src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.amd64/src/org/graalvm/compiler/core/amd64/AMD64ArithmeticLIRGenerator.java

*** 119,128 ****
--- 119,129 ----
  import org.graalvm.compiler.lir.amd64.AMD64Move;
  import org.graalvm.compiler.lir.amd64.AMD64MulDivOp;
  import org.graalvm.compiler.lir.amd64.AMD64ShiftOp;
  import org.graalvm.compiler.lir.amd64.AMD64SignExtendOp;
  import org.graalvm.compiler.lir.amd64.AMD64Unary;
+ import org.graalvm.compiler.lir.amd64.AMD64ZeroMemoryOp;
  import org.graalvm.compiler.lir.amd64.vector.AMD64VectorBinary;
  import org.graalvm.compiler.lir.amd64.vector.AMD64VectorBinary.AVXBinaryOp;
  import org.graalvm.compiler.lir.amd64.vector.AMD64VectorUnary;
  import org.graalvm.compiler.lir.gen.ArithmeticLIRGenerator;
  
*** 1100,1109 ****
--- 1101,1116 ----
      @Override
      public Value emitMathPow(Value x, Value y) {
          return new AMD64MathPowOp().emitLIRWrapper(getLIRGen(), x, y);
      }
  
+     @Override
+     public void emitZeroMemory(Value address, Value length) {
+         RegisterValue lengthReg = moveToReg(AMD64.rcx, length);
+         getLIRGen().append(new AMD64ZeroMemoryOp(getAMD64LIRGen().asAddressValue(address), lengthReg));
+     }
+ 
      protected AMD64LIRGenerator getAMD64LIRGen() {
          return (AMD64LIRGenerator) getLIRGen();
      }
  
      @Override