[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 gcc-bugzilla@gcc.gnu.org
Tue Oct 2 19:49:00 GMT 2012


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

--- Comment #13 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2012-10-02 19:49:05 UTC ---
Author: hjl
Date: Tue Oct  2 19:49:01 2012
New Revision: 191998

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=191998
Log:
Check SSE and YMM state support for -march=native

2012-10-02  H.J. Lu  <hongjiu.lu@intel.com>

    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, AVX2, FMA, FMA4 and XOP if
    SSE and YMM states aren't supported.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/driver-i386.c



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