From 3cc8a378d117ead86181ed4d9b440d5a59b08779 Mon Sep 17 00:00:00 2001 From: Jeff Johnston Date: Wed, 19 Dec 2007 22:20:25 +0000 Subject: 2007-12-19 Dave Korn Jeff Johnston * libc/include/_ansi.h: Add _LONG_LONG definition. * libc/include/math.h (llrint, llrintf, rintl, lrintl, llrintl): Add prototypes. * libc/machine/i386/machine/fastmath.h: Add support for new i386 fast math versions of rint, lrint, and llrint family functions. * libm/machine/i386/Makefile.am: Add new files. * libm/machine/i386/Makefile.in: Regenerated. * libm/machine/i386/f_llrint.c, libm/machine/i386/f_lrint.c, libm/machine/i386/f_rint.c, libm/machine/i386/f_llrintf.c, libm/machine/i386/f_lrintf.c, libm/machine/i386/f_rintf.c, libm/machine/i386/f_llrintl.c, libm/machine/i386/f_lrintl.c, libm/machine/i386/f_rintl.c: New files with fast math implementations. --- newlib/libm/machine/i386/Makefile.am | 9 +++- newlib/libm/machine/i386/Makefile.in | 101 +++++++++++++++++++++++++++++------ newlib/libm/machine/i386/f_llrint.c | 74 +++++++++++++++++++++++++ newlib/libm/machine/i386/f_llrintf.c | 38 +++++++++++++ newlib/libm/machine/i386/f_llrintl.c | 38 +++++++++++++ newlib/libm/machine/i386/f_lrint.c | 69 ++++++++++++++++++++++++ newlib/libm/machine/i386/f_lrintf.c | 32 +++++++++++ newlib/libm/machine/i386/f_lrintl.c | 38 +++++++++++++ newlib/libm/machine/i386/f_rint.c | 67 +++++++++++++++++++++++ newlib/libm/machine/i386/f_rintf.c | 32 +++++++++++ newlib/libm/machine/i386/f_rintl.c | 38 +++++++++++++ 11 files changed, 518 insertions(+), 18 deletions(-) create mode 100644 newlib/libm/machine/i386/f_llrint.c create mode 100644 newlib/libm/machine/i386/f_llrintf.c create mode 100644 newlib/libm/machine/i386/f_llrintl.c create mode 100644 newlib/libm/machine/i386/f_lrint.c create mode 100644 newlib/libm/machine/i386/f_lrintf.c create mode 100644 newlib/libm/machine/i386/f_lrintl.c create mode 100644 newlib/libm/machine/i386/f_rint.c create mode 100644 newlib/libm/machine/i386/f_rintf.c create mode 100644 newlib/libm/machine/i386/f_rintl.c (limited to 'newlib/libm') diff --git a/newlib/libm/machine/i386/Makefile.am b/newlib/libm/machine/i386/Makefile.am index c858ea414..6fade2d9a 100644 --- a/newlib/libm/machine/i386/Makefile.am +++ b/newlib/libm/machine/i386/Makefile.am @@ -8,8 +8,12 @@ AM_CCASFLAGS = $(INCLUDES) LIB_SOURCES = \ f_atan2.S f_atan2f.S f_exp.c f_expf.c \ - f_frexp.S f_frexpf.S f_log.S f_logf.S f_log10.S f_log10f.S \ - f_ldexp.S f_ldexpf.S f_pow.c f_powf.c f_tan.S f_tanf.S f_math.h i386mach.h + f_frexp.S f_frexpf.S f_llrint.c f_llrintf.c f_llrintl.c \ + f_log.S f_logf.S f_log10.S f_log10f.S \ + f_ldexp.S f_ldexpf.S f_lrint.c f_lrintf.c f_lrintl.c \ + f_pow.c f_powf.c f_rint.c f_rintf.c f_rintl.c \ + f_tan.S f_tanf.S f_math.h \ + i386mach.h libi386_la_LDFLAGS = -Xcompiler -nostdlib @@ -29,3 +33,4 @@ include $(srcdir)/../../../Makefile.shared ACLOCAL_AMFLAGS = -I ../../.. -I ../../../.. CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host + diff --git a/newlib/libm/machine/i386/Makefile.in b/newlib/libm/machine/i386/Makefile.in index 2a0f9fdb0..7c2c1e804 100644 --- a/newlib/libm/machine/i386/Makefile.in +++ b/newlib/libm/machine/i386/Makefile.in @@ -45,7 +45,11 @@ DIST_COMMON = $(srcdir)/../../../Makefile.shared \ $(am__configure_deps) $(srcdir)/../../../../mkinstalldirs \ $(srcdir)/../../../../compile $(srcdir)/../../../../compile \ $(srcdir)/../../../../compile $(srcdir)/../../../../compile \ - $(srcdir)/../../../../ltmain.sh \ + $(srcdir)/../../../../compile $(srcdir)/../../../../compile \ + $(srcdir)/../../../../compile $(srcdir)/../../../../compile \ + $(srcdir)/../../../../compile $(srcdir)/../../../../compile \ + $(srcdir)/../../../../compile $(srcdir)/../../../../compile \ + $(srcdir)/../../../../compile $(srcdir)/../../../../ltmain.sh \ $(srcdir)/../../../../config.guess \ $(srcdir)/../../../../config.sub subdir = . @@ -68,18 +72,25 @@ lib_a_LIBADD = am__objects_1 = lib_a-f_atan2.$(OBJEXT) lib_a-f_atan2f.$(OBJEXT) \ lib_a-f_exp.$(OBJEXT) lib_a-f_expf.$(OBJEXT) \ lib_a-f_frexp.$(OBJEXT) lib_a-f_frexpf.$(OBJEXT) \ - lib_a-f_log.$(OBJEXT) lib_a-f_logf.$(OBJEXT) \ - lib_a-f_log10.$(OBJEXT) lib_a-f_log10f.$(OBJEXT) \ - lib_a-f_ldexp.$(OBJEXT) lib_a-f_ldexpf.$(OBJEXT) \ + lib_a-f_llrint.$(OBJEXT) lib_a-f_llrintf.$(OBJEXT) \ + lib_a-f_llrintl.$(OBJEXT) lib_a-f_log.$(OBJEXT) \ + lib_a-f_logf.$(OBJEXT) lib_a-f_log10.$(OBJEXT) \ + lib_a-f_log10f.$(OBJEXT) lib_a-f_ldexp.$(OBJEXT) \ + lib_a-f_ldexpf.$(OBJEXT) lib_a-f_lrint.$(OBJEXT) \ + lib_a-f_lrintf.$(OBJEXT) lib_a-f_lrintl.$(OBJEXT) \ lib_a-f_pow.$(OBJEXT) lib_a-f_powf.$(OBJEXT) \ - lib_a-f_tan.$(OBJEXT) lib_a-f_tanf.$(OBJEXT) + lib_a-f_rint.$(OBJEXT) lib_a-f_rintf.$(OBJEXT) \ + lib_a-f_rintl.$(OBJEXT) lib_a-f_tan.$(OBJEXT) \ + lib_a-f_tanf.$(OBJEXT) @USE_LIBTOOL_FALSE@am_lib_a_OBJECTS = $(am__objects_1) lib_a_OBJECTS = $(am_lib_a_OBJECTS) LTLIBRARIES = $(noinst_LTLIBRARIES) libi386_la_LIBADD = am__objects_2 = f_atan2.lo f_atan2f.lo f_exp.lo f_expf.lo f_frexp.lo \ - f_frexpf.lo f_log.lo f_logf.lo f_log10.lo f_log10f.lo \ - f_ldexp.lo f_ldexpf.lo f_pow.lo f_powf.lo f_tan.lo f_tanf.lo + f_frexpf.lo f_llrint.lo f_llrintf.lo f_llrintl.lo f_log.lo \ + f_logf.lo f_log10.lo f_log10f.lo f_ldexp.lo f_ldexpf.lo \ + f_lrint.lo f_lrintf.lo f_lrintl.lo f_pow.lo f_powf.lo \ + f_rint.lo f_rintf.lo f_rintl.lo f_tan.lo f_tanf.lo @USE_LIBTOOL_TRUE@am_libi386_la_OBJECTS = $(am__objects_2) libi386_la_OBJECTS = $(am_libi386_la_OBJECTS) @USE_LIBTOOL_TRUE@am_libi386_la_rpath = @@ -177,15 +188,8 @@ STRIP = @STRIP@ USE_LIBTOOL_FALSE = @USE_LIBTOOL_FALSE@ USE_LIBTOOL_TRUE = @USE_LIBTOOL_TRUE@ VERSION = @VERSION@ -ac_ct_AR = @ac_ct_AR@ -ac_ct_AS = @ac_ct_AS@ ac_ct_CC = @ac_ct_CC@ -ac_ct_DLLTOOL = @ac_ct_DLLTOOL@ ac_ct_DUMPBIN = @ac_ct_DUMPBIN@ -ac_ct_OBJDUMP = @ac_ct_OBJDUMP@ -ac_ct_RANLIB = @ac_ct_RANLIB@ -ac_ct_READELF = @ac_ct_READELF@ -ac_ct_STRIP = @ac_ct_STRIP@ aext = @aext@ am__fastdepCC_FALSE = @am__fastdepCC_FALSE@ am__fastdepCC_TRUE = @am__fastdepCC_TRUE@ @@ -201,18 +205,23 @@ build_cpu = @build_cpu@ build_os = @build_os@ build_vendor = @build_vendor@ datadir = @datadir@ +datarootdir = @datarootdir@ +docdir = @docdir@ +dvidir = @dvidir@ exec_prefix = @exec_prefix@ host = @host@ host_alias = @host_alias@ host_cpu = @host_cpu@ host_os = @host_os@ host_vendor = @host_vendor@ +htmldir = @htmldir@ includedir = @includedir@ infodir = @infodir@ install_sh = @install_sh@ libdir = @libdir@ libexecdir = @libexecdir@ libm_machine_dir = @libm_machine_dir@ +localedir = @localedir@ localstatedir = @localstatedir@ lpfx = @lpfx@ lt_ECHO = @lt_ECHO@ @@ -222,8 +231,10 @@ mkdir_p = @mkdir_p@ newlib_basedir = @newlib_basedir@ oext = @oext@ oldincludedir = @oldincludedir@ +pdfdir = @pdfdir@ prefix = @prefix@ program_transform_name = @program_transform_name@ +psdir = @psdir@ sbindir = @sbindir@ sharedstatedir = @sharedstatedir@ sys_dir = @sys_dir@ @@ -234,8 +245,12 @@ INCLUDES = -I $(newlib_basedir)/../newlib/libm/common $(NEWLIB_CFLAGS) $(CROSS_C AM_CCASFLAGS = $(INCLUDES) LIB_SOURCES = \ f_atan2.S f_atan2f.S f_exp.c f_expf.c \ - f_frexp.S f_frexpf.S f_log.S f_logf.S f_log10.S f_log10f.S \ - f_ldexp.S f_ldexpf.S f_pow.c f_powf.c f_tan.S f_tanf.S f_math.h i386mach.h + f_frexp.S f_frexpf.S f_llrint.c f_llrintf.c f_llrintl.c \ + f_log.S f_logf.S f_log10.S f_log10f.S \ + f_ldexp.S f_ldexpf.S f_lrint.c f_lrintf.c f_lrintl.c \ + f_pow.c f_powf.c f_rint.c f_rintf.c f_rintl.c \ + f_tan.S f_tanf.S f_math.h \ + i386mach.h libi386_la_LDFLAGS = -Xcompiler -nostdlib @USE_LIBTOOL_TRUE@noinst_LTLIBRARIES = libi386.la @@ -412,6 +427,42 @@ lib_a-f_expf.o: f_expf.c lib_a-f_expf.obj: f_expf.c $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_expf.obj `if test -f 'f_expf.c'; then $(CYGPATH_W) 'f_expf.c'; else $(CYGPATH_W) '$(srcdir)/f_expf.c'; fi` +lib_a-f_llrint.o: f_llrint.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_llrint.o `test -f 'f_llrint.c' || echo '$(srcdir)/'`f_llrint.c + +lib_a-f_llrint.obj: f_llrint.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_llrint.obj `if test -f 'f_llrint.c'; then $(CYGPATH_W) 'f_llrint.c'; else $(CYGPATH_W) '$(srcdir)/f_llrint.c'; fi` + +lib_a-f_llrintf.o: f_llrintf.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_llrintf.o `test -f 'f_llrintf.c' || echo '$(srcdir)/'`f_llrintf.c + +lib_a-f_llrintf.obj: f_llrintf.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_llrintf.obj `if test -f 'f_llrintf.c'; then $(CYGPATH_W) 'f_llrintf.c'; else $(CYGPATH_W) '$(srcdir)/f_llrintf.c'; fi` + +lib_a-f_llrintl.o: f_llrintl.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_llrintl.o `test -f 'f_llrintl.c' || echo '$(srcdir)/'`f_llrintl.c + +lib_a-f_llrintl.obj: f_llrintl.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_llrintl.obj `if test -f 'f_llrintl.c'; then $(CYGPATH_W) 'f_llrintl.c'; else $(CYGPATH_W) '$(srcdir)/f_llrintl.c'; fi` + +lib_a-f_lrint.o: f_lrint.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_lrint.o `test -f 'f_lrint.c' || echo '$(srcdir)/'`f_lrint.c + +lib_a-f_lrint.obj: f_lrint.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_lrint.obj `if test -f 'f_lrint.c'; then $(CYGPATH_W) 'f_lrint.c'; else $(CYGPATH_W) '$(srcdir)/f_lrint.c'; fi` + +lib_a-f_lrintf.o: f_lrintf.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_lrintf.o `test -f 'f_lrintf.c' || echo '$(srcdir)/'`f_lrintf.c + +lib_a-f_lrintf.obj: f_lrintf.