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Re: Reporting bugs: there is nothing to gain in frustrating reporters
- From: dewar at gnat dot com (Robert Dewar)
- To: dewar at adacore dot com, toon at moene dot indiv dot nluug dot nl
- Cc: gcc at gcc dot gnu dot org, vincent+gcc at vinc17 dot org
- Date: Sat, 18 Jun 2005 09:09:46 -0400 (EDT)
- Subject: Re: Reporting bugs: there is nothing to gain in frustrating reporters
By the way, we had one customer recently report an experiment of
using -march=pentium4 -fpmath=sse on a big application and seeing
a 5% improvement in performance. This customer incidentally had
reported a bug under the title "intel x86 numeric nightmare",
which was another version of PR/323 in the Ada context, and the
use of -fpmath=sse was to fix this nightmare (the improved
performance was a pleasant side effect). Unfortunately we
don't have the figures for these two switches separated.