caio/clang-p2996
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
c6c7bfc4d2bc37f55f57504c19d47deb7645dd76
clang-p2996/clang/test/CodeGenObjC/arc-blocks.m
Akira Hatanaka 2ec36f08a6 [CodeGen] Merge identical block descriptor global variables. 
Currently, clang generates a new block descriptor global variable for
each new block literal. This commit merges block descriptors that are
identical inside and across translation units using the same approach
taken in r339438.

To enable merging identical block descriptors, the size and signature of
the block and information about the captures are encoded into the name
of the block descriptor variable. Also, the block descriptor variable is
marked as linkonce_odr and unnamed_addr.

rdar://problem/42640703

Differential Revision: https://reviews.llvm.org/D50783

llvm-svn: 340041
2018-08-17 15:46:07 +00:00

737 lines
36 KiB
Objective-C
Raw Blame History

// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-passes -o - %s | FileCheck -check-prefix=CHECK -check-prefix=CHECK-COMMON %s
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-UNOPT -check-prefix=CHECK-COMMON %s
// CHECK-COMMON: %[[STRUCT_BLOCK_DESCRIPTOR:.*]] = type { i64, i64 }
// CHECK-COMMON: @[[BLOCK_DESCRIPTOR_TMP44:.*]] = linkonce_odr hidden unnamed_addr constant { i64, i64, i8*, i8*, i8*, i64 } { i64 0, i64 40, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_8_32s to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_8_32s to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @{{.*}}, i32 0, i32 0), i64 256 }, align 8
// CHECK-COMMON: @[[BLOCK_DESCRIPTOR_TMP9:.*]] = linkonce_odr hidden unnamed_addr constant { i64, i64, i8*, i8*, i8*, i64 } { i64 0, i64 40, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_8_32r to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_8_32r to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @{{.*}}, i32 0, i32 0), i64 16 }, align 8
// CHECK-COMMON: @[[BLOCK_DESCRIPTOR_TMP46:.*]] = linkonce_odr hidden unnamed_addr constant { i64, i64, i8*, i8*, i8*, i8* } { i64 0, i64 48, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_8_32s to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_8_32s to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @{{.*}}, i32 0, i32 0), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @{{.*}}, i32 0, i32 0) }, align 8
// CHECK-COMMON: @[[BLOCK_DESCRIPTOR_TMP48:.*]] = linkonce_odr hidden unnamed_addr constant { i64, i64, i8*, i8*, i8*, i64 } { i64 0, i64 40, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_8_32b to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_8_32s to i8*), i8* getelementptr inbounds ([9 x i8], [9 x i8]* @{{.*}}, i32 0, i32 0), i64 256 }, align 8
// This shouldn't crash.
void test0(id (^maker)(void)) {
maker();
}
int (^test1(int x))(void) {
// CHECK-LABEL: define i32 ()* @test1(
// CHECK: [[X:%.*]] = alloca i32,
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK-NEXT: store i32 {{%.*}}, i32* [[X]]
// CHECK: [[T0:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to i32 ()*
// CHECK-NEXT: [[T1:%.*]] = bitcast i32 ()* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainBlock(i8* [[T1]]) [[NUW:#[0-9]+]]
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to i32 ()*
// CHECK-NEXT: [[T4:%.*]] = bitcast i32 ()* [[T3]] to i8*
// CHECK-NEXT: [[T5:%.*]] = tail call i8* @objc_autoreleaseReturnValue(i8* [[T4]]) [[NUW]]
// CHECK-NEXT: [[T6:%.*]] = bitcast i8* [[T5]] to i32 ()*
// CHECK-NEXT: ret i32 ()* [[T6]]
return ^{ return x; };
}
void test2(id x) {
// CHECK-LABEL: define void @test2(
// CHECK: [[X:%.*]] = alloca i8*,
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK-NEXT: [[PARM:%.*]] = call i8* @objc_retain(i8* {{%.*}})
// CHECK-NEXT: store i8* [[PARM]], i8** [[X]]
// CHECK-NEXT: [[SLOTREL:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]],
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[SLOT]],
// CHECK-NEXT: bitcast
// CHECK-NEXT: call void @test2_helper(
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[SLOTREL]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) [[NUW]], !clang.imprecise_release
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) [[NUW]], !clang.imprecise_release
// CHECK-NEXT: ret void
extern void test2_helper(id (^)(void));
test2_helper(^{ return x; });
// CHECK: define linkonce_odr hidden void @__copy_helper_block_8_32s(i8*, i8*) unnamed_addr #{{[0-9]+}} {
