[Bug target/54741] GCC 4.4, 4.5, 4.6 4.7 (probably 4.8) Generates un-usable code on AVX supported CPUs (FreeBSD)

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54741



--- Comment #15 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2012-10-02 
20:31:43 UTC ---

Author: hjl

Date: Tue Oct  2 20:31:40 2012

New Revision: 192004



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192004

Log:

Check SSE and YMM state support for -march=native



    Backported from mainline

    PR target/54741

    *  config/i386/driver-i386.c (XCR_XFEATURE_ENABLED_MASK): New.

    (XSTATE_FP): Likewise.

    (XSTATE_SSE): Likewise.

    (XSTATE_YMM): Likewise.

    (host_detect_local_cpu): Disable AVX, FMA, FMA4 and XOP if SSE

    and YMM states aren't supported.



Modified:

    branches/gcc-4_6-branch/gcc/ChangeLog

    branches/gcc-4_6-branch/gcc/config/i386/driver-i386.c