Changeset 90324 in webkit for trunk/Source/JavaScriptCore/ChangeLog

Timestamp:

Jul 2, 2011, 4:08:23 PM (14 years ago)

Author:

[email protected]

Message:

​https://bugs.webkit.org/show_bug.cgi?id=63866
DFG JIT - implement instanceof

Reviewed by Sam Weinig.

Add ops CheckHasInstance & InstanceOf to implement bytecodes
op_check_has_instance & op_instanceof. This is an initial
functional implementation, performance is a wash. We can
follow up with changes to fuse the InstanceOf node with
a subsequant branch, as we do with other comparisons.

• dfg/DFGByteCodeParser.cpp:

(JSC::DFG::ByteCodeParser::parseBlock):

• dfg/DFGJITCompiler.cpp:

(JSC::DFG::JITCompiler::jitAssertIsCell):

• dfg/DFGJITCompiler.h:

(JSC::DFG::JITCompiler::jitAssertIsCell):

• dfg/DFGNode.h:
• dfg/DFGNonSpeculativeJIT.cpp:

(JSC::DFG::NonSpeculativeJIT::compile):

• dfg/DFGOperations.cpp:
• dfg/DFGOperations.h:
• dfg/DFGSpeculativeJIT.cpp:

(JSC::DFG::SpeculativeJIT::compile):

File:

• trunk/Source/JavaScriptCore/ChangeLog (modified) (1 diff)

trunk/Source/JavaScriptCore/ChangeLog

@@ +1 @@
+2011-07-02  Gavin Barraclough  <[email protected]>
+
+        https://bugs.webkit.org/show_bug.cgi?id=63866
+        DFG JIT - implement instanceof
+
+        Reviewed by Sam Weinig.
+
+        Add ops CheckHasInstance & InstanceOf to implement bytecodes
+        op_check_has_instance & op_instanceof. This is an initial
+        functional implementation, performance is a wash. We can
+        follow up with changes to fuse the InstanceOf node with
+        a subsequant branch, as we do with other comparisons.
+
+        * dfg/DFGByteCodeParser.cpp:
+        (JSC::DFG::ByteCodeParser::parseBlock):
+        * dfg/DFGJITCompiler.cpp:
+        (JSC::DFG::JITCompiler::jitAssertIsCell):
+        * dfg/DFGJITCompiler.h:
+        (JSC::DFG::JITCompiler::jitAssertIsCell):
+        * dfg/DFGNode.h:
+        * dfg/DFGNonSpeculativeJIT.cpp:
+        (JSC::DFG::NonSpeculativeJIT::compile):
+        * dfg/DFGOperations.cpp:
+        * dfg/DFGOperations.h:
+        * dfg/DFGSpeculativeJIT.cpp:
+        (JSC::DFG::SpeculativeJIT::compile):
+
 2011-07-01  Oliver Hunt  <[email protected]>