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[Bug tree-optimization/81245] [8 Regression] ICE building calculix with -Ofast
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 29 Jun 2017 10:18:57 +0000
- Subject: [Bug tree-optimization/81245] [8 Regression] ICE building calculix with -Ofast
- Auto-submitted: auto-generated
- References: <bug-81245-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81245
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #6)
> Not sure if it's good to introduce copysign here anyway (do we actually
> vectorize this w/o target support?)
We should be able to without target support; I don't know if we do though. For
-ffast-math we should able to convert copysign into a veccond or bit selection.
I just know aarch64 has the target support already and that is why I saw the
ice.