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_lrintf.obj `if test -f 'f_lrintf.c'; then $(CYGPATH_W) 'f_lrintf.c'; else $(CYGPATH_W) '$(srcdir)/f_lrintf.c'; fi` + +lib_a-f_lrintl.o: f_lrintl.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_lrintl.o `test -f 'f_lrintl.c' || echo '$(srcdir)/'`f_lrintl.c + +lib_a-f_lrintl.obj: f_lrintl.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_lrintl.obj `if test -f 'f_lrintl.c'; then $(CYGPATH_W) 'f_lrintl.c'; else $(CYGPATH_W) '$(srcdir)/f_lrintl.c'; fi` + lib_a-f_pow.o: f_pow.c $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_pow.o `test -f 'f_pow.c' || echo '$(srcdir)/'`f_pow.c @@ -424,6 +475,24 @@ lib_a-f_powf.o: f_powf.c lib_a-f_powf.obj: f_powf.c $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_powf.obj `if test -f 'f_powf.c'; then $(CYGPATH_W) 'f_powf.c'; else $(CYGPATH_W) '$(srcdir)/f_powf.c'; fi` +lib_a-f_rint.o: f_rint.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_rint.o `test -f 'f_rint.c' || echo '$(srcdir)/'`f_rint.c + +lib_a-f_rint.obj: f_rint.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_rint.obj `if test -f 'f_rint.c'; then $(CYGPATH_W) 'f_rint.c'; else $(CYGPATH_W) '$(srcdir)/f_rint.c'; fi` + +lib_a-f_rintf.o: f_rintf.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_rintf.o `test -f 'f_rintf.c' || echo '$(srcdir)/'`f_rintf.c + +lib_a-f_rintf.obj: f_rintf.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_rintf.obj `if test -f 'f_rintf.c'; then $(CYGPATH_W) 'f_rintf.c'; else $(CYGPATH_W) '$(srcdir)/f_rintf.c'; fi` + +lib_a-f_rintl.o: f_rintl.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_rintl.o `test -f 'f_rintl.c' || echo '$(srcdir)/'`f_rintl.c + +lib_a-f_rintl.obj: f_rintl.c + $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-f_rintl.obj `if test -f 'f_rintl.c'; then $(CYGPATH_W) 'f_rintl.c'; else $(CYGPATH_W) '$(srcdir)/f_rintl.c'; fi` + mostlyclean-libtool: -rm -f *.lo diff --git a/newlib/libm/machine/i386/f_llrint.c b/newlib/libm/machine/i386/f_llrint.c new file mode 100644 index 000000000..0fe27d7df --- /dev/null +++ b/newlib/libm/machine/i386/f_llrint.c @@ -0,0 +1,74 @@ +/* + * ==================================================== + * x87 FP implementation contributed to Newlib by + * Dave Korn, November 2007. This file is placed in the + * public domain. Permission to use, copy, modify, and + * distribute this software is freely granted. + * ==================================================== + */ + +#ifdef __GNUC__ +#if !defined(_SOFT_FLOAT) + +#include + +/* +FUNCTION +<>, <>, <>---round and convert to long long integer +INDEX + llrint +INDEX + llrintf +INDEX + llrintl + +ANSI_SYNOPSIS + #include + long long int llrint(double x); + long long int llrintf(float x); + long long int llrintl(long double x); + +TRAD_SYNOPSIS + ANSI-only. + +DESCRIPTION +The <>, <> and <> functions round <[x]> to the nearest integer value, +according to the current rounding direction. If the rounded value is outside the +range of the return type, the numeric result is unspecified. A range error may +occur if the magnitude of <[x]> is too large. + +RETURNS +These functions return the rounded integer value of <[x]>. +<>, <> and <> return the result as a long long integer. + +PORTABILITY +<>, <> and <> are ANSI. +<>, <> and <> are only available on i386 platforms when +hardware floating point support is available and when compiling with GCC. + +*/ + +/* + * Fast math version of llrint(x) + * Return x rounded to integral value according to the prevailing + * rounding mode. + * Method: + * Using inline x87 asms. + * Exception: + * Governed by x87 FPCR. + */ + +long long int _f_llrint (double x) +{ + long long int _result; + asm ("fistpll %0" : "=m" (_result) : "t" (x) : "st"); + return _result; +} + +/* For now, we only have the fast math version. */ +long long int llrint (double x) { + return _f_llrint(x); +} + +#endif /* !_SOFT_FLOAT */ +#endif /* __GNUC__ */ diff --git a/newlib/libm/machine/i386/f_llrintf.c b/newlib/libm/machine/i386/f_llrintf.c new file mode 100644 index 000000000..6b2dfb39b --- /dev/null +++ b/newlib/libm/machine/i386/f_llrintf.c @@ -0,0 +1,38 @@ +/* + * ==================================================== + * x87 FP implementation contributed to Newlib by + * Dave Korn, November 2007. This file is placed in the + * public domain. Permission to use, copy, modify, and + * distribute this software is freely granted. + * ==================================================== + */ + +#ifdef __GNUC__ +#if !defined(_SOFT_FLOAT) + +#include + +/* + * Fast math version of llrintf(x) + * Return x rounded to integral value according to the prevailing + * rounding mode. + * Method: + * Using inline x87 asms. + * Exception: + * Governed by x87 FPCR. + */ + +long long int _f_llrintf (float x) +{ + long long int _result; + asm ("fistpll %0" : "=m" (_result) : "t" (x) : "st"); + return _result; +} + +/* For now, we only have the fast math version. */ +long long int llrintf (float x) { + return _f_llrintf(x); +} + +#endif /* !_SOFT_FLOAT */ +#endif /* __GNUC__ */ diff --git a/newlib/libm/machine/i386/f_llrintl.c b/newlib/libm/machine/i386/f_llrintl.c new file mode 100644 index 000000000..610270c3d --- /dev/null +++ b/newlib/libm/machine/i386/f_llrintl.c @@ -0,0 +1,38 @@ +/* + * ==================================================== + * x87 FP implementation contributed to Newlib by + * Dave Korn, November 2007. This file is placed in the + * public domain. Permission to use, copy, modify, and + * distribute this software is freely granted. + * ==================================================== + */ + +#ifdef __GNUC__ +#if !defined(_SOFT_FLOAT) + +#include + +/* + * Fast math version of llrintl(x) + * Return x rounded to integral value according to the prevailing + * rounding mode. + * Method: + * Using inline x87 asms. + * Exception: + * Governed by x87 FPCR. + */ + +long long int _f_llrintl (long double x) +{ + long long int _result; + asm ("fistpll %0" : "=m" (_result) : "t" (x) : "st"); + return _result; +} + +/* For now, we only have the fast math version. */ +long long int llrintl (long double x) { + return _f_llrintl(x); +} + +#endif /* !