// CHECK: [[T0:%.*]] = load i8*, i8**
// CHECK-NEXT: [[SRC:%.*]] = bitcast i8* [[T0]] to [[BLOCK_T]]*
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8**
// CHECK-NEXT: [[DST:%.*]] = bitcast i8* [[T0]] to [[BLOCK_T]]*
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[SRC]], i32 0, i32 5
// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[T0]]
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]]) [[NUW]]
// CHECK-NEXT: ret void
// CHECK: define linkonce_odr hidden void @__destroy_helper_block_8_32s(i8*) unnamed_addr #{{[0-9]+}} {
// CHECK: [[T0:%.*]] = load i8*, i8**
// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[BLOCK_T]]*
// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[T1]], i32 0, i32 5
// CHECK-NEXT: [[T3:%.*]] = load i8*, i8** [[T2]]
// CHECK-NEXT: call void @objc_release(i8* [[T3]])
// CHECK-NEXT: ret void
}
void test3(void (^sink)(id*)) {
__strong id strong;
sink(&strong);
// CHECK-LABEL: define void @test3(
// CHECK: [[SINK:%.*]] = alloca void (i8**)*
// CHECK-NEXT: [[STRONG:%.*]] = alloca i8*
// CHECK-NEXT: [[TEMP:%.*]] = alloca i8*
// CHECK-NEXT: bitcast void (i8**)* {{%.*}} to i8*
// CHECK-NEXT: call i8* @objc_retain(
// CHECK-NEXT: bitcast i8*
// CHECK-NEXT: store void (i8**)* {{%.*}}, void (i8**)** [[SINK]]
// CHECK-NEXT: [[STRONGPTR1:%.*]] = bitcast i8** [[STRONG]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[STRONGPTR1]])
// CHECK-NEXT: store i8* null, i8** [[STRONG]]
// CHECK-NEXT: load void (i8**)*, void (i8**)** [[SINK]]
// CHECK-NEXT: bitcast
// CHECK-NEXT: getelementptr
// CHECK-NEXT: [[BLOCK:%.*]] = bitcast
// CHECK-NEXT: [[V:%.*]] = load i8*, i8** [[STRONG]]
// CHECK-NEXT: store i8* [[V]], i8** [[TEMP]]
// CHECK-NEXT: [[F0:%.*]] = load i8*, i8**
// CHECK-NEXT: [[F1:%.*]] = bitcast i8* [[F0]] to void (i8*, i8**)*
// CHECK-NEXT: call void [[F1]](i8* [[BLOCK]], i8** [[TEMP]])
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[TEMP]]
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
// CHECK-NEXT: call void (...) @clang.arc.use(i8* [[V]]) [[NUW]]
// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[STRONG]]
// CHECK-NEXT: store i8* [[T1]], i8** [[STRONG]]
// CHECK-NEXT: call void @objc_release(i8* [[T2]])
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[STRONG]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: [[STRONGPTR2:%.*]] = bitcast i8** [[STRONG]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[STRONGPTR2]])
// CHECK-NEXT: load void (i8**)*, void (i8**)** [[SINK]]
// CHECK-NEXT: bitcast
// CHECK-NEXT: call void @objc_release
// CHECK-NEXT: ret void
}
void test4(void) {
id test4_source(void);
void test4_helper(void (^)(void));
__block id var = test4_source();
test4_helper(^{ var = 0; });
// CHECK-LABEL: define void @test4()
// CHECK: [[VAR:%.*]] = alloca [[BYREF_T:%.*]],
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 2
// 0x02000000 - has copy/dispose helpers strong
// CHECK-NEXT: store i32 838860800, i32* [[T0]]
// CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 6
// CHECK-NEXT: [[T0:%.*]] = call i8* @test4_source()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[SLOT]]
// CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 6
// 0x42800000 - has signature, copy/dispose helpers, as well as BLOCK_HAS_EXTENDED_LAYOUT
// CHECK: store i32 -1040187392,
// CHECK: [[T0:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
// CHECK-NEXT: store i8* [[T0]], i8**
// CHECK: call void @test4_helper(
// CHECK: [[T0:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
// CHECK-NEXT: call void @_Block_object_dispose(i8* [[T0]], i32 8)
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[SLOT]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK: ret void
// CHECK-LABEL: define internal void @__Block_byref_object_copy_(i8*, i8*) #{{[0-9]+}} {
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
// CHECK-NEXT: load i8*, i8**
// CHECK-NEXT: bitcast i8* {{%.*}} to [[BYREF_T]]*
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[T1]]
// CHECK-NEXT: store i8* [[T2]], i8** [[T0]]
// CHECK-NEXT: store i8* null, i8** [[T1]]
// CHECK-LABEL: define internal void @__Block_byref_object_dispose_(i8*) #{{[0-9]+}} {
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[T0]]
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// CHECK-LABEL: define internal void @__test4_block_invoke
