RESOLVED FIXED 125677
CStack Branch: Use proper values for stack checks 
https://bugs.webkit.org/show_bug.cgi?id=125677
Summary CStack Branch: Use proper values for stack checks
Michael Saboff
Reported 2013-12-12 21:22:12 PST
Each of the JavaScript engines needs to check for available stack on entry to a function. This is done by subtracting a value from the callFrameRegister and then making sure it is greater than VM::m_jsStackLimit. Each engine gets the value a slightly different way. The LLInt should use CodeBlock::m_numCalleeRegisters * register size + maxFrameExtentForSlowPathCall The baseline JIT should use frameRegisterCountFor() The DFG should use Graph::requiredRegisterCountForExecutionAndExit()
Attachments
Patch (3.81 KB, patch)
2013-12-12 21:32 PST, Michael Saboff 		fpizlo: review+
DetailsFormatted DiffDiff
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Michael Saboff
Comment 1 2013-12-12 21:32:10 PST
Created attachment 219152 [details] Patch
Michael Saboff
Comment 2 2013-12-12 21:48:34 PST
Committed r160527: <http://trac.webkit.org/changeset/160527>
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