public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug other/17028] New: Code Slowdown wth -freduce-all-givs in C++
@ 2004-08-14 15:30 CaptainSifff at gmx dot de
2004-08-14 15:35 ` [Bug other/17028] " CaptainSifff at gmx dot de
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: CaptainSifff at gmx dot de @ 2004-08-14 15:30 UTC (permalink / raw)
To: gcc-bugs
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 5425 bytes --]
In the Man-page, you said you're interested in Code that runs slower, with
-freduce-all-givs -fmove-all-movables. I encounter in my programm ca. 5%-10%
slowdown.
If it's interresting: Compilation of my programm with -fnew-ra makes the Code
20%-30% slower
I'm using glibc-2.3.2
on a SuSE System. Kernel 2.6.8-rc4
I couldn't attach the relevant preprocessed Source-files, due to the
restrictions of your mailing-List.And I couldn't send to your mailing List
because it filters the header of my ISP. If someone is interrested in working
on this, he can mail me(CaptainSifff@gmx.de). The compressed source is 212 kB.
Feel free to ask for further Information.
Processing of Polygon.cpp produces this Console-Output:
Lese Spezifikationen von /usr/lib/gcc/i686-pc-linux-gnu/3.4.1/specs
Konfiguriert mit: ../gcc-3.4.1/configure --host=i686-pc-linux-gnu
--with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads
--enable-shared --prefix=/usr --with-cpu=i586 --with-arch=i586
--with-tune=i586
Thread-Modell: posix
gcc-Version 3.4.1
/usr/libexec/gcc/i686-pc-linux-gnu/3.4.1/cc1plus -E -quiet -v -D_GNU_SOURCE
Polygon.cpp -march=athlon-xp -mmmx -msse -m3dnow -ffast-math -funroll-loops
-funswitch-loops -fpeel-loops -funit-at-a-time -ftracer -fweb -O2 -o
Polygon.ii
nicht vorhandenes Verzeichnis
»/usr/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../i686-pc-linux-gnu/include«
wird ignoriert
#include "..." - Suche beginnt hier:
#include <...> - Suche beginnt hier:
/usr/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../include/c++/3.4.1
/usr/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../include/c++/3.4.1/i686-pc-linux-gnu
/usr/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../include/c++/3.4.1/backward
/usr/local/include
/usr/lib/gcc/i686-pc-linux-gnu/3.4.1/include
/usr/include
Ende der Suchliste.
In Datei, eingefügt von Polygon.cpp:21:
Polygon.h:33:1: Warnung: "M_PI" redefined
In Datei, eingefügt von Polygon.h:28,
von Polygon.cpp:21:
/usr/include/math.h:323:1: Warnung: this is the location of the previous
definition
/usr/libexec/gcc/i686-pc-linux-gnu/3.4.1/cc1plus -fpreprocessed Polygon.ii
-quiet -dumpbase Polygon.cpp -march=athlon-xp -mmmx -msse -m3dnow -auxbase
Polygon -O2 -version -ffast-math -funroll-loops -funswitch-loops -fpeel-loops
-funit-at-a-time -ftracer -fweb -o Polygon.s
GNU C++ version 3.4.1 (i686-pc-linux-gnu)
compiled by GNU C version 3.4.1.
GGC-Heuristik: --param ggc-min-expand=64 --param ggc-min-heapsize=64348
as -V -Qy -o Polygon.o Polygon.s
Processing of dreidstudiomaxloader.cpp produces this output
g++ -v -save-temps -march=athlon-xp -O2 -mmmx -msse -m3dnow -ffast-math
-funroll-loops -funswitch-loops -fpeel-loops -funit-at-a-time -ftracer -fweb
dreidstudiomaxloader.cpp -I.
Lese Spezifikationen von /usr/lib/gcc/i686-pc-linux-gnu/3.4.1/specs
Konfiguriert mit: ../gcc-3.4.1/configure --host=i686-pc-linux-gnu
--with-gnu-as --with-gnu-ld --with-system-zlib --enable-threads
--enable-shared --prefix=/usr --with-cpu=i586 --with-arch=i586
--with-tune=i586
Thread-Modell: posix
gcc-Version 3.4.1
/usr/libexec/gcc/i686-pc-linux-gnu/3.4.1/cc1plus -E -quiet -v -I.
