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[Bug tree-optimization/85115] Failure to (auto)vectorize sqrtf
- From: "rguenth 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 Mar 2018 08:32:45 +0000
- Subject: [Bug tree-optimization/85115] Failure to (auto)vectorize sqrtf
- Auto-submitted: auto-generated
- References: <bug-85115-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85115
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
You need -fno-math-errno to vectorize this given we cannot vectorize the
side-effect of setting errno for negative inputs.