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[Bug tree-optimization/77859] Ofast needed to vectorize loop in presence of conditional code
- From: "vincenzo.innocente at cern dot ch" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 05 Oct 2016 09:43:36 +0000
- Subject: [Bug tree-optimization/77859] Ofast needed to vectorize loop in presence of conditional code
- Auto-submitted: auto-generated
- References: <bug-77859-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77859
--- Comment #2 from vincenzo Innocente <vincenzo.innocente at cern dot ch> ---
Thanks for the fast response
I think I can "survive" with -O3 -fno-trapping-math
in principle it should not change the binary compatibility of the output w/r/t
-O2
and at best of my understanding it does not inhibit raising FP exceptions
(we already force -fno-math-errno to avoid errno generation in sqrt...)