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[Bug optimization/13712] Executable runs 25% slower than when compiled with INTEL compiler
- From: "william dot crocker at analog dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Feb 2004 21:34:26 -0000
- Subject: [Bug optimization/13712] Executable runs 25% slower than when compiled with INTEL compiler
- References: <20040116211131.13712.william.crocker@analog.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From william dot crocker at analog dot com 2004-02-03 21:34 -------
Subject: Re: Executable runs 25% slower than when compiled with INTEL compiler
GCC Team:
>
> ANYWAY it runs and I get the following which now shows INTEL with only
> a 22% advantage versus the previous 37%.
>
I assume I will not see any changes to GCC to improve this
situation in the immediate future.
I guess I need to change my code to simulate the optimizations
performed by the INTEL compiler and NOT performed by GCC.
Do you have any suggestions (or references to suggestions)
as to what these changes might be so that I can make my program
run faster now.
Bill
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13712