Changeset 61851 in webkit for trunk/JavaScriptCore

Timestamp:

Jun 25, 2010, 4:58:24 AM (15 years ago)

Author:

[email protected]

Message:

2010-06-25 Nathan Lawrence <​[email protected]>

Reviewed by Geoffrey Garen.

Aligning AssemblerBuffer to 128 bytes gives a 0.4% speedup on
sunspider.

• assembler/AssemblerBuffer.h: (JSC::AssemblerBuffer::AssemblerBuffer):

Location:

trunk/JavaScriptCore

Files:

• ChangeLog (modified) (1 diff)
• assembler/AssemblerBuffer.h (modified) (2 diffs)

trunk/JavaScriptCore/ChangeLog

@@ +1 @@
+2010-06-25  Nathan Lawrence  <[email protected]>
+
+        Reviewed by Geoffrey Garen.
+
+        Aligning AssemblerBuffer to 128 bytes gives a 0.4% speedup on
+        sunspider.
+
+        * assembler/AssemblerBuffer.h:
+        (JSC::AssemblerBuffer::AssemblerBuffer):
+
 2010-06-25  Sheriff Bot  <[email protected]>
 

trunk/JavaScriptCore/assembler/AssemblerBuffer.h

@@ -38 +38 @@
 
     class AssemblerBuffer {
-        static const int inlineCapacity = 256;
+        static const int inlineCapacity = 128 - sizeof(char*) - 2 * sizeof(int);
     public:
         AssemblerBuffer()
@@ -45 +45 @@
             , m_size(0)
         {
+            COMPILE_ASSERT(sizeof(AssemblerBuffer) == 128, AssemblerBuffer_should_be_128_bytes);
         }