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[Bug rtl-optimization/13712] Executable runs 25% slower than when compiled with INTEL compiler
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 27 Feb 2006 14:22:16 -0000
- Subject: [Bug rtl-optimization/13712] Executable runs 25% slower than when compiled with INTEL compiler
- References: <bug-13712-7730@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #17 from steven at gcc dot gnu dot org 2006-02-27 14:22 -------
For -D__NO_MATH_INLINES we're probably not going to make any progress as long
as Uli is the glibc maintainer.
Other than that, this appears to be fixed. Note that ICC has -ffast-math and
SSE as the defaults, where GCC choses for safe math and code that works on any
ix86 CPU, not just the ones with SSE. So if there is still a significant
difference, it is as much philosophical as it is in code generation.
Given the right set of options, GCC can compete with ICC on my Pentium4 box,
and on Uros' box. So there doesn't seem to be a good reason to keep this
report open.
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
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CC| |steven at gcc dot gnu dot
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13712