r175793 - Patch for debug info of qualified-id types is 'id'
Fariborz Jahanian
fjahanian at apple.com
Thu Feb 21 12:42:11 PST 2013
Author: fjahanian
Date: Thu Feb 21 14:42:11 2013
New Revision: 175793
URL: http://llvm.org/viewvc/llvm-project?rev=175793&view=rev
Log:
Patch for debug info of qualified-id types is 'id'
By Adrian Pranti.
Added:
cfe/trunk/test/CodeGenObjC/debug-info-id-with-protocol.m
Modified:
cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=175793&r1=175792&r2=175793&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp Thu Feb 21 14:42:11 2013
@@ -530,6 +530,13 @@ llvm::DIType CGDebugInfo::CreateQualifie
llvm::DIType CGDebugInfo::CreateType(const ObjCObjectPointerType *Ty,
llvm::DIFile Unit) {
+
+ // The frontend treats 'id' as a typedef to an ObjCObjectType,
+ // whereas 'id<protocol>' is treated as an ObjCPointerType. For the
+ // debug info, we want to emit 'id' in both cases.
+ if (Ty->isObjCQualifiedIdType())
+ return getOrCreateType(CGM.getContext().getObjCIdType(), Unit);
+
llvm::DIType DbgTy =
CreatePointerLikeType(llvm::dwarf::DW_TAG_pointer_type, Ty,
Ty->getPointeeType(), Unit);
@@ -618,7 +625,6 @@ llvm::DIType CGDebugInfo::CreatePointeeT
return RetTy;
}
return getOrCreateType(PointeeTy, Unit);
-
}
llvm::DIType CGDebugInfo::CreatePointerLikeType(unsigned Tag,
@@ -629,7 +635,7 @@ llvm::DIType CGDebugInfo::CreatePointerL
Tag == llvm::dwarf::DW_TAG_rvalue_reference_type)
return DBuilder.createReferenceType(Tag,
CreatePointeeType(PointeeTy, Unit));
-
+
// Bit size, align and offset of the type.
// Size is always the size of a pointer. We can't use getTypeSize here
// because that does not return the correct value for references.
Added: cfe/trunk/test/CodeGenObjC/debug-info-id-with-protocol.m
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenObjC/debug-info-id-with-protocol.m?rev=175793&view=auto
==============================================================================
--- cfe/trunk/test/CodeGenObjC/debug-info-id-with-protocol.m (added)
+++ cfe/trunk/test/CodeGenObjC/debug-info-id-with-protocol.m Thu Feb 21 14:42:11 2013
@@ -0,0 +1,41 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-default-synthesize-properties -emit-llvm -g %s -o - | FileCheck %s
+__attribute((objc_root_class)) @interface NSObject {
+ id isa;
+}
++ (id)alloc;
+- (id)init;
+- (id)retain;
+ at end
+
+void NSLog(id, ...);
+
+ at protocol MyProtocol
+
+-(const char *)hello;
+
+ at end
+
+ at interface MyClass : NSObject {
+}
+
+ at property (nonatomic, assign) id <MyProtocol> bad_carrier;
+ at property (nonatomic, assign) id good_carrier;
+
+ at end
+
+ at implementation MyClass
+ at end
+
+int main()
+{
+ @autoreleasepool
+ {
+ MyClass *my_class = [MyClass alloc];
+ NSLog(@"%p\n", my_class.bad_carrier);
+ NSLog(@"%p\n", my_class.good_carrier);
+ }
+}
+// Verify that the debug type for both variables is 'id'.
+// CHECK: metadata !{i32 {{[0-9]+}}, metadata !{{[0-9]+}}, metadata !"bad_carrier", metadata !{{[0-9]+}}, i32 {{[0-9]+}}, metadata ![[IDTYPE:[0-9]+]], i32 0, i32 0} ; [ DW_TAG_arg_variable ] [bad_carrier] [line 21]
+// CHECK: metadata !{i32 {{[0-9]+}}, metadata !{{[0-9]+}}, metadata !"good_carrier", metadata !{{[0-9]+}}, i32 {{[0-9]+}}, metadata !{{.*}}[[IDTYPE]], i32 0, i32 0} ; [ DW_TAG_arg_variable ] [good_carrier] [line 22]
+// CHECK !{{.*}}[[IDTYPE]] = metadata !{i32 {{[0-9]+}}, null, metadata !"id", metadata !{{[0-9]+}}, i32 !{{[0-9]+}}, i64 0, i64 0, i64 0, i32 0, metadata !{{[0-9]+}}} ; [ DW_TAG_typedef ] [id]
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