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* [Bug target/45483] gcc-4.4.3: probably wrong optimization options chosen by "-march=native" [not found] <bug-45483-4@http.gcc.gnu.org/bugzilla/> @ 2011-09-22 20:49 ` pacho at condmat1 dot ciencias.uniovi.es 2011-09-22 21:39 ` [Bug target/45483] gcc-4.4.3 and 4.5.3: " hjl.tools at gmail dot com ` (4 subsequent siblings) 5 siblings, 0 replies; 6+ messages in thread From: pacho at condmat1 dot ciencias.uniovi.es @ 2011-09-22 20:49 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483 --- Comment #8 from Pacho Ramos <pacho at condmat1 dot ciencias.uniovi.es> 2011-09-22 20:47:04 UTC --- It's still using generic in gcc-4.5, -march has moved from prescott to pentium-m: gcc-4.4: \_ /usr/libexec/gcc/i686-pc-linux-gnu/4.4.5/cc1 -quiet - -D_FORTIFY_SOURCE=2 -march=prescott --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=2048 -mtune=generic -quiet -dumpbase - -auxbase-strip /dev/null -o /tmp/ccpMToQG.s gcc-4.5.3: \_ /usr/libexec/gcc/i686-pc-linux-gnu/4.5.3/cc1 -quiet - -D_FORTIFY_SOURCE=2 -march=pentium-m --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=2048 -mtune=generic -quiet -dumpbase - -auxbase-strip /dev/null -o /tmp/cc11MaKg.s Should I try with gcc-4.6 to see if it uses something different than "generic" for mtune (or march has changed again)? ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/45483] gcc-4.4.3 and 4.5.3: probably wrong optimization options chosen by "-march=native" [not found] <bug-45483-4@http.gcc.gnu.org/bugzilla/> 2011-09-22 20:49 ` [Bug target/45483] gcc-4.4.3: probably wrong optimization options chosen by "-march=native" pacho at condmat1 dot ciencias.uniovi.es @ 2011-09-22 21:39 ` hjl.tools at gmail dot com 2011-09-22 22:36 ` pacho at condmat1 dot ciencias.uniovi.es ` (3 subsequent siblings) 5 siblings, 0 replies; 6+ messages in thread From: hjl.tools at gmail dot com @ 2011-09-22 21:39 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483 --- Comment #9 from H.J. Lu <hjl.tools at gmail dot com> 2011-09-22 21:08:09 UTC --- (In reply to comment #8) > Should I try with gcc-4.6 to see if it uses something different than "generic" > for mtune (or march has changed again)? Yes. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/45483] gcc-4.4.3 and 4.5.3: probably wrong optimization options chosen by "-march=native" [not found] <bug-45483-4@http.gcc.gnu.org/bugzilla/> 2011-09-22 20:49 ` [Bug target/45483] gcc-4.4.3: probably wrong optimization options chosen by "-march=native" pacho at condmat1 dot ciencias.uniovi.es 2011-09-22 21:39 ` [Bug target/45483] gcc-4.4.3 and 4.5.3: " hjl.tools at gmail dot com @ 2011-09-22 22:36 ` pacho at condmat1 dot ciencias.uniovi.es 2011-09-22 23:05 ` pacho at condmat1 dot ciencias.uniovi.es ` (2 subsequent siblings) 5 siblings, 0 replies; 6+ messages in thread From: pacho at condmat1 dot ciencias.uniovi.es @ 2011-09-22 22:36 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483 --- Comment #10 from Pacho Ramos <pacho at condmat1 dot ciencias.uniovi.es> 2011-09-22 22:33:20 UTC --- New output: \_ /usr/libexec/gcc/i686-pc-linux-gnu/4.6.1/cc1 -quiet - -D_FORTIFY_SOURCE=2 -march=pentium-m -mno-cx16 -mno-sahf -mno-movbe -mno-aes -mno-pclmul -mno-popcnt -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-tbm -mno-avx -mno-sse4.2 -mno-sse4.1 --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=2048 -mtune=generic -quiet -dumpbase - -auxbase-strip /dev/null -o /tmp/cc63ioaE.s ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/45483] gcc-4.4.3 and 4.5.3: probably wrong optimization options chosen by "-march=native" [not found] <bug-45483-4@http.gcc.gnu.org/bugzilla/> ` (2 preceding siblings ...) 