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[Bug rtl-optimization/21507] [4.0/4.1 Regression] BYTEmark floating-point emulation: Regression with -O3
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Jul 2006 12:32:17 -0000
- Subject: [Bug rtl-optimization/21507] [4.0/4.1 Regression] BYTEmark floating-point emulation: Regression with -O3
- References: <bug-21507-10607@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from rguenth at gcc dot gnu dot org 2006-07-10 12:32 -------
Numbers for -static -O3 -march=pentium4 -fomit-frame-pointer (on a P4)
3.4.6: 8.1s
4.0.3: 7.3s
4.1.1: 13.5s
4.2.0: 4.2s
(is there a correctness check inside the benchmark?)
with FDO:
3.4.6: 5.8s
4.0.3: 9.8s
4.1.1: 10.5s
4.2.0: 4.2s
indeed interesting that we loose on FDO for 4.0, and bad
that we're that much slower for 4.1. Good for mainline though.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu dot
| |org
Summary|[4.0/4.1/4.2 Regression] |[4.0/4.1 Regression]
|BYTEmark floating-point |BYTEmark floating-point
|emulation: Regression with -|emulation: Regression with -
|O3 |O3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21507