// CHECK: [[SLOT:%.*]] = getelementptr inbounds {{.*}}, i32 0, i32 6
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[SLOT]], align 8
// CHECK-NEXT: store i8* null, i8** [[SLOT]],
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: ret void
// CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_8_32r(i8*, i8*) unnamed_addr #{{[0-9]+}} {
// CHECK: call void @_Block_object_assign(i8* {{%.*}}, i8* {{%.*}}, i32 8)
// CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_8_32r(i8*) unnamed_addr #{{[0-9]+}} {
// CHECK: call void @_Block_object_dispose(i8* {{%.*}}, i32 8)
}
void test5(void) {
extern id test5_source(void);
void test5_helper(void (^)(void));
__unsafe_unretained id var = test5_source();
test5_helper(^{ (void) var; });
// CHECK-LABEL: define void @test5()
// CHECK: [[VAR:%.*]] = alloca i8*
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK-NEXT: [[VARPTR1:%.*]] = bitcast i8** [[VAR]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[VARPTR1]])
// CHECK: [[T0:%.*]] = call i8* @test5_source()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[VAR]],
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// 0x40800000 - has signature but no copy/dispose, as well as BLOCK_HAS_EXTENDED_LAYOUT
// CHECK: store i32 -1073741824, i32*
// CHECK: [[CAPTURE:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[VAR]]
// CHECK-NEXT: store i8* [[T0]], i8** [[CAPTURE]]
// CHECK-NEXT: [[T0:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to
// CHECK: call void @test5_helper
// CHECK-NEXT: [[VARPTR2:%.*]] = bitcast i8** [[VAR]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[VARPTR2]])
// CHECK-NEXT: ret void
}
void test6(void) {
id test6_source(void);
void test6_helper(void (^)(void));
__block __weak id var = test6_source();
test6_helper(^{ var = 0; });
// CHECK-LABEL: define void @test6()
// CHECK: [[VAR:%.*]] = alloca [[BYREF_T:%.*]],
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK-NEXT: [[VARPTR1:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 48, i8* [[VARPTR1]])
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 2
// 0x02000000 - has copy/dispose helpers weak
// CHECK-NEXT: store i32 1107296256, i32* [[T0]]
// CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 6
// CHECK-NEXT: [[T0:%.*]] = call i8* @test6_source()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: call i8* @objc_initWeak(i8** [[SLOT]], i8* [[T1]])
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[VAR]], i32 0, i32 6
// 0x42800000 - has signature, copy/dispose helpers, as well as BLOCK_HAS_EXTENDED_LAYOUT
// CHECK: store i32 -1040187392,
// CHECK: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8* }>* %{{.*}}, i32 0, i32 4
// CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8*, i8*, i64 }* @[[BLOCK_DESCRIPTOR_TMP9]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8
// CHECK: [[T0:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
// CHECK-NEXT: store i8* [[T0]], i8**
// CHECK: call void @test6_helper(
// CHECK: [[T0:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
// CHECK-NEXT: call void @_Block_object_dispose(i8* [[T0]], i32 8)
// CHECK-NEXT: call void @objc_destroyWeak(i8** [[SLOT]])
// CHECK-NEXT: [[VARPTR2:%.*]] = bitcast [[BYREF_T]]* [[VAR]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 48, i8* [[VARPTR2]])
// CHECK-NEXT: ret void
// CHECK-LABEL: define internal void @__Block_byref_object_copy_.{{[0-9]+}}(i8*, i8*) #{{[0-9]+}} {
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
// CHECK-NEXT: load i8*, i8**
// CHECK-NEXT: bitcast i8* {{%.*}} to [[BYREF_T]]*
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
// CHECK-NEXT: call void @objc_moveWeak(i8** [[T0]], i8** [[T1]])
// CHECK-LABEL: define internal void @__Block_byref_object_dispose_.{{[0-9]+}}(i8*) #{{[0-9]+}} {
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* {{%.*}}, i32 0, i32 6
// CHECK-NEXT: call void @objc_destroyWeak(i8** [[T0]])
// CHECK-LABEL: define internal void @__test6_block_invoke
// CHECK: [[SLOT:%.*]] = getelementptr inbounds {{.*}}, i32 0, i32 6
// CHECK-NEXT: call i8* @objc_storeWeak(i8** [[SLOT]], i8* null)
// CHECK-NEXT: ret void
}
void test7(void) {
id test7_source(void);
void test7_helper(void (^)(void));
void test7_consume(id);
__weak id var = test7_source();
test7_helper(^{ test7_consume(var); });
// CHECK-LABEL: define void @test7()
