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[Bug rtl-optimization/8361] [3.3/3.4/4.0 regression] C++ compile-time performance regression
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Jan 2005 04:50:10 -0000
- Subject: [Bug rtl-optimization/8361] [3.3/3.4/4.0 regression] C++ compile-time performance regression
- References: <20021025133601.8361.gerald@pfeifer.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-16 04:50 -------
(In reply to comment #39)
> Here is the current results for 3.3.2 vs the mainline:
> -O0 -O1 -O2 -O3
> 3.3.2 28.93 42.81 61.13 58.140
> mainline 11.06 43.18 54.86 58.35
And more current results for the mainline on powerpc-darwin:
11.09 30.55 39.09 38.74
So it looks like this is fixed really and we are 40 % faster than 3.3.2 at -O1 on this testcase.
56% faster at -O2 and 50% at -O3. (which means we have caught back up to and past 3.0.4's number if
the numbers in comment #0 scales the same on powerpc).
Someone should really do timings on x86 to make sure that they give about the same as powerpc.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8361