Changeset 189544 in webkit for trunk/Source/JavaScriptCore/dfg/DFGMaximalFlushInsertionPhase.cpp

Timestamp:

Sep 9, 2015, 1:18:57 PM (10 years ago)

Author:

[email protected]

Message:

DFG should have a debugging option that runs a phase that flushes all locals
​https://bugs.webkit.org/show_bug.cgi?id=148916

Reviewed by Filip Pizlo.

Source/JavaScriptCore:

There is now an option to enable the DFG's new MaximalFlushInsertionPhase
phase to run. This phase ensures that we keep all locals and arguments flushed
to the stack at all places in the CFG. This phase is helpful for finding
a class of bugs where enabling this phase to run removes the bug.
This may also be useful in the development of a faster debugger
that doesn't capture all variables.

• CMakeLists.txt:
• JavaScriptCore.vcxproj/JavaScriptCore.vcxproj:
• JavaScriptCore.vcxproj/JavaScriptCore.vcxproj.filters:
• JavaScriptCore.xcodeproj/project.pbxproj:
• dfg/DFGMaximalFlushInsertionPhase.cpp: Added.

(JSC::DFG::MaximalFlushInsertionPhase::MaximalFlushInsertionPhase):
(JSC::DFG::MaximalFlushInsertionPhase::run):
(JSC::DFG::MaximalFlushInsertionPhase::treatRegularBlock):
(JSC::DFG::MaximalFlushInsertionPhase::treatRootBlock):
(JSC::DFG::MaximalFlushInsertionPhase::newVariableAccessData):
(JSC::DFG::performMaximalFlushInsertion):

• dfg/DFGMaximalFlushInsertionPhase.h: Added.
• dfg/DFGPlan.cpp:

(JSC::DFG::Plan::compileInThreadImpl):

• runtime/Options.cpp:

(JSC::recomputeDependentOptions):

• runtime/Options.h:

Tools:

• Scripts/run-jsc-stress-tests:

File:

• trunk/Source/JavaScriptCore/dfg/DFGMaximalFlushInsertionPhase.cpp (added)