// CHECK: [[VAR:%.*]] = alloca i8*,
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK: [[T0:%.*]] = call i8* @test7_source()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: call i8* @objc_initWeak(i8** [[VAR]], i8* [[T1]])
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// 0x42800000 - has signature, copy/dispose helpers, as well as BLOCK_HAS_EXTENDED_LAYOUT
// CHECK: store i32 -1040187392,
// CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK-NEXT: call void @objc_copyWeak(i8** [[SLOT]], i8** [[VAR]])
// CHECK: call void @test7_helper(
// CHECK-NEXT: call void @objc_destroyWeak(i8** {{%.*}})
// CHECK-NEXT: call void @objc_destroyWeak(i8** [[VAR]])
// CHECK: ret void
// CHECK-LABEL: define internal void @__test7_block_invoke
// CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* {{%.*}}, i32 0, i32 5
// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_loadWeakRetained(i8** [[SLOT]])
// CHECK-NEXT: call void @test7_consume(i8* [[T0]])
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK: ret void
// CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_8_32w(i8*, i8*) unnamed_addr #{{[0-9]+}} {
// CHECK: getelementptr
// CHECK-NEXT: getelementptr
// CHECK-NEXT: call void @objc_copyWeak(
// CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_8_32w(i8*) unnamed_addr #{{[0-9]+}} {
// CHECK: getelementptr
// CHECK-NEXT: call void @objc_destroyWeak(
}
@interface Test8 @end
@implementation Test8
- (void) test {
// CHECK: define internal void @"\01-[Test8 test]"
// CHECK: [[SELF:%.*]] = alloca [[TEST8:%.*]]*,
// CHECK-NEXT: alloca i8*
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK: store
// CHECK-NEXT: store
// CHECK: [[D0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK-NEXT: [[T1:%.*]] = load [[TEST8]]*, [[TEST8]]** [[SELF]],
// CHECK-NEXT: store %0* [[T1]], %0** [[T0]]
// CHECK-NEXT: bitcast [[BLOCK_T]]* [[BLOCK]] to
// CHECK: call void @test8_helper(
// CHECK-NEXT: [[T2:%.*]] = load [[TEST8]]*, [[TEST8]]** [[D0]]
// CHECK-NEXT: call void (...) @clang.arc.use([[TEST8]]* [[T2]])
// CHECK: ret void
extern void test8_helper(void (^)(void));
test8_helper(^{ (void) self; });
}
@end
id test9(void) {
typedef id __attribute__((ns_returns_retained)) blocktype(void);
extern void test9_consume_block(blocktype^);
return ^blocktype {
extern id test9_produce(void);
return test9_produce();
}();
// CHECK-LABEL: define i8* @test9(
// CHECK: load i8*, i8** getelementptr
// CHECK-NEXT: bitcast i8*
// CHECK-NEXT: call i8*
// CHECK-NEXT: tail call i8* @objc_autoreleaseReturnValue
// CHECK-NEXT: ret i8*
// CHECK: call i8* @test9_produce()
// CHECK-NEXT: call i8* @objc_retain
// CHECK-NEXT: ret i8*
}
// rdar://problem/9814099
// Test that we correctly initialize __block variables
// when the initialization captures the variable.
void test10a(void) {
__block void (^block)(void) = ^{ block(); };
// CHECK-LABEL: define void @test10a()
// CHECK: [[BYREF:%.*]] = alloca [[BYREF_T:%.*]],
// Zero-initialization before running the initializer.
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 6
// CHECK-NEXT: store void ()* null, void ()** [[T0]], align 8
// Run the initializer as an assignment.
// CHECK: [[T0:%.*]] = bitcast void ()* {{%.*}} to i8*
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainBlock(i8* [[T0]])
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to void ()*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 1
// CHECK-NEXT: [[T4:%.*]] = load [[BYREF_T]]*, [[BYREF_T]]** [[T3]]
// CHECK-NEXT: [[T5:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[T4]], i32 0, i32 6
// CHECK-NEXT: [[T6:%.*]] = load void ()*, void ()** [[T5]], align 8
// CHECK-NEXT: store void ()* {{%.*}}, void ()** [[T5]], align 8
// CHECK-NEXT: [[T7:%.*]] = bitcast void ()* [[T6]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T7]])
// Destroy at end of function.
// CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 6
// CHECK-NEXT: [[T0:%.*]] = bitcast [[BYREF_T]]* [[BYREF]] to i8*
// CHECK-NEXT: call void @_Block_object_dispose(i8* [[T0]], i32 8)
// CHECK-NEXT: [[T1:%.*]] = load void ()*, void ()** [[SLOT]]
// CHECK-NEXT: [[T2:%.*]] = bitcast void ()* [[T1]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T2]])
// CHECK: ret void
}
// <rdar://problem/10402698>: do this copy and dispose with
// objc_retainBlock/release instead of _Block_object_assign/destroy.
