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Commit 8d2a9e0e by Chao-ying Fu Committed by Chao-ying Fu
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fixed-obj.mk: New file to support fine-grain fixed-point functions. 

	* fixed-obj.mk: New file to support fine-grain fixed-point functions.
	* Makefile.in (fixed_point): Define.
	Check if fixed_point is yes to build support functions.
	* configure.ac: Check for fixed_point support.
	* configure: Regenerated.
	* gen-fixed.sh: New file to generate lists of fixed-point labels,
	funcs, modes, from, to.

Co-Authored-By: Nigel Stephens <nigel@mips.com>

From-SVN: r128557
parent 154e4a0a
Showing with 244 additions and 1 deletions
libgcc/ChangeLog
2007-09-17 Chao-ying Fu <fu@mips.com>
Nigel Stephens <nigel@mips.com>
* fixed-obj.mk: New file to support fine-grain fixed-point functions.
* Makefile.in (fixed_point): Define.
Check if fixed_point is yes to build support functions.
* configure.ac: Check for fixed_point support.
* configure: Regenerated.
* gen-fixed.sh: New file to generate lists of fixed-point labels,
funcs, modes, from, to.
2007-09-11 Janis Johnson <janis187@us.ibm.com
* Makefile.in (dfp-filenames): Add bid128_noncomp.
......
libgcc/Makefile.in
......@@ -38,6 +38,7 @@ SHELL = @SHELL@
enable_shared = @enable_shared@
decimal_float = @decimal_float@
enable_decimal_float = @enable_decimal_float@
fixed_point = @fixed_point@
host_noncanonical = @host_noncanonical@
......@@ -575,6 +576,48 @@ endif
endif
# Build fixed-point support.
ifeq ($(fixed_point),yes)
# Generate permutations of function name and mode
fixed-labels := $(shell $(SHELL) $(srcdir)/gen-fixed.sh arith labels)
fixed-funcs := $(shell $(SHELL) $(srcdir)/gen-fixed.sh arith funcs)
fixed-modes := $(shell $(SHELL) $(srcdir)/gen-fixed.sh arith modes)
# Generate the rules for each arithmetic function
iter-items := $(fixed-funcs)
iter-labels := $(fixed-labels)
iter-from := $(fixed-modes)
iter-to := $(fixed-modes)
include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/fixed-obj.mk,$(iter-items))
# Add arithmetic functions to list of objects to be built
libgcc-objects += $(patsubst %,%$(objext),$(fixed-funcs))
ifeq ($(enable_shared),yes)
libgcc-s-objects += $(patsubst %,%_s$(objext),$(fixed-funcs))
endif
# Convert from or to fractional
fixed-conv-funcs := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv funcs)
fixed-conv-labels := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv labels)
fixed-conv-from := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv from)
fixed-conv-to := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv to)
# Generate the make rules for each conversion function
iter-items := $(fixed-conv-funcs)
iter-labels := $(fixed-conv-labels)
iter-from := $(fixed-conv-from)
iter-to := $(fixed-conv-to)
include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/fixed-obj.mk,$(iter-items))
# Add conversion functions to list of objects to be built
libgcc-objects += $(patsubst %,%$(objext),$(fixed-conv-funcs))
ifeq ($(enable_shared),yes)
libgcc-s-objects += $(patsubst %,%_s$(objext),$(fixed-conv-funcs))
endif
endif
# Build LIB2ADD and LIB2ADD_ST.
ifneq ($(filter-out %.c %.S %.asm,$(LIB2ADD) $(LIB2ADD_ST)),)
$(error Unsupported files in LIB2ADD or LIB2ADD_ST.)
......
libgcc/configure
......@@ -272,7 +272,7 @@ PACKAGE_STRING='GNU C Runtime Library 1.0'
PACKAGE_BUGREPORT=''
ac_unique_file="static-object.mk"
ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS libgcc_topdir enable_shared slibdir INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA AWK build build_cpu build_vendor build_os host host_cpu host_vendor host_os host_noncanonical build_libsubdir build_subdir host_subdir target_subdir AR ac_ct_AR LIPO ac_ct_LIPO NM ac_ct_NM RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP LN_S CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP decimal_float enable_decimal_float vis_hide set_have_cc_tls tmake_file extra_parts asm_hidden_op LIBOBJS LTLIBOBJS'
ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS libgcc_topdir enable_shared slibdir INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA AWK build build_cpu build_vendor build_os host host_cpu host_vendor host_os host_noncanonical build_libsubdir build_subdir host_subdir target_subdir AR ac_ct_AR LIPO ac_ct_LIPO NM ac_ct_NM RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP LN_S CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP decimal_float enable_decimal_float fixed_point vis_hide set_have_cc_tls tmake_file extra_parts asm_hidden_op LIBOBJS LTLIBOBJS'
ac_subst_files=''
# Initialize some variables set by options.
......@@ -3330,6 +3330,51 @@ if test x$enable_decimal_float = xyes; then
fi
