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Re: improved data-flow analysis for Kawa


* Per Bothner [2011-04-23 07:39] writes:

> On 04/23/2011 12:19 AM, Helmut Eller wrote:
>> * Per Bothner [2011-04-18 18:41] writes:
>>
>>> I've checked in a much-improved data-flow framework for Kawa.
>>> This is similar to Static Single Assignment, but of course
>>> with the extra complication of functions and classes.
>>
>> I now get a stack overflow with when compiling some of my code.  It
>> seems to be in a big function with lots of macros.  Do you have any tips
>> of how one could reduce that to a small test case?
>
> You just have to remove code as long as it still fails.  It's
> trial-and-error.
> Often you can try simplifying procedure bodies radically - for example
> have a function just replace a constant or a parameter value.

It's still very big after that.  And I can remove parts in a dozen
different places to toggle between failing/non-failing.  

If I increase the JVM stack size to 350k it succeeds.  Does the new pass
just need a lot more stack or do I see a bug?

Helmut



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