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[Bug rtl-optimization/49148] Certain expressions take an extremely long time for no apparent reason
- From: "jchthys at yahoo dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 24 May 2011 21:53:40 +0000
- Subject: [Bug rtl-optimization/49148] Certain expressions take an extremely long time for no apparent reason
- Auto-submitted: auto-generated
- References: <bug-49148-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49148
--- Comment #5 from John Peyton <jchthys at yahoo dot com> 2011-05-24 21:26:49 UTC ---
> Maybe you are getting subnormals which causes a huge performance decrease.
It looks like that might indeed be the case. It didn't seem to happen with ICC
though. Is it possible that other compilers have different ways of handling
subnormals?