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[Bug tree-optimization/55016] request for specific builtins for rcp and rsqrt
- 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: Tue, 23 Oct 2012 05:19:37 +0000
- Subject: [Bug tree-optimization/55016] request for specific builtins for rcp and rsqrt
- Auto-submitted: auto-generated
- References: <bug-55016-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55016
--- Comment #2 from vincenzo Innocente <vincenzo.innocente at cern dot ch> 2012-10-23 05:19:37 UTC ---
For the application I have in mind a global flag will such as -ffaster-math
will not be suitable
as it would affect also places where full "single precision" is still required.
I would like just to profit of the rcp and rsqrt instructions for cases where
their low "precision" is enough.