// We can also use _Block_object_assign/destroy with
// BLOCK_FIELD_IS_BLOCK as long as we don't pass BLOCK_BYREF_CALLER.
// CHECK-LABEL: define internal void @__Block_byref_object_copy_.{{[0-9]+}}(i8*, i8*) #{{[0-9]+}} {
// CHECK: [[D0:%.*]] = load i8*, i8** {{%.*}}
// CHECK-NEXT: [[D1:%.*]] = bitcast i8* [[D0]] to [[BYREF_T]]*
// CHECK-NEXT: [[D2:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[D1]], i32 0, i32 6
// CHECK-NEXT: [[S0:%.*]] = load i8*, i8** {{%.*}}
// CHECK-NEXT: [[S1:%.*]] = bitcast i8* [[S0]] to [[BYREF_T]]*
// CHECK-NEXT: [[S2:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[S1]], i32 0, i32 6
// CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[S2]], align 8
// CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainBlock(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*
// CHECK-NEXT: store void ()* [[T3]], void ()** [[D2]], align 8
// CHECK: ret void
// CHECK-LABEL: define internal void @__Block_byref_object_dispose_.{{[0-9]+}}(i8*) #{{[0-9]+}} {
// CHECK: [[T0:%.*]] = load i8*, i8** {{%.*}}
// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[BYREF_T]]*
// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[T1]], i32 0, i32 6
// CHECK-NEXT: [[T3:%.*]] = load void ()*, void ()** [[T2]]
// CHECK-NEXT: [[T4:%.*]] = bitcast void ()* [[T3]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T4]])
// CHECK-NEXT: ret void
// Test that we correctly assign to __block variables when the
// assignment captures the variable.
void test10b(void) {
__block void (^block)(void);
block = ^{ block(); };
// CHECK-LABEL: define void @test10b()
// CHECK: [[BYREF:%.*]] = alloca [[BYREF_T:%.*]],
// Zero-initialize.
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 6
// CHECK-NEXT: store void ()* null, void ()** [[T0]], align 8
// CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 6
// The assignment.
// CHECK: [[T0:%.*]] = bitcast void ()* {{%.*}} to i8*
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainBlock(i8* [[T0]])
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to void ()*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[BYREF]], i32 0, i32 1
// CHECK-NEXT: [[T4:%.*]] = load [[BYREF_T]]*, [[BYREF_T]]** [[T3]]
// CHECK-NEXT: [[T5:%.*]] = getelementptr inbounds [[BYREF_T]], [[BYREF_T]]* [[T4]], i32 0, i32 6
// CHECK-NEXT: [[T6:%.*]] = load void ()*, void ()** [[T5]], align 8
// CHECK-NEXT: store void ()* {{%.*}}, void ()** [[T5]], align 8
// CHECK-NEXT: [[T7:%.*]] = bitcast void ()* [[T6]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T7]])
// Destroy at end of function.
// CHECK-NEXT: [[T0:%.*]] = bitcast [[BYREF_T]]* [[BYREF]] to i8*
// CHECK-NEXT: call void @_Block_object_dispose(i8* [[T0]], i32 8)
// CHECK-NEXT: [[T1:%.*]] = load void ()*, void ()** [[SLOT]]
// CHECK-NEXT: [[T2:%.*]] = bitcast void ()* [[T1]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T2]])
// CHECK: ret void
}
// rdar://problem/10088932
void test11_helper(id);
void test11a(void) {
int x;
test11_helper(^{ (void) x; });
// CHECK-LABEL: define void @test11a()
// CHECK: [[X:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]], align 8
// CHECK: [[T0:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to void ()*
// CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainBlock(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*
// CHECK-NEXT: [[T4:%.*]] = bitcast void ()* [[T3]] to i8*
// CHECK-NEXT: call void @test11_helper(i8* [[T4]])
// CHECK-NEXT: [[T5:%.*]] = bitcast void ()* [[T3]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T5]])
// CHECK: ret void
}
void test11b(void) {
int x;
id b = ^{ (void) x; };
// CHECK-LABEL: define void @test11b()
// CHECK: [[X:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[B:%.*]] = alloca i8*, align 8
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]], align 8
// CHECK: [[T0:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to void ()*
// CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainBlock(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*
// CHECK-NEXT: [[T4:%.*]] = bitcast void ()* [[T3]] to i8*
// CHECK-NEXT: store i8* [[T4]], i8** [[B]], align 8
