src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.amd64/src/org/graalvm/compiler/replacements/amd64/AMD64StringUTF16Substitutions.java

rev 52509 : [mq]: graal

*** 1,7 ****
  /*
!  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 26,42 ****
  
  import org.graalvm.compiler.api.replacements.ClassSubstitution;
  import org.graalvm.compiler.api.replacements.Fold;
  import org.graalvm.compiler.api.replacements.Fold.InjectedParameter;
  import org.graalvm.compiler.api.replacements.MethodSubstitution;
! import org.graalvm.compiler.core.common.spi.ArrayOffsetProvider;
  import org.graalvm.compiler.replacements.nodes.ArrayCompareToNode;
- 
- import jdk.vm.ci.meta.JavaKind;
  import org.graalvm.compiler.word.Word;
  import jdk.internal.vm.compiler.word.Pointer;
  
  // JaCoCo Exclude
  
  /**
   * Substitutions for {@code java.lang.StringUTF16} methods.
   *
--- 26,45 ----
  
  import org.graalvm.compiler.api.replacements.ClassSubstitution;
  import org.graalvm.compiler.api.replacements.Fold;
  import org.graalvm.compiler.api.replacements.Fold.InjectedParameter;
  import org.graalvm.compiler.api.replacements.MethodSubstitution;
! import org.graalvm.compiler.nodes.DeoptimizeNode;
  import org.graalvm.compiler.replacements.nodes.ArrayCompareToNode;
  import org.graalvm.compiler.word.Word;
  import jdk.internal.vm.compiler.word.Pointer;
  
+ import jdk.vm.ci.meta.DeoptimizationAction;
+ import jdk.vm.ci.meta.DeoptimizationReason;
+ import jdk.vm.ci.meta.JavaKind;
+ import jdk.vm.ci.meta.MetaAccessProvider;
+ 
  // JaCoCo Exclude
  
  /**
   * Substitutions for {@code java.lang.StringUTF16} methods.
   *
*** 44,64 ****
   */
  @ClassSubstitution(className = "java.lang.StringUTF16", optional = true)
  public class AMD64StringUTF16Substitutions {
  
      @Fold
!     static int byteArrayBaseOffset(@InjectedParameter ArrayOffsetProvider arrayOffsetProvider) {
!         return arrayOffsetProvider.arrayBaseOffset(JavaKind.Byte);
      }
  
      @Fold
!     static int charArrayIndexScale(@InjectedParameter ArrayOffsetProvider arrayOffsetProvider) {
!         return arrayOffsetProvider.arrayScalingFactor(JavaKind.Char);
      }
  
      /** Marker value for the {@link InjectedParameter} injected parameter. */
!     static final ArrayOffsetProvider INJECTED = null;
  
      /**
       * @param value is char[]
       * @param other is char[]
       */
--- 47,77 ----
   */
  @ClassSubstitution(className = "java.lang.StringUTF16", optional = true)
  public class AMD64StringUTF16Substitutions {
  
      @Fold
!     static int byteArrayBaseOffset(@InjectedParameter MetaAccessProvider metaAccess) {
!         return metaAccess.getArrayBaseOffset(JavaKind.Byte);
!     }
! 
!     @Fold
!     static int byteArrayIndexScale(@InjectedParameter MetaAccessProvider metaAccess) {
!         return metaAccess.getArrayIndexScale(JavaKind.Byte);
      }
  
      @Fold
!     static int charArrayBaseOffset(@InjectedParameter MetaAccessProvider metaAccess) {
!         return metaAccess.getArrayBaseOffset(JavaKind.Char);
!     }
! 
!     @Fold
!     static int charArrayIndexScale(@InjectedParameter MetaAccessProvider metaAccess) {
!         return metaAccess.getArrayIndexScale(JavaKind.Char);
      }
  
      /** Marker value for the {@link InjectedParameter} injected parameter. */
!     static final MetaAccessProvider INJECTED = null;
  
