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clang/lib/CodeGen/ItaniumCXXABI.cpp
| Show First 20 Lines • Show All 1,700 Lines • ▼ Show 20 Lines | |||||
| } | } | ||||
| bool ItaniumCXXABI::canSpeculativelyEmitVTable(const CXXRecordDecl *RD) const { | bool ItaniumCXXABI::canSpeculativelyEmitVTable(const CXXRecordDecl *RD) const { | ||||
| // We don't emit available_externally vtables if we are in -fapple-kext mode | // We don't emit available_externally vtables if we are in -fapple-kext mode | ||||
| // because kext mode does not permit devirtualization. | // because kext mode does not permit devirtualization. | ||||
| if (CGM.getLangOpts().AppleKext) | if (CGM.getLangOpts().AppleKext) | ||||
| return false; | return false; | ||||
| // If we don't have any not emitted inline virtual function, and if vtable is | // If vtable is hidden then it is not safe to emit available_externally | ||||
| // not hidden, then we are safe to emit available_externally copy of vtable. | // copy of vtable. | ||||
| if (isVTableHidden(RD)) | |||||
| return false; | |||||
| if (CGM.getCodeGenOpts().ForceEmitVTables) | |||||
| return true; | |||||
| // If we don't have any not emitted inline virtual function then we are safe | |||||
| // to emit available_externally copy of vtable. | |||||
| // FIXME we can still emit a copy of the vtable if we | // FIXME we can still emit a copy of the vtable if we | ||||
| // can emit definition of the inline functions. | // can emit definition of the inline functions. | ||||
| return !hasAnyUnusedVirtualInlineFunction(RD) && !isVTableHidden(RD); | return !hasAnyUnusedVirtualInlineFunction(RD); | ||||
| } | } | ||||
| static llvm::Value *performTypeAdjustment(CodeGenFunction &CGF, | static llvm::Value *performTypeAdjustment(CodeGenFunction &CGF, | ||||
| Address InitialPtr, | Address InitialPtr, | ||||
| int64_t NonVirtualAdjustment, | int64_t NonVirtualAdjustment, | ||||
| int64_t VirtualAdjustment, | int64_t VirtualAdjustment, | ||||
| bool IsReturnAdjustment) { | bool IsReturnAdjustment) { | ||||
| if (!NonVirtualAdjustment && !VirtualAdjustment) | if (!NonVirtualAdjustment && !VirtualAdjustment) | ||||
| return InitialPtr.getPointer(); | return InitialPtr.getPointer(); | ||||
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