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[Bug rtl-optimization/33928] [4.3/4.4/4.5/4.6 Regression] 30% performance slowdown in floating-point code caused by r118475
- From: "lucier at math dot purdue.edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 10 Mar 2011 22:00:43 +0000
- Subject: [Bug rtl-optimization/33928] [4.3/4.4/4.5/4.6 Regression] 30% performance slowdown in floating-point code caused by r118475
- Auto-submitted: auto-generated
- References: <bug-33928-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33928
--- Comment #120 from lucier at math dot purdue.edu 2011-03-10 22:00:22 UTC ---
At
http://www.math.purdue.edu/~lucier/bugzilla/15/
I've put a tarfile and instructions that allow one to build Gambit-C in
a way that splits out the FFT code into its own C function, so the
assembly code can be more easily examined.
Brad