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Re: [PATCH] Fix vectorizer ICEs with -ftrapv (PR tree-optimization/81661, PR tree-optimization/84117)
- From: Jakub Jelinek <jakub at redhat dot com>
- To: Richard Biener <rguenther at suse dot de>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Thu, 1 Feb 2018 11:03:32 +0100
- Subject: Re: [PATCH] Fix vectorizer ICEs with -ftrapv (PR tree-optimization/81661, PR tree-optimization/84117)
- Authentication-results: sourceware.org; auth=none
- References: <20180131205329.GR2063@tucnak> <alpine.LSU.2.20.1802010943240.18265@zhemvz.fhfr.qr>
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
On Thu, Feb 01, 2018 at 09:47:23AM +0100, Richard Biener wrote:
> I wonder if you actually ran into the case of ABS_EXPR being
> passed to rewrite_to_non_trapping_overflow?
I haven't. In the first vrsion of the patch I wasn't using
operation_no_trapping_overflow and so just ignored ABS_EXPR,
with that helper either I'd need to explicitly punt on ABS_EXPR,
or implement it and chose the latter. Yes, we have no testsuite coverage
for it :(.
> Ok for trunk.
Thanks.
Jakub