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comparison truffle/com.oracle.truffle.api.profiles/src/com/oracle/truffle/api/profiles/LongValueProfile.java @ 22504:d80a5ff56f51

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Storing the profiling enabled information in a static field; checking it only once; shielding against missing method in the TruffleRuntime interface
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Thu, 17 Dec 2015 13:45:37 +0100
parents 828c67903db2
children
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22503:828c67903db2 22504:d80a5ff56f51
24 */ 24 */
25 package com.oracle.truffle.api.profiles; 25 package com.oracle.truffle.api.profiles;
26 26
27 import com.oracle.truffle.api.CompilerDirectives; 27 import com.oracle.truffle.api.CompilerDirectives;
28 import com.oracle.truffle.api.CompilerDirectives.CompilationFinal; 28 import com.oracle.truffle.api.CompilerDirectives.CompilationFinal;
29 import com.oracle.truffle.api.Truffle;
30 29
31 /** 30 /**
32 * <p> 31 * <p>
33 * Specialized value profile to capture certain properties of <code>long</code> runtime values. 32 * Specialized value profile to capture certain properties of <code>long</code> runtime values.
34 * Value profiles require a runtime check in their initialized state to verify their profiled 33 * Value profiles require a runtime check in their initialized state to verify their profiled
70 * Returns a value profile that profiles the exact value of an <code>long</code>. 69 * Returns a value profile that profiles the exact value of an <code>long</code>.
71 * 70 *
72 * @see LongValueProfile 71 * @see LongValueProfile
73 */ 72 */
74 public static LongValueProfile createIdentityProfile() { 73 public static LongValueProfile createIdentityProfile() {
75 if (Truffle.getRuntime().isProfilingEnabled()) { 74 if (Profile.isProfilingEnabled()) {
76 return Enabled.create(); 75 return Enabled.create();
77 } else { 76 } else {
78 return Disabled.INSTANCE; 77 return Disabled.INSTANCE;
79 } 78 }
80 } 79 }