PING: new pass to warn on questionable uses of alloca() and VLAs

Aldy Hernandez
Wed Oct 19 18:43:00 GMT 2016

>> OK for the trunk whenever you're ready.
>> jeff
> You are too fast for me :-)
> I do not have the build trees for all the configurations ready for
> manual testing...
> So, I just merged the initial patch and the 2nd one, and started
> a validation job to make sure the 2nd patch fixes all the regressions
> observed earlier.
> It will take a few hours.

There shouldn't be any problems that didn't surface in my cross build, 
since they are not execution tests, but compile tests.

I have committed the patch.  If there any specific failures specific to 
your target, let me know and I'll address those separately.


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