Changeset 188771 in webkit for trunk/Source/JavaScriptCore/dfg/DFGLICMPhase.cpp

Timestamp:

Aug 21, 2015, 1:48:59 PM (10 years ago)

Author:

[email protected]

Message:

DFG::NodeOrigin should have a flag determining if exiting is OK right now
​https://bugs.webkit.org/show_bug.cgi?id=148323

Reviewed by Saam Barati.

• dfg/DFGByteCodeParser.cpp:

(JSC::DFG::ByteCodeParser::currentNodeOrigin):
(JSC::DFG::ByteCodeParser::branchData):

• dfg/DFGInsertionSet.h:

(JSC::DFG::InsertionSet::insertConstant):
(JSC::DFG::InsertionSet::insertConstantForUse):
(JSC::DFG::InsertionSet::insertBottomConstantForUse):

• dfg/DFGIntegerCheckCombiningPhase.cpp:

(JSC::DFG::IntegerCheckCombiningPhase::handleBlock):

• dfg/DFGLICMPhase.cpp:

(JSC::DFG::LICMPhase::attemptHoist):

• dfg/DFGNodeOrigin.h:

(JSC::DFG::NodeOrigin::NodeOrigin):
(JSC::DFG::NodeOrigin::isSet):
(JSC::DFG::NodeOrigin::withSemantic):

• dfg/DFGObjectAllocationSinkingPhase.cpp:

File:

• trunk/Source/JavaScriptCore/dfg/DFGLICMPhase.cpp (modified) (1 diff)

trunk/Source/JavaScriptCore/dfg/DFGLICMPhase.cpp

@@ -288 +288 @@
         node->owner = data.preHeader;
         NodeOrigin originalOrigin = node->origin;
-        node->origin.forExit = data.preHeader->terminal()->origin.forExit;
-        if (!node->origin.semantic.isSet())
-            node->origin.semantic = node->origin.forExit;
+        node->origin = data.preHeader->terminal()->origin.withSemantic(node->origin.semantic);
         
         // Modify the states at the end of the preHeader of the loop we hoisted to,