Add support for CheckWatchdogTimer as slow path in DFG and FTL.
https://bugs.webkit.org/show_bug.cgi?id=147968
Reviewed by Michael Saboff.
Re-implement the DFG's CheckWatchdogTimer as a slow path instead of a speculation
check. Since the watchdog timer can fire spuriously, this allows the code to
stay optimized if all we have are spurious fires.
Implement the equivalent slow path for CheckWatchdogTimer in the FTL.
The watchdog tests in ExecutionTimeLimitTest.cpp has already been updated in
https://bugs.webkit.org/show_bug.cgi?id=148125 to test for the FTL's watchdog
implementation.
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* ftl/FTLCapabilities.cpp:
(JSC::FTL::canCompile):
* ftl/FTLLowerDFGToLLVM.cpp:
(JSC::FTL::DFG::LowerDFGToLLVM::compileNode):
(JSC::FTL::DFG::LowerDFGToLLVM::compileMaterializeCreateActivation):
(JSC::FTL::DFG::LowerDFGToLLVM::compileCheckWatchdogTimer):
(JSC::FTL::DFG::LowerDFGToLLVM::isInlinableSize):
* jit/JIT.h:
* jit/JITInlines.h:
(JSC::JIT::callOperation):
* jit/JITOperations.cpp:
* jit/JITOperations.h:
- Changed operationHandleWatchdogTimer() to return an unused nullptr. This
allows me to reuse the existing DFG slow path generator mechanism. I didn't
think that operationHandleWatchdogTimer() was worth introducing a whole new set
of machinery just so we can have a slow path that returns void.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@188649 268f45cc-cd09-0410-ab3c-d52691b4dbfc
9 files changed
