refactor: add createSignBit

Author: PikachuHyA

clang/include/clang/CIR/Dialect/Builder/CIRBaseBuilder.h

@@ -405,6 +405,11 @@ class CIRBaseBuilderTy : public mlir::OpBuilder {
     return create<mlir::cir::MemCpyOp>(loc, dst, src, len);
   }
 
+  mlir::cir::SignBitOp createSignBit(mlir::Location loc, mlir::Value val) {
+    auto resTy = mlir::cir::IntType::get(getContext(), 32, true);
+    return create<mlir::cir::SignBitOp>(loc, resTy, val);
+  }
+
   mlir::Value createSub(mlir::Value lhs, mlir::Value rhs, bool hasNUW = false,
                         bool hasNSW = false) {
     auto op = create<mlir::cir::BinOp>(lhs.getLoc(), lhs.getType(),

clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp

@@ -1650,10 +1650,8 @@ RValue CIRGenFunction::buildBuiltinExpr(const GlobalDecl GD, unsigned BuiltinID,
   case Builtin::BI__builtin_signbit:
   case Builtin::BI__builtin_signbitf:
   case Builtin::BI__builtin_signbitl: {
-    mlir::Location Loc = getLoc(E->getBeginLoc());
     mlir::Value val = buildScalarExpr(E->getArg(0));
-    auto resTy = mlir::cir::IntType::get(builder.getContext(), 32, true);
-    auto ret = builder.create<mlir::cir::SignBitOp>(Loc, resTy, val);
+    auto ret = builder.createSignBit(getLoc(E->getBeginLoc()), val);
     return RValue::get(ret->getResult(0));
   }