add MissingFeatures::isPPC_FP128Ty()

Author: PikachuHyA

clang/include/clang/CIR/MissingFeatures.h

@@ -228,6 +228,7 @@ struct MissingFeatures {
   static bool xray() { return false; }
   static bool buildConstrainedFPCall() { return false; }
   static bool emitEmptyRecordCheck() { return false; }
+  static bool isPPC_FP128Ty() { return false; }
 
   // Inline assembly
   static bool asmGoto() { return false; }

clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp

@@ -1660,6 +1660,7 @@ RValue CIRGenFunction::buildBuiltinExpr(const GlobalDecl GD, unsigned BuiltinID,
   case Builtin::BI__builtin_signbit:
   case Builtin::BI__builtin_signbitf:
   case Builtin::BI__builtin_signbitl: {
+    assert(!::cir::MissingFeatures::isPPC_FP128Ty());
     mlir::Value val = buildScalarExpr(E->getArg(0));
     auto ret = builder.createSignBit(getLoc(E->getBeginLoc()), val);
     return RValue::get(ret->getResult(0));

clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp

@@ -4228,6 +4228,7 @@ class CIRSignBitOpLowering
   mlir::LogicalResult
   matchAndRewrite(mlir::cir::SignBitOp op, OpAdaptor adaptor,
                   mlir::ConversionPatternRewriter &rewriter) const override {
+    assert(!::cir::MissingFeatures::isPPC_FP128Ty());
     int width = getPrimitiveSizeInBits(op.getInput().getType());
     auto intTy = mlir::IntegerType::get(rewriter.getContext(), width);
     auto bitcast = rewriter.create<mlir::LLVM::BitcastOp>(op->getLoc(), intTy,