================
@@ -5349,6 +5350,40 @@ RValue CodeGenFunction::EmitBuiltinExpr(const GlobalDecl
GD, unsigned BuiltinID,
return RValue::get(Result);
}
+ case Builtin::BI__builtin_virtual_member_address: {
+ Address This = EmitLValue(E->getArg(0)).getAddress();
+ APValue ConstMemFun;
+ E->getArg(1)->isCXX11ConstantExpr(getContext(), &ConstMemFun, nullptr);
+ const CXXMethodDecl *CXXMethod =
+ cast<CXXMethodDecl>(ConstMemFun.getMemberPointerDecl());
+ const CGFunctionInfo &FInfo =
+ CGM.getTypes().arrangeCXXMethodDeclaration(CXXMethod);
+ llvm::FunctionType *Ty = CGM.getTypes().GetFunctionType(FInfo);
+ CGCallee VCallee = CGM.getCXXABI().getVirtualFunctionPointer(
+ *this, CXXMethod, This, Ty, E->getBeginLoc());
+ llvm::Value *Callee = VCallee.getFunctionPointer();
+ if (const CGPointerAuthInfo &Schema = VCallee.getPointerAuthInfo())
+ Callee = EmitPointerAuthAuth(Schema, Callee);
+ return RValue::get(Callee);
+ }
+
+ case Builtin::BI__builtin_get_vtable_pointer: {
+ const Expr *Target = E->getArg(0);
+ QualType TargetType = Target->getType();
+ QualType RecordType = TargetType;
+ if (RecordType->isPointerOrReferenceType())
+ RecordType = RecordType->getPointeeType();
+ const CXXRecordDecl *Decl = RecordType->getAsCXXRecordDecl();
+ assert(Decl);
----------------
ojhunt wrote:
Different authors over time, I'll unify on not asserting as null deref is the
downstream outcome.
https://github.com/llvm/llvm-project/pull/135469
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