__declspec(dllexport) isn't needed, is it?
2014-09-12 8:38 GMT+04:00 David Majnemer <[email protected]>: > Author: majnemer > Date: Thu Sep 11 23:38:08 2014 > New Revision: 217654 > > URL: http://llvm.org/viewvc/llvm-project?rev=217654&view=rev > Log: > MS ABI: The latest VC "14" CTP implements deleted virtual functions > > Deleted virtual functions get _purecall inserted into the vftable. > Earlier CTPs would simply stick nullptr in there. > > N.B. MSVC can't handle deleted virtual functions which require return > adjusting thunks, they give an error that a deleted function couldn't be > called inside of a compiler generated function. We get this correct by > making the thunk have a __purecall entry as well. > > Modified: > cfe/trunk/lib/AST/VTableBuilder.cpp > cfe/trunk/lib/CodeGen/MicrosoftCXXABI.cpp > cfe/trunk/test/CodeGenCXX/microsoft-abi-vtables-virtual-inheritance.cpp > > Modified: cfe/trunk/lib/AST/VTableBuilder.cpp > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/VTableBuilder.cpp?rev=217654&r1=217653&r2=217654&view=diff > ============================================================================== > --- cfe/trunk/lib/AST/VTableBuilder.cpp (original) > +++ cfe/trunk/lib/AST/VTableBuilder.cpp Thu Sep 11 23:38:08 2014 > @@ -2566,13 +2566,6 @@ private: > } > } > > - void ErrorUnsupported(StringRef Feature, SourceLocation Location) { > - clang::DiagnosticsEngine &Diags = Context.getDiagnostics(); > - unsigned DiagID = Diags.getCustomDiagID( > - DiagnosticsEngine::Error, "v-table layout for %0 is not supported > yet"); > - Diags.Report(Context.getFullLoc(Location), DiagID) << Feature; > - } > - > public: > VFTableBuilder(MicrosoftVTableContext &VTables, > const CXXRecordDecl *MostDerivedClass, const VPtrInfo > *Which) > @@ -3037,10 +3030,8 @@ void VFTableBuilder::dumpLayout(raw_ostr > if (MD->isPure()) > Out << " [pure]"; > > - if (MD->isDeleted()) { > - ErrorUnsupported("deleted methods", MD->getLocation()); > + if (MD->isDeleted()) > Out << " [deleted]"; > - } > > ThunkInfo Thunk = VTableThunks.lookup(I); > if (!Thunk.isEmpty()) > > Modified: cfe/trunk/lib/CodeGen/MicrosoftCXXABI.cpp > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/MicrosoftCXXABI.cpp?rev=217654&r1=217653&r2=217654&view=diff > ============================================================================== > --- cfe/trunk/lib/CodeGen/MicrosoftCXXABI.cpp (original) > +++ cfe/trunk/lib/CodeGen/MicrosoftCXXABI.cpp Thu Sep 11 23:38:08 2014 > @@ -63,8 +63,6 @@ public: > } > > StringRef GetPureVirtualCallName() override { return "_purecall"; } > - // No known support for deleted functions in MSVC yet, so this choice is > - // arbitrary. > StringRef GetDeletedVirtualCallName() override { return "_purecall"; } > > llvm::Value *adjustToCompleteObject(CodeGenFunction &CGF, > > Modified: > cfe/trunk/test/CodeGenCXX/microsoft-abi-vtables-virtual-inheritance.cpp > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/microsoft-abi-vtables-virtual-inheritance.cpp?rev=217654&r1=217653&r2=217654&view=diff > ============================================================================== > --- cfe/trunk/test/CodeGenCXX/microsoft-abi-vtables-virtual-inheritance.cpp > (original) > +++ cfe/trunk/test/CodeGenCXX/microsoft-abi-vtables-virtual-inheritance.cpp > Thu Sep 11 23:38:08 2014 > @@ -1,4 +1,4 @@ > -// RUN: %clang_cc1 -fno-rtti -emit-llvm -o %t.ll -fdump-vtable-layouts %s > -triple=i386-pc-win32 >%t > +// RUN: %clang_cc1 -std=c++11 -fms-extensions -fno-rtti -emit-llvm -o %t.ll > -fdump-vtable-layouts %s -triple=i386-pc-win32 >%t > // RUN: FileCheck %s < %t > // RUN: FileCheck --check-prefix=MANGLING %s < %t.ll > > @@ -764,3 +764,11 @@ struct W : B, Y { > > W::W() {} > } > + > +namespace Test13 { > +struct __declspec(dllexport) A { > + // CHECK-LABEL: VFTable for 'Test13::A' (1 entry). > + // CHECK-NEXT: 0 | void Test13::A::f() [deleted] > + virtual void f() = delete; > +}; > +} > > > _______________________________________________ > cfe-commits mailing list > [email protected] > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