// CHECK-NEXT: [[T5:%.*]] = load i8*, i8** [[B]]
// CHECK-NEXT: call void @objc_release(i8* [[T5]])
// CHECK: ret void
}
// rdar://problem/9979150
@interface Test12
@property (strong) void(^ablock)(void);
@property (nonatomic, strong) void(^nblock)(void);
@end
@implementation Test12
@synthesize ablock, nblock;
// CHECK: define internal void ()* @"\01-[Test12 ablock]"(
// CHECK: call i8* @objc_getProperty(i8* {{%.*}}, i8* {{%.*}}, i64 {{%.*}}, i1 zeroext true)
// CHECK: define internal void @"\01-[Test12 setAblock:]"(
// CHECK: call void @objc_setProperty(i8* {{%.*}}, i8* {{%.*}}, i64 {{%.*}}, i8* {{%.*}}, i1 zeroext true, i1 zeroext true)
// CHECK: define internal void ()* @"\01-[Test12 nblock]"(
// CHECK: call i8* @objc_getProperty(i8* {{%.*}}, i8* {{%.*}}, i64 {{%.*}}, i1 zeroext false)
// CHECK: define internal void @"\01-[Test12 setNblock:]"(
// CHECK: call void @objc_setProperty(i8* {{%.*}}, i8* {{%.*}}, i64 {{%.*}}, i8* {{%.*}}, i1 zeroext false, i1 zeroext true)
@end
// rdar://problem/10131784
void test13(id x) {
extern void test13_helper(id);
extern void test13_use(void(^)(void));
void (^b)(void) = (x ? ^{test13_helper(x);} : 0);
test13_use(b);
// CHECK-LABEL: define void @test13(
// CHECK: [[X:%.*]] = alloca i8*, align 8
// CHECK-NEXT: [[B:%.*]] = alloca void ()*, align 8
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:.*]], align 8
// CHECK-NEXT: [[CLEANUP_ACTIVE:%.*]] = alloca i1
// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retain(i8* {{%.*}})
// CHECK-NEXT: store i8* [[T0]], i8** [[X]], align 8
// CHECK-NEXT: [[BPTR1:%.*]] = bitcast void ()** [[B]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[BPTR1]])
// CHECK-NEXT: [[CLEANUP_ADDR:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]], align 8
// CHECK-NEXT: [[T1:%.*]] = icmp ne i8* [[T0]], null
// CHECK-NEXT: store i1 false, i1* [[CLEANUP_ACTIVE]]
// CHECK-NEXT: br i1 [[T1]],
// CHECK-NOT: br
// CHECK: [[CAPTURE:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]], align 8
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[CAPTURE]], align 8
// CHECK-NEXT: store i1 true, i1* [[CLEANUP_ACTIVE]]
// CHECK-NEXT: bitcast [[BLOCK_T]]* [[BLOCK]] to void ()*
// CHECK-NEXT: br label
// CHECK: br label
// CHECK: [[T0:%.*]] = phi void ()*
// CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainBlock(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*
// CHECK-NEXT: store void ()* [[T3]], void ()** [[B]], align 8
// CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[B]], align 8
// CHECK-NEXT: call void @test13_use(void ()* [[T0]])
// CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[B]]
// CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// CHECK-NEXT: [[T0:%.*]] = load i1, i1* [[CLEANUP_ACTIVE]]
// CHECK-NEXT: br i1 [[T0]]
// CHECK: [[T0:%.*]] = load i8*, i8** [[CLEANUP_ADDR]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: br label
// CHECK: [[BPTR2:%.*]] = bitcast void ()** [[B]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 8, i8* [[BPTR2]])
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: ret void
}
// <rdar://problem/10907510>
void test14() {
void (^const x[1])(void) = { ^{} };
}
// rdar://11149025
// Don't make invalid ASTs and crash.
void test15_helper(void (^block)(void), int x);
void test15(int a) {
test15_helper(^{ (void) a; }, ({ a; }));
}
// rdar://11016025
void test16() {
void (^BLKVAR)(void) = ^{ BLKVAR(); };
// CHECK-LABEL: define void @test16(
// CHECK: [[BLKVAR:%.*]] = alloca void ()*, align 8
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK-NEXT: [[BLKVARPTR1:%.*]] = bitcast void ()** [[BLKVAR]] to i8*
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[BLKVARPTR1]])
// CHECK-NEXT: [[SLOTREL:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK-NEXT: store void ()* null, void ()** [[BLKVAR]], align 8
}
// rdar://12151005
//
// This is an intentional exception to our conservative jump-scope
// checking for full-expressions containing block literals with
// non-trivial cleanups: if the block literal appears in the operand
// of a return statement, there's no need to extend its lifetime.
