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27037: Use correct CVR qualifier on an upcast on method pointer call

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Patch by Taiju Tsuiki!

Differential Revision: https://reviews.llvm.org/D33875

llvm-svn: 305126
This commit is contained in:
Richard Smith 2017-06-09 22:25:28 +00:00
parent c4c33ce097
commit 01e4a7f29b
2 changed files with 16 additions and 1 deletions
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4
clang/lib/Sema/SemaExprCXX.cpp
View File

@ -5106,7 +5106,9 @@ QualType Sema::CheckPointerToMemberOperands(ExprResult &LHS, ExprResult &RHS,
return QualType();
// Cast LHS to type of use.
QualType UseType = isIndirect ? Context.getPointerType(Class) : Class;
QualType UseType = Context.getQualifiedType(Class, LHSType.getQualifiers());
if (isIndirect)
UseType = Context.getPointerType(UseType);
ExprValueKind VK = isIndirect ? VK_RValue : LHS.get()->getValueKind();
LHS = ImpCastExprToType(LHS.get(), UseType, CK_DerivedToBase, VK,
&BasePath);

13
clang/test/SemaCXX/PR27037.cpp Normal file
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@ -0,0 +1,13 @@
// RUN: %clang_cc1 -fsyntax-only -verify %s
struct A {
void f();
};
struct B : A {};
void m() {
const B b;
(b.*&B::f)(); // expected-error{{drops 'const' qualifier}}
((&b)->*&B::f)(); // expected-error{{drops 'const' qualifier}}
}