Re: PATCH: PR target/49128: -mtune=native generates unsupported instructions

[Tobias Burnus]

This patch caused a boot-strap failure as it should be -mno-sse4.2 and 
not -mno-msse4.2,  cf. http://gcc.gnu.org/ml/gcc/2011-05/msg00271.html

H.J. Lu wrote:
Here is the updated patch.  It also handles FMA.  OK for trunk and 4.6
if there are no regressions?
[...]
2011-05-23  H.J. Lu<hongjiu...@intel.com>

        PR target/49128
        * config/i386/driver-i386.c (host_detect_local_cpu): Always
        add -mno-XXX.  Handle FMA.
[...]
+      const char *sse4_2 = has_sse4_2 ? " -msse4.2" : " -mno-msse4.2";


Tobias