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[Bug target/69577] [5/6 Regression] wrong code with -fno-forward-propagate -mavx and 128bit arithmetics since r215450
- From: "rsandifo at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 02 Feb 2016 08:46:16 +0000
- Subject: [Bug target/69577] [5/6 Regression] wrong code with -fno-forward-propagate -mavx and 128bit arithmetics since r215450
- Auto-submitted: auto-generated
- References: <bug-69577-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69577
--- Comment #7 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
(In reply to UroÅ Bizjak from comment #6)
> IMO, we should revert r215450, and fix a couple of cases using narrowing
> conversions with gen_lowpart that were introduced after r215450.
Please give me a few days to look at it first. I still think r215450 is
correct and reverting it is likely to regress code quality.