2011-09-22 22:36 ` pacho at condmat1 dot ciencias.uniovi.es @ 2011-09-22 23:05 ` pacho at condmat1 dot ciencias.uniovi.es 2011-09-24 15:54 ` hjl.tools at gmail dot com 2011-09-24 16:03 ` pacho at condmat1 dot ciencias.uniovi.es 5 siblings, 0 replies; 6+ messages in thread From: pacho at condmat1 dot ciencias.uniovi.es @ 2011-09-22 23:05 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483 --- Comment #11 from Pacho Ramos <pacho at condmat1 dot ciencias.uniovi.es> 2011-09-22 22:39:58 UTC --- If I use "mtune=native" instead of "march", final gcc command is different: /usr/libexec/gcc/i686-pc-linux-gnu/4.6.1/cc1 -quiet - -D_FORTIFY_SOURCE=2 --param l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=2048 -mtune=generic -quiet -dumpbase - -march=i686 -auxbase-strip /dev/null -o /tmp/ccs2Uhin.s Not sure if that is normal ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/45483] gcc-4.4.3 and 4.5.3: probably wrong optimization options chosen by "-march=native" [not found] <bug-45483-4@http.gcc.gnu.org/bugzilla/> ` (3 preceding siblings ...) 2011-09-22 23:05 ` pacho at condmat1 dot ciencias.uniovi.es @ 2011-09-24 15:54 ` hjl.tools at gmail dot com 2011-09-24 16:03 ` pacho at condmat1 dot ciencias.uniovi.es 5 siblings, 0 replies; 6+ messages in thread From: hjl.tools at gmail dot com @ 2011-09-24 15:54 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483 --- Comment #12 from H.J. Lu <hjl.tools at gmail dot com> 2011-09-24 15:19:56 UTC --- (In reply to comment #10) > New output: > > \_ /usr/libexec/gcc/i686-pc-linux-gnu/4.6.1/cc1 -quiet - -D_FORTIFY_SOURCE=2 > -march=pentium-m -mno-cx16 -mno-sahf -mno-movbe -mno-aes -mno-pclmul > -mno-popcnt -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-tbm > -mno-avx -mno-sse4.2 -mno-sse4.1 --param l1-cache-size=32 --param > l1-cache-line-size=64 --param l2-cache-size=2048 -mtune=generic -quiet > -dumpbase - -auxbase-strip /dev/null -o /tmp/cc63ioaE.s It looks great. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/45483] gcc-4.4.3 and 4.5.3: probably wrong optimization options chosen by "-march=native" [not found] <bug-45483-4@http.gcc.gnu.org/bugzilla/> ` (4 preceding siblings ...) 2011-09-24 15:54 ` hjl.tools at gmail dot com @ 2011-09-24 16:03 ` pacho at condmat1 dot ciencias.uniovi.es 5 siblings, 0 replies; 6+ messages in thread From: pacho at condmat1 dot ciencias.uniovi.es @ 2011-09-24 16:03 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483 Pacho Ramos <pacho at condmat1 dot ciencias.uniovi.es> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED --- Comment #13 from Pacho Ramos <pacho at condmat1 dot ciencias.uniovi.es> 2011-09-24 15:40:17 UTC --- OK, I guess I should close this one as looks like "generic" is the best option for my processor ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-09-24 15:41 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-45483-4@http.gcc.gnu.org/bugzilla/>
2011-09-22 20:49 ` [Bug target/45483] gcc-4.4.3: probably wrong optimization options chosen by "-march=native" pacho at condmat1 dot ciencias.uniovi.es
2011-09-22 21:39 ` [Bug target/45483] gcc-4.4.3 and 4.5.3: " hjl.tools at gmail dot com
2011-09-22 22:36 ` pacho at condmat1 dot ciencias.uniovi.es
2011-09-22 23:05 ` pacho at condmat1 dot ciencias.uniovi.es
2011-09-24 15:54 ` hjl.tools at gmail dot com
2011-09-24 16:03 ` pacho at condmat1 dot ciencias.uniovi.es
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