id (^test17(id self, int which))(void) {
switch (which) {
case 1: return ^{ return self; };
case 0: return ^{ return self; };
}
return (void*) 0;
}
// CHECK-LABEL: define i8* ()* @test17(
// CHECK: [[RET:%.*]] = alloca i8* ()*, align
// CHECK-NEXT: [[SELF:%.*]] = alloca i8*,
// CHECK: [[B0:%.*]] = alloca [[BLOCK:<.*>]], align
// CHECK: [[B1:%.*]] = alloca [[BLOCK]], align
// CHECK: [[T0:%.*]] = call i8* @objc_retain(i8*
// CHECK-NEXT: store i8* [[T0]], i8** [[SELF]], align
// CHECK-NOT: objc_retain
// CHECK-NOT: objc_release
// CHECK: [[DESTROY:%.*]] = getelementptr inbounds [[BLOCK]], [[BLOCK]]* [[B0]], i32 0, i32 5
// CHECK-NOT: objc_retain
// CHECK-NOT: objc_release
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BLOCK]], [[BLOCK]]* [[B0]], i32 0, i32 5
// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[SELF]], align
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
// CHECK-NEXT: store i8* [[T2]], i8** [[T0]],
// CHECK-NEXT: [[T0:%.*]] = bitcast [[BLOCK]]* [[B0]] to i8* ()*
// CHECK-NEXT: [[T1:%.*]] = bitcast i8* ()* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainBlock(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to i8* ()*
// CHECK-NEXT: store i8* ()* [[T3]], i8* ()** [[RET]]
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[DESTROY]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: store i32
// CHECK-NEXT: br label
// CHECK-NOT: objc_retain
// CHECK-NOT: objc_release
// CHECK: [[DESTROY:%.*]] = getelementptr inbounds [[BLOCK]], [[BLOCK]]* [[B1]], i32 0, i32 5
// CHECK-NOT: objc_retain
// CHECK-NOT: objc_release
// CHECK: [[T0:%.*]] = getelementptr inbounds [[BLOCK]], [[BLOCK]]* [[B1]], i32 0, i32 5
// CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[SELF]], align
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
// CHECK-NEXT: store i8* [[T2]], i8** [[T0]],
// CHECK-NEXT: [[T0:%.*]] = bitcast [[BLOCK]]* [[B1]] to i8* ()*
// CHECK-NEXT: [[T1:%.*]] = bitcast i8* ()* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainBlock(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to i8* ()*
// CHECK-NEXT: store i8* ()* [[T3]], i8* ()** [[RET]]
// CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[DESTROY]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: store i32
// CHECK-NEXT: br label
void test18(id x) {
// CHECK-UNOPT-LABEL: define void @test18(
// CHECK-UNOPT: [[X:%.*]] = alloca i8*,
// CHECK-UNOPT-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK-UNOPT-NEXT: store i8* null, i8** [[X]]
// CHECK-UNOPT-NEXT: call void @objc_storeStrong(i8** [[X]],
// CHECK-UNOPT-NEXT: [[SLOTREL:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK-UNOPT: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 4
// CHECK-UNOPT: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8*, i8*, i64 }* @[[BLOCK_DESCRIPTOR_TMP44]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8
// CHECK-UNOPT: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK-UNOPT-NEXT: [[T0:%.*]] = load i8*, i8** [[X]],
// CHECK-UNOPT-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
// CHECK-UNOPT-NEXT: store i8* [[T1]], i8** [[SLOT]],
// CHECK-UNOPT-NEXT: bitcast
// CHECK-UNOPT-NEXT: call void @test18_helper(
// CHECK-UNOPT-NEXT: call void @objc_storeStrong(i8** [[SLOTREL]], i8* null) [[NUW:#[0-9]+]]
// CHECK-UNOPT-NEXT: call void @objc_storeStrong(i8** [[X]], i8* null) [[NUW]]
// CHECK-UNOPT-NEXT: ret void
extern void test18_helper(id (^)(void));
test18_helper(^{ return x; });
}
// Ensure that we don't emit helper code in copy/dispose routines for variables
// that are const-captured.
void testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers(id x, id y) {
id __unsafe_unretained unsafeObject = x;
(^ { testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers(x, unsafeObject); })();
}
// CHECK-LABEL: define void @testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers
// %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8* }>, <{ i8*, i32, i32, i8*, %[[STRUCT_BLOCK_DESCRIPTOR]]*, i8*, i8* }>* %{{.*}}, i32 0, i32 4
// CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8*, i8*, i8* }* @[[BLOCK_DESCRIPTOR_TMP46]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8
// CHECK-LABEL: define internal void @__testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers_block_invoke
// CHECK-UNOPT-LABEL: define internal void @__testUnsafeUnretainedLifetimeInCopyAndDestroyHelpers_block_invoke
// rdar://13588325
void test19_sink(void (^)(int));
void test19(void (^b)(void)) {
// CHECK-LABEL: define void @test19(
// Prologue.