_SOFT_FLOAT */ +#endif /* __GNUC__ */ diff --git a/newlib/libm/machine/i386/f_lrint.c b/newlib/libm/machine/i386/f_lrint.c new file mode 100644 index 000000000..b8cdabb5d --- /dev/null +++ b/newlib/libm/machine/i386/f_lrint.c @@ -0,0 +1,69 @@ +/* + * ==================================================== + * x87 FP implementation contributed to Newlib by + * Dave Korn, November 2007. This file is placed in the + * public domain. Permission to use, copy, modify, and + * distribute this software is freely granted. + * ==================================================== + */ + +#if defined(__GNUC__) && !defined(_SOFT_FLOAT) + +#include + +/* +FUNCTION +<>, <>, <>---round and convert to long integer +INDEX + lrint +INDEX + lrintf +INDEX + lrintl + +ANSI_SYNOPSIS + #include + long int lrint(double x); + long int lrintf(float x); + long int lrintl(long double x); + +TRAD_SYNOPSIS + ANSI-only. + +DESCRIPTION +The <>, <> and <> functions round <[x]> to the nearest integer value, +according to the current rounding direction. If the rounded value is outside the +range of the return type, the numeric result is unspecified. A range error may +occur if the magnitude of <[x]> is too large. + +RETURNS +These functions return the rounded integer value of <[x]>. +<>, <> and <> return the result as a long integer. + +PORTABILITY +<>, <>, and <> are ANSI. +<> and <> are available on all platforms. +<> is only available on i386 platforms when hardware +floating point support is available and when compiling with GCC. + +*/ + +/* + * Fast math version of lrint(x) + * Return x rounded to integral value according to the prevailing + * rounding mode. + * Method: + * Using inline x87 asms. + * Exception: + * Governed by x87 FPCR. + */ + +long int _f_lrint (double x) +{ + long int _result; + asm ("fistpl %0" : "=m" (_result) : "t" (x) : "st"); + return _result; +} + +#endif /* !__GNUC__ || _SOFT_FLOAT */ + diff --git a/newlib/libm/machine/i386/f_lrintf.c b/newlib/libm/machine/i386/f_lrintf.c new file mode 100644 index 000000000..da8ffa62d --- /dev/null +++ b/newlib/libm/machine/i386/f_lrintf.c @@ -0,0 +1,32 @@ +/* + * ==================================================== + * x87 FP implementation contributed to Newlib by + * Dave Korn, November 2007. This file is placed in the + * public domain. Permission to use, copy, modify, and + * distribute this software is freely granted. + * ==================================================== + */ + +#if defined(__GNUC__) && !defined(_SOFT_FLOAT) + +#include + +/* + * Fast math version of lrintf(x) + * Return x rounded to integral value according to the prevailing + * rounding mode. + * Method: + * Using inline x87 asms. + * Exception: + * Governed by x87 FPCR. + */ + +long int _f_lrintf (float x) +{ + long int _result; + asm ("fistpl %0" : "=m" (_result) : "t" (x) : "st"); + return _result; +} + +#endif /* !