-D_GNU_SOURCE dreidstudiomaxloader.cpp -march=athlon-xp -mmmx -msse -m3dnow
-ffast-math -funroll-loops -funswitch-loops -fpeel-loops -funit-at-a-time
-ftracer -fweb -O2 -o dreidstudiomaxloader.ii
nicht vorhandenes Verzeichnis
»/usr/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../i686-pc-linux-gnu/include«
wird ignoriert
#include "..." - Suche beginnt hier:
#include <...> - Suche beginnt hier:
.
/usr/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../include/c++/3.4.1
/usr/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../include/c++/3.4.1/i686-pc-linux-gnu
/usr/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../include/c++/3.4.1/backward
/usr/local/include
/usr/lib/gcc/i686-pc-linux-gnu/3.4.1/include
/usr/include
Ende der Suchliste.
In Datei, eingefügt von 3dsMax.h:20,
von dreidstudiomaxloader.cpp:28:
Polygon.h:33:1: Warnung: "M_PI" redefined
In Datei, eingefügt von Polygon.h:28,
von 3dsMax.h:20,
von dreidstudiomaxloader.cpp:28:
/usr/include/math.h:323:1: Warnung: this is the location of the previous
definition
/usr/libexec/gcc/i686-pc-linux-gnu/3.4.1/cc1plus -fpreprocessed
dreidstudiomaxloader.ii -quiet -dumpbase dreidstudiomaxloader.cpp
-march=athlon-xp -mmmx -msse -m3dnow -auxbase dreidstudiomaxloader -O2
-version -ffast-math -funroll-loops -funswitch-loops -fpeel-loops
-funit-at-a-time -ftracer -fweb -o dreidstudiomaxloader.s
GNU C++ version 3.4.1 (i686-pc-linux-gnu)
compiled by GNU C version 3.4.1.
GGC-Heuristik: --param ggc-min-expand=64 --param ggc-min-heapsize=64348
as -V -Qy -o dreidstudiomaxloader.o dreidstudiomaxloader.s
--
Summary: Code Slowdown wth -freduce-all-givs in C++
Product: gcc
Version: 3.4.1
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: other
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: CaptainSifff at gmx dot de
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-linux-gnu
GCC host triplet: i686-linux-gnu
GCC target triplet: i686-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17028
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug other/17028] Code Slowdown wth -freduce-all-givs in C++
2004-08-14 15:30 [Bug other/17028] New: Code Slowdown wth -freduce-all-givs in C++ CaptainSifff at gmx dot de
@ 2004-08-14 15:35 ` CaptainSifff at gmx dot de
2004-08-14 18:10 ` [Bug rtl-optimization/17028] " pinskia at gcc dot gnu dot org
2004-09-22 13:32 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: CaptainSifff at gmx dot de @ 2004-08-14 15:35 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From CaptainSifff at gmx dot de 2004-08-14 15:35 -------
Created an attachment (id=6926)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6926&action=view)
Preprocessed Source of my programm in tar.bz2 format
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17028
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/17028] Code Slowdown wth -freduce-all-givs in C++
2004-08-14 15:30 [Bug other/17028] New: Code Slowdown wth -freduce-all-givs in C++ CaptainSifff at gmx dot de
2004-08-14 15:35 ` [Bug other/17028] " CaptainSifff at gmx dot de
@ 2004-08-14 18:10 ` pinskia at gcc dot gnu dot org
2004-09-22 13:32 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-08-14 18:10 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Component|other |rtl-optimization
Keywords| |missed-optimization
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17028
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/17028] Code Slowdown wth -freduce-all-givs in C++
2004-08-14 15:30 [Bug other/17028] New: Code Slowdown wth -freduce-all-givs in C++ CaptainSifff at gmx dot de
2004-08-14 15:35 ` [Bug other/17028] " CaptainSifff at gmx dot de
2004-08-14 18:10 ` [Bug rtl-optimization/17028] " pinskia at gcc dot gnu dot org
@ 2004-09-22 13:32 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-09-22 13:32 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-09-22 13:31 -------
Not to be fixed, -freduce-all-givs is removed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |WONTFIX
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17028
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2004-09-22 13:32 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-08-14 15:30 [Bug other/17028] New: Code Slowdown wth -freduce-all-givs in C++ CaptainSifff at gmx dot de
2004-08-14 15:35 ` [Bug other/17028] " CaptainSifff at gmx dot de
2004-08-14 18:10 ` [Bug rtl-optimization/17028] " pinskia at gcc dot gnu dot org
2004-09-22 13:32 ` pinskia at gcc dot gnu dot org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).