src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.aarch64/src/org/graalvm/compiler/core/aarch64/AArch64NodeMatchRules.java

*** 22,34 ****
--- 22,39 ----
   */
  
  package org.graalvm.compiler.core.aarch64;
  
  import org.graalvm.compiler.core.gen.NodeMatchRules;
+ import org.graalvm.compiler.core.match.ComplexMatchResult;
+ import org.graalvm.compiler.core.match.MatchRule;
  import org.graalvm.compiler.lir.LIRFrameState;
+ import org.graalvm.compiler.lir.aarch64.AArch64AddressValue;
  import org.graalvm.compiler.lir.gen.LIRGeneratorTool;
  import org.graalvm.compiler.nodes.DeoptimizingNode;
+ import org.graalvm.compiler.nodes.calc.SignExtendNode;
+ import org.graalvm.compiler.nodes.calc.ZeroExtendNode;
  import org.graalvm.compiler.nodes.memory.Access;
  
  import jdk.vm.ci.aarch64.AArch64Kind;
  
  public class AArch64NodeMatchRules extends NodeMatchRules {
*** 54,59 ****
--- 59,78 ----
      }
  
      protected AArch64ArithmeticLIRGenerator getArithmeticLIRGenerator() {
          return (AArch64ArithmeticLIRGenerator) getLIRGeneratorTool().getArithmetic();
      }
+ 
+     @MatchRule("(ZeroExtend Read=access)")
+     @MatchRule("(ZeroExtend FloatingRead=access)")
+     public ComplexMatchResult zeroExtend(ZeroExtendNode root, Access access) {
+         AArch64Kind memoryKind = getMemoryKind(access);
+         return builder -> getArithmeticLIRGenerator().emitExtendMemory(false, memoryKind, root.getResultBits(), (AArch64AddressValue) operand(access.getAddress()), getState(access));
+     }
+ 
+     @MatchRule("(SignExtend Read=access)")
+     @MatchRule("(SignExtend FloatingRead=access)")
+     public ComplexMatchResult signExtend(SignExtendNode root, Access access) {
+         AArch64Kind memoryKind = getMemoryKind(access);
+         return builder -> getArithmeticLIRGenerator().emitExtendMemory(true, memoryKind, root.getResultBits(), (AArch64AddressValue) operand(access.getAddress()), getState(access));
+     }
  }