http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483
Pacho Ramos changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50505
--- Comment #5 from Pacho Ramos
2011-09-24 14:25:44 UTC ---
(In reply to comment #4)
> It shouldn't be hard to understand that -mtune=k8-sse3 is a *valid* option but
> has the same effects as -mtune=k8. Removing it from the manual would be wrong.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50505
--- Comment #2 from Pacho Ramos
2011-09-24 13:46:00 UTC ---
Because I wanted to confirm it from upstream as looked strange to me that both
mtune options are allowed if they do the same. Why do you keep both? Thanks for
the info :)
About the man
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50505
Bug #: 50505
Summary: gcc-4.6.1 doesn't use "-mtune=k8-sse3" when using
"-march=native"
Classification: Unclassified
Product: gcc
Version: 4.6.1
Status: UNCONFIRMED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483
--- Comment #11 from Pacho Ramos
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 l
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483
--- Comment #10 from Pacho Ramos
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-
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483
--- Comment #8 from Pacho Ramos
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 --
