Changeset 95676 in webkit for trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp

Timestamp:

Sep 21, 2011, 3:43:11 PM (14 years ago)

Author:

[email protected]

Message:

Should support value profiling on CPU(X86)
​https://bugs.webkit.org/show_bug.cgi?id=68575

Reviewed by Sam Weinig.

Fix verbose profiling in ToT (SlowCaseProfile had been
partially renamed to RareCaseProfile), add in-memory
bucket counter for CPU(X86), move JIT::m_canBeOptimized
out of the DFG_JIT ifdef.

• bytecode/CodeBlock.cpp:

(JSC::CodeBlock::resetRareCaseProfiles):
(JSC::CodeBlock::dumpValueProfiles):

• bytecode/CodeBlock.h:
• dfg/DFGByteCodeParser.cpp:

(JSC::DFG::ByteCodeParser::makeSafe):

• jit/JIT.cpp:

(JSC::JIT::privateCompileSlowCases):
(JSC::JIT::privateCompile):

• jit/JIT.h:
• jit/JITInlineMethods.h:

(JSC::JIT::emitValueProfilingSite):

File:

• trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp (modified) (2 diffs)

trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp

@@ -1988 +1988 @@
 void CodeBlock::resetRareCaseProfiles()
 {
-    for (unsigned i = 0; i < numberOfSlowCaseProfiles(); ++i)
-        slowCaseProfile(i)->m_counter = 0;
+    for (unsigned i = 0; i < numberOfRareCaseProfiles(); ++i)
+        rareCaseProfile(i)->m_counter = 0;
     for (unsigned i = 0; i < numberOfSpecialFastCaseProfiles(); ++i)
         specialFastCaseProfile(i)->m_counter = 0;
@@ -2013 +2013 @@
         fprintf(stderr, "\n");
     }
-    fprintf(stderr, "SlowCaseProfile for %p:\n", this);
-    for (unsigned i = 0; i < numberOfSlowCaseProfiles(); ++i) {
-        SlowCaseProfile* profile = slowCaseProfile(i);
+    fprintf(stderr, "RareCaseProfile for %p:\n", this);
+    for (unsigned i = 0; i < numberOfRareCaseProfiles(); ++i) {
+        RareCaseProfile* profile = rareCaseProfile(i);
         fprintf(stderr, "   bc = %d: %u\n", profile->m_bytecodeOffset, profile->m_counter);
     }