Changeset 154120 in webkit for trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp

Timestamp:

Aug 15, 2013, 12:44:16 PM (12 years ago)

Author:

[email protected]

Message:

<​https://webkit.org/b/119830> Assigning to a readonly global results in DFG byte code parse failure

Reviewed by Filip Pizlo.

Source/JavaScriptCore:

Make sure dfgCapabilities doesn't report a Dynamic put as
being compilable when we don't actually support it.

• bytecode/CodeBlock.cpp:

(JSC::CodeBlock::dumpBytecode):

• dfg/DFGCapabilities.cpp:

(JSC::DFG::capabilityLevel):

LayoutTests:

Add a test

• fast/js/dfg-put-to-readonly-property-expected.txt: Added.
• fast/js/dfg-put-to-readonly-property.html: Added.
• fast/js/script-tests/dfg-put-to-readonly-property.js: Added.

(foo):
(bar):

File:

• trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp (modified) (1 diff)

trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp

@@ -1292 +1292 @@
             int r0 = (++it)->u.operand;
             int id0 = (++it)->u.operand;
-            ++it; // ResolveType
+            int resolveModeAndType = (++it)->u.operand;
             ++it; // depth
-            out.printf("[%4d] resolve_scope\t %s, %s", location, registerName(r0).data(), idName(id0, identifier(id0)).data());
+            out.printf("[%4d] resolve_scope\t %s, %s, %d", location, registerName(r0).data(), idName(id0, identifier(id0)).data(), resolveModeAndType);
             break;
         }