# Check for fixed-point support.
echo "$as_me:$LINENO: checking whether fixed-point is supported" >&5
echo $ECHO_N "checking whether fixed-point is supported... $ECHO_C" >&6
if test "${libgcc_cv_fixed_point+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
_Sat _Fract x;
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
(eval $ac_compile) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag"
|| test ! -s conftest.err'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
libgcc_cv_fixed_point=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
libgcc_cv_fixed_point=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $libgcc_cv_fixed_point" >&5
echo "${ECHO_T}$libgcc_cv_fixed_point" >&6
fixed_point=$libgcc_cv_fixed_point
# Collect host-machine-specific information.
. ${srcdir}/config.host
......@@ -4152,6 +4197,7 @@ s,@OBJEXT@,$OBJEXT,;t t
s,@CPP@,$CPP,;t t
s,@decimal_float@,$decimal_float,;t t
s,@enable_decimal_float@,$enable_decimal_float,;t t
s,@fixed_point@,$fixed_point,;t t
s,@vis_hide@,$vis_hide,;t t
s,@set_have_cc_tls@,$set_have_cc_tls,;t t
s,@tmake_file@,$tmake_file,;t t
......
libgcc/configure.ac
......@@ -145,6 +145,13 @@ if test x$enable_decimal_float = xyes; then
fi
AC_SUBST(enable_decimal_float)
# Check for fixed-point support.
AC_CACHE_CHECK([whether fixed-point is supported], [libgcc_cv_fixed_point],
[AC_COMPILE_IFELSE([_Sat _Fract x;], [libgcc_cv_fixed_point=yes],
[libgcc_cv_fixed_point=no])])
fixed_point=$libgcc_cv_fixed_point
AC_SUBST(fixed_point)
# Collect host-machine-specific information.
. ${srcdir}/config.host
......
libgcc/fixed-obj.mk 0 → 100644
# This file is included several times in a row, once for each element of
# $(iter-items). On each inclusion, we advance $o to the next element.
# $(iter-labels) and $(iter-from) and $(iter-to) are also advanced.
o := $(firstword $(iter-items))
iter-items := $(filter-out $o,$(iter-items))
$o-label := $(firstword $(iter-labels))
iter-labels := $(wordlist 2,$(words $(iter-labels)),$(iter-labels))
$o-from := $(firstword $(iter-from))
iter-from := $(wordlist 2,$(words $(iter-from)),$(iter-from))
$o-to := $(firstword $(iter-to))
iter-to := $(wordlist 2,$(words $(iter-to)),$(iter-to))
ifeq ($($o-from),$($o-to))
$o-opt := -D$($o-from)_MODE
else
$o-opt := -DFROM_$($o-from) -DTO_$($o-to)
endif
#$(info $o$(objext): -DL$($o-label) $($o-opt))
$o$(objext): %$(objext): $(gcc_srcdir)/config/fixed-bit.c
$(gcc_compile) -DL$($*-label) $($*-opt) -c $(gcc_srcdir)/config/fixed-bit.c $(vis_hide)
ifeq ($(enable_shared),yes)
$(o)_s$(objext): %_s$(objext): $(gcc_srcdir)/config/fixed-bit.c
$(gcc_s_compile) -DL$($*-label) $($*-opt) -c $(gcc_srcdir)/config/fixed-bit.c
endif
libgcc/gen-fixed.sh 0 → 100644
#!/bin/sh
# Worker script for libgcc/Makefile.in
# Generate lists of fixed-point labels, funcs, modes, from, to.
# Usage:
# gen-fixed.sh arith labels
# gen-fixed.sh arith funcs
# gen-fixed.sh arith modes
# gen-fixed.sh conv labels
# gen-fixed.sh conv funcs
# gen-fixed.sh conv from
# gen-fixed.sh conv to
fixed_sfract_modes="QQ HQ SQ DQ TQ HA SA DA TA"
fixed_ufract_modes="UQQ UHQ USQ UDQ UTQ UHA USA UDA UTA"
fixed_fract_modes="$fixed_sfract_modes $fixed_ufract_modes"
fixed_signed_modes="QI HI SI DI TI SF DF"
fixed_unsigned_modes="UQI UHI USI UDI UTI"
fixed_func_names="_add _sub _neg _mul _mulhelper _divhelper _ashl _ashlhelper _cmp _saturate1 _saturate2"
fixed_sfunc_names="_ssadd _sssub _ssneg _ssmul _ssdiv _div _ssashl _ashr"
fixed_ufunc_names="_usadd _ussub _usneg _usmul _usdiv _udiv _usashl _lshr"
# emit the function information
# $1 = output type selector
# $2 = base function name
# $3 = from mode
# $4 = to mode
emit ()
{
if [ "$3" != "$4" ]; then
case "$1" in
labels)
echo $2 ;;
from | modes)
echo $3 ;;
to)
echo $4 ;;
funcs)
echo $2$3$4 ;;
esac
fi
}
case "$1" in
arith)
for n in $fixed_func_names; do
for m in $fixed_fract_modes; do
emit $2 $n $m
done
done
for n in $fixed_sfunc_names; do
for m in $fixed_sfract_modes; do
emit $2 $n $m
done
done
for n in $fixed_ufunc_names; do
for m in $fixed_ufract_modes; do
emit $2 $n $m
done
done
;;
conv)
for f in $fixed_fract_modes; do
for t in $fixed_fract_modes $fixed_signed_modes; do
emit $2 _fract $f $t
done
done
for f in $fixed_signed_modes; do
for t in $fixed_fract_modes; do
emit $2 _fract $f $t
done
done
for f in $fixed_fract_modes $fixed_signed_modes; do
for t in $fixed_fract_modes; do
emit $2 _satfract $f $t
done
done
for f in $fixed_fract_modes; do
for t in $fixed_unsigned_modes; do
emit $2 _fractuns $f $t
done
done
for f in $fixed_unsigned_modes; do
for t in $fixed_fract_modes; do
emit $2 _fractuns $f $t
done
done
for f in $fixed_unsigned_modes; do
for t in $fixed_fract_modes; do
emit $2 _satfractuns $f $t
done
done
;;
esac
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