llvm-capstone/clang/test/CodeGenObjC/debug-info-blocks.m
Adrian Prantl 314b9278f0 Revert "[CGBlocks] Improve line info in backtraces containing *_helper_block"
Block copy/destroy helpers are now linkonce_odr functions, meant to be uniqued, and thus attaching debug information from one translation unit (or even just from one instance of many inside one translation unit) would be misleading and wrong in the general case.

This effectively reverts commit 9c6b6826ce3720ca8bb9bd15f3abf71261e6b911.

<rdar://problem/59137040>

Differential Revision: https://reviews.llvm.org/D75615
2020-03-05 09:58:42 -08:00

84 lines
3.0 KiB
Objective-C

// RUN: %clang_cc1 -emit-llvm -fblocks -debug-info-kind=limited -triple x86_64-apple-darwin10 -fobjc-dispatch-method=mixed -x objective-c < %s -o - | FileCheck %s
// rdar://problem/9279956
// Test that we generate the proper debug location for a captured self.
// The second half of this test is in llvm/tests/DebugInfo/debug-info-blocks.ll
// CHECK: define {{.*}}_block_invoke
// CHECK: %[[BLOCK:.*]] = bitcast i8* %.block_descriptor to <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>*, !dbg
// CHECK-NEXT: store <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %[[BLOCK]], <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>** %[[ALLOCA:.*]], align
// CHECK-NEXT: call void @llvm.dbg.declare(metadata <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>** %[[ALLOCA]], metadata ![[SELF:[0-9]+]], metadata !{{.*}})
// CHECK-NEXT: call void @llvm.dbg.declare(metadata %1** %d, metadata ![[D:[0-9]+]], metadata !{{.*}})
// Test that we do emit scope info for the helper functions, and that the
// parameters to these functions are marked as artificial (so the debugger
// doesn't accidentally step into the function).
// CHECK: define {{.*}} @__copy_helper_block_{{.*}}(i8* %0, i8* %1)
// CHECK-NOT: ret
// CHECK: call {{.*}}, !dbg ![[DBG_LINE:[0-9]+]]
// CHECK-NOT: ret
// CHECK: load {{.*}}, !dbg ![[DBG_LINE]]
// CHECK: ret {{.*}}, !dbg ![[DBG_LINE]]
// CHECK: define {{.*}} @__destroy_helper_block_{{.*}}(i8*
// CHECK-NOT: ret
// CHECK: load {{.*}}, !dbg ![[DESTROY_LINE:[0-9]+]]
// CHECK: ret {{.*}}, !dbg ![[DESTROY_LINE]]
// CHECK-DAG: [[DBG_LINE]] = !DILocation(line: 0, scope: ![[COPY_SP:[0-9]+]])
// CHECK-DAG: [[COPY_SP]] = distinct !DISubprogram(name: "__copy_helper_block_
// CHECK-DAG: [[DESTROY_LINE]] = !DILocation(line: 0, scope: ![[DESTROY_SP:[0-9]+]])
// CHECK-DAG: [[DESTROY_SP]] = distinct !DISubprogram(name: "__destroy_helper_block_
typedef unsigned int NSUInteger;
@protocol NSObject
@end
@interface NSObject <NSObject>
- (id)init;
+ (id)alloc;
@end
@interface NSDictionary : NSObject
- (NSUInteger)count;
@end
@interface NSMutableDictionary : NSDictionary
@end
@interface A : NSObject {
@public
int ivar;
}
@end
static void run(void (^block)(void))
{
block();
}
@implementation A
- (id)init
{
if ((self = [super init])) {
// CHECK-DAG: !DILocalVariable(arg: 1, scope: ![[COPY_SP]], {{.*}}, flags: DIFlagArtificial)
// CHECK-DAG: !DILocalVariable(arg: 2, scope: ![[COPY_SP]], {{.*}}, flags: DIFlagArtificial)
// CHECK-DAG: !DILocalVariable(arg: 1, scope: ![[DESTROY_SP]], {{.*}}, flags: DIFlagArtificial)
run(^{
// CHECK-DAG: ![[SELF]] = !DILocalVariable(name: "self", scope:{{.*}}, line: [[@LINE+4]],
// CHECK-DAG: ![[D]] = !DILocalVariable(name: "d", scope:{{.*}}, line: [[@LINE+1]],
NSMutableDictionary *d = [[NSMutableDictionary alloc] init];
ivar = 42 + (int)[d count];
});
}
return self;
}
@end
int main()
{
A *a = [[A alloc] init];
return 0;
}