3 Commits

Author SHA1 Message Date
pfg
cd8fbd7550 GCC: bring back experimental support for amdfam10/barcelona CPUs.
Initial support for the AMD amdfam10 chipsets has been available in the
gcc43 branch under GPLv2. AMD and some linux distributions (OpenSUSE) did
a backport of the amdfam10 support and made it available.

This is a revised subset of the support initially brought in in r236962
and later reverted. The collateral efects seem to have disappeared but
it is still recommended to set the CPUTYPE with caution.

Reviewed by:	jkim (ages ago)
MFC after:	3 weeks
2013-06-01 01:02:24 +00:00
pfg
15cbdc9790 Revert r236962 - Experimental amdfam10/barcelona support.
The patches are unexpectedly causing gcc to fail while
building ports/graphics/ImageMagick even when the cpu
flags are not used.

Reported by:	Andreas Tobler
2012-06-13 20:21:08 +00:00
pfg
a6eb26cf6f Add experimental support for amdfam10/barcelona from the GCC 4.3 branch.
Initial support for the AMD barcelona chipsets has been available in the
gcc43 branch under GPLv2 but was not included when the Core 2 support
was brought to the system gcc.

AMD and some linux distributions (OpenSUSE) did a backport of the amdfam10
support and made them available. Unfortunately this is still experimental
and while it can improve performance, enabling the CPUTYPE may break some
C++ ports (like clang).

Special care was taken to make sure that the patches predate the GPLv3
switch upstream.

Tested by:	Vladimir Kushnir
Reviewed by:	mm
Approved by:	jhb (mentor)
MFC after:	2 weeks
2012-06-12 15:04:18 +00:00