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Re: [PATCH] Fix PR68067
- From: Alan Lawrence <alan dot lawrence at arm dot com>
- To: Richard Biener <rguenther at suse dot de>
- Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Fri, 6 Nov 2015 12:23:54 +0000
- Subject: Re: [PATCH] Fix PR68067
- Authentication-results: sourceware.org; auth=none
- References: <alpine dot LSU dot 2 dot 11 dot 1510271340060 dot 28064 at zhemvz dot fhfr dot qr> <alpine dot LSU dot 2 dot 11 dot 1510271526510 dot 28064 at zhemvz dot fhfr dot qr> <alpine dot LSU dot 2 dot 11 dot 1510281437450 dot 28064 at zhemvz dot fhfr dot qr> <563C817D dot 1060107 at arm dot com> <alpine dot LSU dot 2 dot 11 dot 1511061136580 dot 10078 at zhemvz dot fhfr dot qr>
On 06/11/15 10:39, Richard Biener wrote:
../spec2000/benchspec/CINT2000/254.gap/src/polynom.c:358:11: error: location
references block not in block tree
l1_279 = PHI <1(28), l1_299(33)>
^^^
this is the error to look at! It means that the GC heap will be corrupted
quite easily.
Thanks, I'll have a go at that.
-fdump-tree-alias is also suspicious, hinting that that does more than just
print. (How many bugs here??)
Interesting would be for which pass this happens - just print
*pass at this point.
FWIW - unswitch. (A long time after -fdump-tree-alias!)
Cheers, Alan