      /**
       * @param value is char[]
       * @param other is char[]
       */
*** 81,92 ****
      }
  
      @MethodSubstitution(optional = true)
      public static int indexOfCharUnsafe(byte[] value, int ch, int fromIndex, int max) {
          Pointer sourcePointer = Word.objectToTrackedPointer(value).add(byteArrayBaseOffset(INJECTED)).add(fromIndex * charArrayIndexScale(INJECTED));
!         int result = AMD64ArrayIndexOfNode.optimizedArrayIndexOf(sourcePointer, max - fromIndex, (char) ch, JavaKind.Char);
          if (result != -1) {
              return result + fromIndex;
          }
          return result;
      }
  }
--- 94,148 ----
      }
  
      @MethodSubstitution(optional = true)
      public static int indexOfCharUnsafe(byte[] value, int ch, int fromIndex, int max) {
          Pointer sourcePointer = Word.objectToTrackedPointer(value).add(byteArrayBaseOffset(INJECTED)).add(fromIndex * charArrayIndexScale(INJECTED));
!         int result = AMD64ArrayIndexOf.indexOf1Char(sourcePointer, max - fromIndex, (char) ch);
          if (result != -1) {
              return result + fromIndex;
          }
          return result;
      }
+ 
+     /**
+      * Intrinsic for {@code java.lang.StringUTF16.compress([CI[BII)I}.
+      *
+      * <pre>
+      * @HotSpotIntrinsicCandidate
+      * public static int compress(char[] src, int src_indx, byte[] dst, int dst_indx, int len)
+      * </pre>
+      */
+     @MethodSubstitution
+     public static int compress(char[] src, int srcIndex, byte[] dest, int destIndex, int len) {
+         if (len < 0 || srcIndex < 0 || (srcIndex + len > src.length) || destIndex < 0 || (destIndex + len > dest.length)) {
+             DeoptimizeNode.deopt(DeoptimizationAction.None, DeoptimizationReason.BoundsCheckException);
+         }
+ 
+         Pointer srcPointer = Word.objectToTrackedPointer(src).add(charArrayBaseOffset(INJECTED)).add(srcIndex * charArrayIndexScale(INJECTED));
+         Pointer destPointer = Word.objectToTrackedPointer(dest).add(byteArrayBaseOffset(INJECTED)).add(destIndex * byteArrayIndexScale(INJECTED));
+         return AMD64StringUTF16CompressNode.compress(srcPointer, destPointer, len, JavaKind.Char);
+     }
+ 
+     /**
+      * Intrinsic for {@code }java.lang.StringUTF16.compress([BI[BII)I}.
+      *
+      * <pre>
+      * @HotSpotIntrinsicCandidate
+      * public static int compress(byte[] src, int src_indx, byte[] dst, int dst_indx, int len)
+      * </pre>
+      *
+      * In this variant {@code dest} refers to a byte array containing 2 byte per char so
+      * {@code srcIndex} and {@code len} are in terms of char elements and have to be scaled by 2
+      * when referring to {@code src}.
+      */
+     @MethodSubstitution
+     public static int compress(byte[] src, int srcIndex, byte[] dest, int destIndex, int len) {
+         if (len < 0 || srcIndex < 0 || (srcIndex * 2 + len * 2 > src.length) || destIndex < 0 || (destIndex + len > dest.length)) {
+             DeoptimizeNode.deopt(DeoptimizationAction.None, DeoptimizationReason.BoundsCheckException);
+         }
+ 
+         Pointer srcPointer = Word.objectToTrackedPointer(src).add(byteArrayBaseOffset(INJECTED)).add(srcIndex * 2 * byteArrayIndexScale(INJECTED));
+         Pointer destPointer = Word.objectToTrackedPointer(dest).add(byteArrayBaseOffset(INJECTED)).add(destIndex * byteArrayIndexScale(INJECTED));
+         return AMD64StringUTF16CompressNode.compress(srcPointer, destPointer, len, JavaKind.Byte);
+     }
+ 
  }