Changeset 167563 in webkit

Timestamp:

Apr 19, 2014, 9:42:42 PM (12 years ago)

Author:

fpizlo@apple.com

Message:

It should be OK to store new fields into objects that have no prototypes
​https://bugs.webkit.org/show_bug.cgi?id=131905

Reviewed by Mark Hahnenberg.

• dfg/DFGByteCodeParser.cpp:

(JSC::DFG::ByteCodeParser::emitPrototypeChecks):

• tests/stress/put-by-id-transition-null-prototype.js: Added.

(foo):

Location:

trunk/Source/JavaScriptCore

Files:

• ChangeLog (modified) (1 diff)
• dfg/DFGByteCodeParser.cpp (modified) (1 diff)
• tests/stress/put-by-id-transition-null-prototype.js (added)

trunk/Source/JavaScriptCore/ChangeLog

@@ +1 @@
+2014-04-19  Filip Pizlo  <fpizlo@apple.com>
+
+        It should be OK to store new fields into objects that have no prototypes
+        https://bugs.webkit.org/show_bug.cgi?id=131905
+
+        Reviewed by Mark Hahnenberg.
+
+        * dfg/DFGByteCodeParser.cpp:
+        (JSC::DFG::ByteCodeParser::emitPrototypeChecks):
+        * tests/stress/put-by-id-transition-null-prototype.js: Added.
+        (foo):
+
 2014-04-19  Benjamin Poulain  <bpoulain@apple.com>
 

trunk/Source/JavaScriptCore/dfg/DFGByteCodeParser.cpp

@@ -1886 +1886 @@
         base = cellConstantWithStructureCheck(currentObject, currentStructure);
     }
-    RELEASE_ASSERT(base);
     return base;
 }