fix bug linalg

Author: chelini

mlir/lib/Dialect/Linalg/IR/LinalgOps.cpp

@@ -1498,17 +1498,16 @@ static Operation *findPayloadOp(Block *body, bool initFirst = false) {
 
 void printShortForm(OpAsmPrinter &p, Operation *payloadOp) {
   SmallVector<StringRef> elidedAttrs;
-  std::string attrToElide;
   p << " { " << payloadOp->getName().getStringRef();
   for (const auto &attr : payloadOp->getAttrs()) {
     if (auto fastAttr = dyn_cast<arith::FastMathFlagsAttr>(attr.getValue())) {
       if (fastAttr.getValue() == arith::FastMathFlags::none) {
-        elidedAttrs.push_back(attr.getName().str());
+        elidedAttrs.push_back(attr.getName());
       }
     }
     if (auto denormAttr = dyn_cast<arith::DenormalModeAttr>(attr.getValue())) {
       if (denormAttr.getValue() == arith::DenormalMode::ieee) {
-        elidedAttrs.push_back(attr.getName().str());
+        elidedAttrs.push_back(attr.getName());
       }
     }
   }