// CHECK: [[B:%.*]] = alloca void ()*,
// CHECK-NEXT: [[BLOCK:%.*]] = alloca [[BLOCK_T:<{.*}>]],
// CHECK-NEXT: [[T0:%.*]] = bitcast void ()* {{%.*}} to i8*
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to void ()*
// CHECK-NEXT: store void ()* [[T2]], void ()** [[B]]
// Block setup. We skip most of this. Note the bare retain.
// CHECK-NEXT: [[SLOTREL:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK: %[[BLOCK_DESCRIPTOR:.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 4
// CHECK: store %[[STRUCT_BLOCK_DESCRIPTOR]]* bitcast ({ i64, i64, i8*, i8*, i8*, i64 }* @[[BLOCK_DESCRIPTOR_TMP48]] to %[[STRUCT_BLOCK_DESCRIPTOR]]*), %[[STRUCT_BLOCK_DESCRIPTOR]]** %[[BLOCK_DESCRIPTOR]], align 8
// CHECK: [[SLOT:%.*]] = getelementptr inbounds [[BLOCK_T]], [[BLOCK_T]]* [[BLOCK]], i32 0, i32 5
// CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[B]],
// CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to void ()*
// CHECK-NEXT: store void ()* [[T3]], void ()** [[SLOT]],
// Call.
// CHECK-NEXT: [[T0:%.*]] = bitcast [[BLOCK_T]]* [[BLOCK]] to void (i32)*
// CHECK-NEXT: call void @test19_sink(void (i32)* [[T0]])
test19_sink(^(int x) { b(); });
// Block teardown.
// CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[SLOTREL]]
// CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// Local cleanup.
// CHECK-NEXT: [[T0:%.*]] = load void ()*, void ()** [[B]]
// CHECK-NEXT: [[T1:%.*]] = bitcast void ()* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// CHECK-NEXT: ret void
}
// CHECK-LABEL: define void @test20(
// CHECK: [[XADDR:%.*]] = alloca i8*
// CHECK-NEXT: [[BLOCK:%.*]] = alloca <[[BLOCKTY:.*]]>
// CHECK-NEXT: [[RETAINEDX:%.*]] = call i8* @objc_retain(i8* %{{.*}})
// CHECK-NEXT: store i8* [[RETAINEDX]], i8** [[XADDR]]
// CHECK-NEXT: [[CAPTUREFIELD:%.*]] = getelementptr inbounds <[[BLOCKTY]]>, <[[BLOCKTY]]>* [[BLOCK]], i32 0, i32 5
// CHECK: [[BLOCKCAPTURED:%.*]] = getelementptr inbounds <[[BLOCKTY]]>, <[[BLOCKTY]]>* [[BLOCK]], i32 0, i32 5
// CHECK: [[CAPTURED:%.*]] = load i8*, i8** [[XADDR]]
// CHECK: store i8* [[CAPTURED]], i8** [[BLOCKCAPTURED]]
// CHECK: [[CAPTURE:%.*]] = load i8*, i8** [[CAPTUREFIELD]]
// CHECK-NEXT: call void (...) @clang.arc.use(i8* [[CAPTURE]])
// CHECK-NEXT: [[X:%.*]] = load i8*, i8** [[XADDR]]
// CHECK-NEXT: call void @objc_release(i8* [[X]])
// CHECK-NEXT: ret void
// CHECK-UNOPT-LABEL: define void @test20(
// CHECK-UNOPT: [[XADDR:%.*]] = alloca i8*
// CHECK-UNOPT-NEXT: [[BLOCK:%.*]] = alloca <[[BLOCKTY:.*]]>
// CHECK-UNOPT: [[CAPTUREFIELD:%.*]] = getelementptr inbounds <[[BLOCKTY]]>, <[[BLOCKTY]]>* [[BLOCK]], i32 0, i32 5
// CHECK-UNOPT: [[BLOCKCAPTURED:%.*]] = getelementptr inbounds <[[BLOCKTY]]>, <[[BLOCKTY]]>* [[BLOCK]], i32 0, i32 5
// CHECK-UNOPT: [[CAPTURED:%.*]] = load i8*, i8** [[XADDR]]
// CHECK-UNOPT: [[RETAINED:%.*]] = call i8* @objc_retain(i8* [[CAPTURED]])
// CHECK-UNOPT: store i8* [[RETAINED]], i8** [[BLOCKCAPTURED]]
// CHECK-UNOPT: call void @objc_storeStrong(i8** [[CAPTUREFIELD]], i8* null)
void test20_callee(void (^)());
void test20(const id x) {
test20_callee(^{ (void)x; });
}
// CHECK: attributes [[NUW]] = { nounwind }
// CHECK-UNOPT: attributes [[NUW]] = { nounwind }
Reference in New Issue View Git Blame Copy Permalink