Mercurial > hg > truffle

comparison graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/ArraySubstitutions.java @ 21925:64475dbf6aec

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Move instantiation checks from methods substitutions to the lowering of DynamicNewInstanceNode and DynamicNewArrayNode, so that Unsafe.allocateInstance and Array.newInstance can be intrinsified to a single node.
author Christian Wimmer <christian.wimmer@oracle.com>
date Wed, 10 Jun 2015 17:23:19 -0700
parents 2c6802ac343c
children
comparison
equal deleted inserted replaced
21907:f6fd9fb11816 21925:64475dbf6aec
20 * or visit www.oracle.com if you need additional information or have any 20 * or visit www.oracle.com if you need additional information or have any
21 * questions. 21 * questions.
22 */ 22 */
23 package com.oracle.graal.replacements; 23 package com.oracle.graal.replacements;
24 24
25 import static com.oracle.graal.nodes.extended.BranchProbabilityNode.*;
26
27 import com.oracle.graal.api.directives.*;
28 import com.oracle.graal.nodes.*; 25 import com.oracle.graal.nodes.*;
29 import com.oracle.graal.nodes.java.*; 26 import com.oracle.graal.nodes.java.*;
30 import com.oracle.jvmci.meta.*; 27 import com.oracle.jvmci.meta.*;
31 28
32 // JaCoCo Exclude 29 // JaCoCo Exclude
34 /** 31 /**
35 * Substitutions for {@link java.lang.reflect.Array} methods. 32 * Substitutions for {@link java.lang.reflect.Array} methods.
36 */ 33 */
37 public class ArraySubstitutions { 34 public class ArraySubstitutions {
38 35
39 public static Object newInstance(Class<?> componentType, int length) throws NegativeArraySizeException {
40 // The error cases must be handled here since DynamicNewArrayNode can only deoptimize the
41 // caller in response to exceptions.
42 if (probability(SLOW_PATH_PROBABILITY, length < 0)) {
43 DeoptimizeNode.deopt(DeoptimizationAction.None, DeoptimizationReason.RuntimeConstraint);
44 }
45 if (probability(SLOW_PATH_PROBABILITY, componentType == void.class)) {
46 DeoptimizeNode.deopt(DeoptimizationAction.None, DeoptimizationReason.RuntimeConstraint);
47 }
48 return DynamicNewArrayNode.newArray(GraalDirectives.guardingNonNull(componentType), length);
49 }
50
51 public static int getLength(Object array) { 36 public static int getLength(Object array) {
52 if (!array.getClass().isArray()) { 37 if (!array.getClass().isArray()) {
53 DeoptimizeNode.deopt(DeoptimizationAction.None, DeoptimizationReason.RuntimeConstraint); 38 DeoptimizeNode.deopt(DeoptimizationAction.None, DeoptimizationReason.RuntimeConstraint);
54 } 39 }
55 return ArrayLengthNode.arrayLength(array); 40 return ArrayLengthNode.arrayLength(array);