int)foo: (T* (^)(T*)) x;
@end
void foo(T *P) {
[P foo: 0];
}
@interface A
-(void) im0;
@end
// CHECK: define internal i32 @"__8-[A im0]_block_invoke"(
@implementation A
-(void) im0 {
(void) ^{ return 1; }();
}
@end
@interface B : A @end
@implementation B
-(void) im1 {
^(void) { [self im0]; }();
}
-(void) im2 {
^{ [super im0]; }();
}
-(void) im3 {
^{ ^{[super im0];}(); }();
}
@end
// In-depth test for the initialization of a __weak __block variable.
@interface Test2 -(void) destroy; @end
void test2(Test2 *x) {
extern void test2_helper(void (^)(void));
// CHECK-LABEL: define{{.*}} void @test2(
// CHECK: [[X:%.*]] = alloca ptr,
// CHECK-NEXT: [[WEAKX:%.*]] = alloca [[WEAK_T:%.*]],
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK-NEXT: store ptr
// isa=1 for weak byrefs.
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 0
// CHECK-NEXT: store ptr inttoptr (i32 1 to ptr), ptr [[T0]]
// Forwarding.
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 1
// CHECK-NEXT: store ptr [[WEAKX]], ptr [[T1]]
// Flags. This is just BLOCK_HAS_COPY_DISPOSE BLOCK_BYREF_LAYOUT_UNRETAINED
// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 2
// CHECK-NEXT: store i32 1375731712, ptr [[T2]]
// Size.
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 3
// CHECK-NEXT: store i32 28, ptr [[T3]]
// Copy and dispose helpers.
// CHECK-NEXT: [[T4:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 4
// CHECK-NEXT: store ptr @__Block_byref_object_copy_{{.*}}, ptr [[T4]]
// CHECK-NEXT: [[T5:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 5
// CHECK-NEXT: store ptr @__Block_byref_object_dispose_{{.*}}, ptr [[T5]]
// Actually capture the value.
// CHECK-NEXT: [[T6:%.*]] = getelementptr inbounds nuw [[WEAK_T]], ptr [[WEAKX]], i32 0, i32 6
// CHECK-NEXT: [[CAPTURE:%.*]] = load ptr, ptr [[X]]
// CHECK-NEXT: store ptr [[CAPTURE]], ptr [[T6]]
// Then we initialize the block, blah blah blah.
// CHECK: call void @test2_helper(
// Finally, kill the variable with BLOCK_FIELD_IS_BYREF.
// CHECK: call void @_Block_object_dispose(ptr [[WEAKX]], i32 24)
__attribute__((objc_gc(weak))) __block Test2 *weakX = x;
test2_helper(^{ [weakX destroy]; });
}
// In the test above, check that the use in the invocation function
// doesn't require a read barrier.
// CHECK-LABEL: define internal void @__test2_block_invoke
// CHECK: [[T0:%.*]] = getelementptr inbounds nuw [[BLOCK_T]], ptr {{%.*}}, i32 0, i32 5
// CHECK-NEXT: [[T1:%.*]] = load ptr, ptr [[T0]]
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds nuw [[WEAK_T]]{{.*}}, ptr [[T1]], i32 0, i32 1
// CHECK-NEXT: [[T4:%.*]] = load ptr, ptr [[T3]]
// CHECK-NEXT: [[WEAKX:%.*]] = getelementptr inbounds nuw [[WEAK_T]]{{.*}}, ptr [[T4]], i32 0, i32 6
// CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[WEAKX]], align 4
// Make sure that ... is appropriately positioned in a block call.
void test3(void (^block)(int, ...)) {
block(0, 1, 2, 3);
}
// CHECK-LABEL: define{{.*}} void @test3(
// CHECK: [[BLOCK:%.*]] = alloca ptr, align 4
// CHECK-NEXT: store ptr
// CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[BLOCK]], align 4
// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds nuw [[BLOCK_T:%.*]], ptr [[T0]], i32 0, i32 3
// CHECK-NEXT: [[T4:%.*]] = load ptr, ptr [[T2]]
// CHECK-NEXT: call void (ptr, i32, ...) [[T4]](ptr noundef [[T0]], i32 noundef 0, i32 noundef 1, i32 noundef 2, i32 noundef 3)
// CHECK-NEXT: ret void
void test4(void (^block)()) {
block(0, 1, 2, 3);
}
// CHECK-LABEL: define{{.*}} void @test4(
// CHECK: [[BLOCK:%.*]] = alloca ptr, align 4
// CHECK-NEXT: store ptr
// CHECK-NEXT: [[T0:%.*]] = load ptr, ptr [[BLOCK]], align 4
// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds nuw [[BLOCK_T:%.*]], ptr [[T0]], i32 0, i32 3
// CHECK-NEXT: [[T4:%.*]] = load ptr, ptr [[T2]]
// CHECK-NEXT: call void [[T4]](ptr noundef [[T0]], i32 noundef 0, i32 noundef 1, i32 noundef 2, i32 noundef 3)
// CHECK-NEXT: ret void
void test5(A *a) {
__unsafe_unretained A *t = a;
gb0 = ^{ (void)a; (void)t; };
}
// CHECK-LABEL: define void @test5(
// CHECK: %[[FLAGS:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 1
// SIG_STR: store i32 -1040187392, ptr %[[FLAGS]], align 4
// NO_SIG_STR: store i32 -2113929216, ptr %[[FLAGS]], align 4
// CHECK: %[[V0:.*]] = getelementptr inbounds nuw <{ ptr, i32, i32, ptr, ptr, ptr, ptr }>, ptr %{{.*}}, i32 0, i32 4
// CHECK: store ptr @[[BLOCK_DESCRIPTOR0]], ptr %[[V0]],
void test6(id a, long long b) {
void (^block)() = ^{ (void)b; (void)a; };
}
// Check that the block literal doesn't have two fields for capture 'a'.
// CHECK-LABEL: define void @test6(
// CHECK: alloca <{ ptr, i32, i32, ptr, ptr, ptr, i64 }>,
Codebase Browser
llvm