The Alpha sample does not use EXPERIMENTAL features.

/trunk/samples/alphaev56-unknown-linux-gnu/crosstool.config | 53 29 24 0 ++++++++++---------
1 file changed, 29 insertions(+), 24 deletions(-)

 # ia64 specific config options

 config ARCH_ia64

     select ARCH_SUPPORTS_BOTH_ENDIAN

     help

       The ia64 architecture, as defined by:

         http://www.intel.com/design/itanium/arch_spec.htm