2008-09-03 15:02:00 -04:00
|
|
|
# AX_FIXED_POINT_MACHINE(MACHINE, [ACTION-IF-FIXED-POINT], [ACTION-IF-NOT-FIXED-POINT])
|
|
|
|
|
# -------------------------------------------------------------------------------------
|
|
|
|
|
#
|
|
|
|
|
# Check if a specified machine type is a fixed point only machine. That is, if it lacks
|
|
|
|
|
# fast floating point support.
|
|
|
|
|
#
|
|
|
|
|
# This is a simple lookup amongst machines known to the current autotools. So far we deal
|
|
|
|
|
# with the embedded ARM, Blackfin, MIPS, TI DSP and XScale processors as things which lack
|
|
|
|
|
# fast hardware floating point.
|
|
|
|
|
#
|
|
|
|
|
# Other candidates would be the small embedded Power PCs.
|
|
|
|
|
#
|
|
|
|
|
AC_DEFUN([AX_FIXED_POINT_MACHINE],
|
|
|
|
|
[AS_VAR_PUSHDEF([ac_FixedPoint], [ac_cv_fixed_point_machine_$1])dnl
|
|
|
|
|
AC_CACHE_CHECK([if $1 is fixed point only], ac_FixedPoint,
|
|
|
|
|
[case $1 in
|
2012-12-24 14:14:59 -05:00
|
|
|
arc \
|
|
|
|
|
| arm | arm[bl]e | arme[bl] | armv[2345] | armv[345][bl] \
|
|
|
|
|
| arm-* | arm[bl]e-* | arme[bl]-* | armv[345]-* \
|
|
|
|
|
| bfin | bfin-* \
|
2008-09-03 15:02:00 -04:00
|
|
|
| mips | mipsbe | mipseb | mipsel | mipsle \
|
|
|
|
|
| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
|
2012-12-24 14:14:59 -05:00
|
|
|
| tic54x | c54x* | tic55x | c55x* | tic6x | c6x* \
|
2008-09-03 15:02:00 -04:00
|
|
|
| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
|
2012-12-24 14:14:59 -05:00
|
|
|
| xscale | xscalee[bl] \
|
2008-09-03 15:02:00 -04:00
|
|
|
| xscale-* | xscalee[bl]-* )
|
|
|
|
|
AS_VAR_SET(ac_FixedPoint, yes)
|
|
|
|
|
;;
|
|
|
|
|
*)
|
|
|
|
|
AS_VAR_SET(ac_FixedPoint, no)
|
|
|
|
|
;;
|
|
|
|
|
esac])
|
|
|
|
|
AS_IF([test AS_VAR_GET(ac_FixedPoint) = yes], [$2], [$3])[]dnl
|
|
|
|
|
AS_VAR_POPDEF([ac_FixedPoint])dnl
|
|
|
|
|
])# AX_FIXED_POINT_MACHINE
|
