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Add typeinfo support for T* and const T* for all builtin types T. 

llvm-svn: 89030
This commit is contained in:
Mike Stump 2009-11-17 02:57:13 +00:00
parent 5b2592ed65
commit 8f5e6770e7
2 changed files with 18 additions and 1 deletions
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13
clang/lib/CodeGen/CGRtti.cpp
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@ -253,6 +253,19 @@ public:
// We expect all type_info objects for builtin types to be in the library.
return BuildTypeRef(Ty);
}
case Type::Pointer: {
QualType PTy = Ty->getPointeeType();
Qualifiers Q = PTy.getQualifiers();
Q.removeConst();
// T* and const T* for all builtin types T are expected in the library.
if (isa<BuiltinType>(PTy) && Q.empty())
return BuildTypeRef(Ty);
assert(0 && "typeid expression");
const llvm::Type *Int8PtrTy = llvm::Type::getInt8PtrTy(VMContext);
return llvm::Constant::getNullValue(Int8PtrTy);
}
}
}
};

6
clang/test/CodeGenCXX/rtti.cpp
View File

@ -106,6 +106,8 @@ void test2_2(test1_D *dp) {
test2_1();
if (typeid(int) == typeid(float))
test2_1();
if (typeid(int*) == typeid(const int *))
test2_1();
}
// CHECK-LL:define void @_Z7test2_2P7test1_D(%class.test1_B7* %dp) nounwind {
@ -130,4 +132,6 @@ void test2_2(test1_D *dp) {
// CHECK-LL-NEXT: %8 = load %"class.std::type_info"** %7
// CHECK-LL-NEXT: %call7 = call zeroext i1 @_ZNKSt9type_infoeqERKS_(%"class.std::type_info"* %8, %"class.std::type_info"* bitcast (%1* @_ZTI7test1_D to %"class.std::type_info"*))
// CHECK-LL: %call10 = call zeroext i1 @_ZNKSt9type_infoeqERKS_(%"class.std::type_info"* bitcast (i8** @_ZTIi to %"class.std::type_info"*), %"class.std::type_info"* bitcast (i8** @_ZTIf to %"class.std::type_info"*)) ; <i1> [#uses=1]
// CHECK-LL: %call10 = call zeroext i1 @_ZNKSt9type_infoeqERKS_(%"class.std::type_info"* bitcast (i8** @_ZTIi to %"class.std::type_info"*), %"class.std::type_info"* bitcast (i8** @_ZTIf to %"class.std::type_info"*))
// CHECK-LL: %call13 = call zeroext i1 @_ZNKSt9type_infoeqERKS_(%"class.std::type_info"* bitcast (i8** @_ZTIPi to %"class.std::type_info"*), %"class.std::type_info"* bitcast (i8** @_ZTIPKi to %"class.std::type_info"*))