Changeset 95206 in webkit

Timestamp:

Sep 15, 2011 11:54:17 AM (13 years ago)

Author:

fpizlo@apple.com

Message:

Tiered compilation should be enabled by default on platforms
that support the DFG JIT
​https://bugs.webkit.org/show_bug.cgi?id=68136

Reviewed by Sam Weinig.

Neutral on SunSpider, 4% speed-up on V8, and 19% speed-up on
Kraken. Large progressions on some benchmarks, including
3x on imaging-desaturate.

• wtf/Platform.h:

Location:

trunk/Source/JavaScriptCore

Files:

• ChangeLog (modified) (1 diff)
• wtf/Platform.h (modified) (1 diff)

trunk/Source/JavaScriptCore/ChangeLog

@@ +1 @@
+2011-09-14  Filip Pizlo  <fpizlo@apple.com>
+
+        Tiered compilation should be enabled by default on platforms
+        that support the DFG JIT
+        https://bugs.webkit.org/show_bug.cgi?id=68136
+
+        Reviewed by Sam Weinig.
+        
+        Neutral on SunSpider, 4% speed-up on V8, and 19% speed-up on
+        Kraken.  Large progressions on some benchmarks, including
+        3x on imaging-desaturate.
+
+        * wtf/Platform.h:
+
 2011-09-15  Gavin Barraclough  <barraclough@apple.com>
 

trunk/Source/JavaScriptCore/wtf/Platform.h

@@ -957 +957 @@
 #endif
 
-#if !defined(ENABLE_TIERED_COMPILATION)
-#define ENABLE_TIERED_COMPILATION 0
+#if !defined(ENABLE_TIERED_COMPILATION) && ENABLE(DFG_JIT)
+#define ENABLE_TIERED_COMPILATION 1
 #endif
 
 /* Currently only implemented for JSVALUE64, only tested on PLATFORM(MAC) */
-#if !defined(ENABLE_VALUE_PROFILER)
-#define ENABLE_VALUE_PROFILER ENABLE_TIERED_COMPILATION
-#endif
-
-#if !defined(ENABLE_DYNAMIC_OPTIMIZATION)
-#define ENABLE_DYNAMIC_OPTIMIZATION ENABLE_TIERED_COMPILATION
-#endif
-
-#if !defined(ENABLE_DYNAMIC_TERMINATE_SPECULATION)
-#define ENABLE_DYNAMIC_TERMINATE_SPECULATION ENABLE_DYNAMIC_OPTIMIZATION
+#if !defined(ENABLE_VALUE_PROFILER) && ENABLE(TIERED_COMPILATION)
+#define ENABLE_VALUE_PROFILER 1
+#endif
+
+#if !defined(ENABLE_DYNAMIC_OPTIMIZATION) && ENABLE(TIERED_COMPILATION)
+#define ENABLE_DYNAMIC_OPTIMIZATION 1
+#endif
+
+#if !defined(ENABLE_DYNAMIC_TERMINATE_SPECULATION) && ENABLE(DYNAMIC_OPTIMIZATION)
+#define ENABLE_DYNAMIC_TERMINATE_SPECULATION 1
 #endif