diff options
Diffstat (limited to 'clang/lib')
| -rw-r--r-- | clang/lib/AST/MicrosoftMangle.cpp | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/clang/lib/AST/MicrosoftMangle.cpp b/clang/lib/AST/MicrosoftMangle.cpp index 061fc13c084..4bec8be7327 100644 --- a/clang/lib/AST/MicrosoftMangle.cpp +++ b/clang/lib/AST/MicrosoftMangle.cpp @@ -470,6 +470,9 @@ void MicrosoftCXXNameMangler::mangleMemberDataPointer(const CXXRecordDecl *RD, mangleNumber(FieldOffset); + // The C++ standard doesn't allow base-to-derived member pointer conversions + // in template parameter contexts, so the vbptr offset of data member pointers + // is always zero. if (MSInheritanceAttr::hasVBPtrOffsetField(IM)) mangleNumber(0); if (MSInheritanceAttr::hasVBTableOffsetField(IM)) @@ -509,6 +512,7 @@ MicrosoftCXXNameMangler::mangleMemberFunctionPointer(const CXXRecordDecl *RD, // thunk. uint64_t NVOffset = 0; uint64_t VBTableOffset = 0; + uint64_t VBPtrOffset = 0; if (MD->isVirtual()) { MicrosoftVTableContext *VTContext = cast<MicrosoftVTableContext>(getASTContext().getVTableContext()); @@ -518,11 +522,8 @@ MicrosoftCXXNameMangler::mangleMemberFunctionPointer(const CXXRecordDecl *RD, NVOffset = ML.VFPtrOffset.getQuantity(); VBTableOffset = ML.VBTableIndex * 4; if (ML.VBase) { - DiagnosticsEngine &Diags = Context.getDiags(); - unsigned DiagID = Diags.getCustomDiagID( - DiagnosticsEngine::Error, - "cannot mangle pointers to member functions from virtual bases"); - Diags.Report(MD->getLocation(), DiagID); + const ASTRecordLayout &Layout = getASTContext().getASTRecordLayout(RD); + VBPtrOffset = Layout.getVBPtrOffset().getQuantity(); } } else { mangleName(MD); @@ -532,7 +533,7 @@ MicrosoftCXXNameMangler::mangleMemberFunctionPointer(const CXXRecordDecl *RD, if (MSInheritanceAttr::hasNVOffsetField(/*IsMemberFunction=*/true, IM)) mangleNumber(NVOffset); if (MSInheritanceAttr::hasVBPtrOffsetField(IM)) - mangleNumber(0); + mangleNumber(VBPtrOffset); if (MSInheritanceAttr::hasVBTableOffsetField(IM)) mangleNumber(VBTableOffset); } |
