Re: Reporting bugs: there is nothing to gain in frustrating reporters

[Robert Dewar]

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.