__GNUC__ || _SOFT_FLOAT */ + diff --git a/newlib/libm/machine/i386/f_lrintl.c b/newlib/libm/machine/i386/f_lrintl.c new file mode 100644 index 000000000..eae2bca28 --- /dev/null +++ b/newlib/libm/machine/i386/f_lrintl.c @@ -0,0 +1,38 @@ +/* + * ==================================================== + * x87 FP implementation contributed to Newlib by + * Dave Korn, November 2007. This file is placed in the + * public domain. Permission to use, copy, modify, and + * distribute this software is freely granted. + * ==================================================== + */ + +#ifdef __GNUC__ +#if !defined(_SOFT_FLOAT) + +#include + +/* + * Fast math version of lrintl(x) + * Return x rounded to integral value according to the prevailing + * rounding mode. + * Method: + * Using inline x87 asms. + * Exception: + * Governed by x87 FPCR. + */ + +long int _f_lrintl (long double x) +{ + long int _result; + asm ("fistpl %0" : "=m" (_result) : "t" (x) : "st"); + return _result; +} + +/* For now, there is only the fast math version so we use it. */ +long int lrintl (long double x) { + return _f_lrintl(x); +} + +#endif /* !_SOFT_FLOAT */ +#endif /* __GNUC__ */ diff --git a/newlib/libm/machine/i386/f_rint.c b/newlib/libm/machine/i386/f_rint.c new file mode 100644 index 000000000..e335d463c --- /dev/null +++ b/newlib/libm/machine/i386/f_rint.c @@ -0,0 +1,67 @@ +/* + * ==================================================== + * x87 FP implementation contributed to Newlib by + * Dave Korn, November 2007. This file is placed in the + * public domain. Permission to use, copy, modify, and + * distribute this software is freely granted. + * ==================================================== + */ + +#if defined(__GNUC__) && !defined(_SOFT_FLOAT) + +#include + +/* +FUNCTION +<>, <>, <>---round to integer +INDEX + rint +INDEX + rintf +INDEX + rintl + +ANSI_SYNOPSIS + #include + double rint(double x); + float rintf(float x); + long double rintl(long double x); + +TRAD_SYNOPSIS + ANSI-only. + +DESCRIPTION +The <>, <> and <> functions round <[x]> to an integer value +in floating-point format, using the current rounding direction. They may +raise the inexact exception if the result differs in value from the argument. + +RETURNS +These functions return the rounded integer value of <[x]>. + +PORTABILITY +<>, <> and <> are ANSI. +<> and <> are available on all platforms. +<> is only available on i386 platforms when hardware +floating point support is available and when compiling with GCC. + +*/ + +/* + * Fast math version of rint(x) + * Return x rounded to integral value according to the prevailing + * rounding mode. + * Method: + * Using inline x87 asms. + * Exception: + * Governed by x87 FPCR. + */ + +double _f_rint (double x) +{ + double _result; + asm ("frndint" : "=t" (_result) : "0" (x)); + return _result; +} + +#endif /* !__GNUC__ || _SOFT_FLOAT */ + diff --git a/newlib/libm/machine/i386/f_rintf.c b/newlib/libm/machine/i386/f_rintf.c new file mode 100644 index 000000000..a7dabb7f3 --- /dev/null +++ b/newlib/libm/machine/i386/f_rintf.c @@ -0,0 +1,32 @@ +/* + * ==================================================== + * x87 FP implementation contributed to Newlib by + * Dave Korn, November 2007. This file is placed in the + * public domain. Permission to use, copy, modify, and + * distribute this software is freely granted. + * ==================================================== + */ + +#if defined(__GNUC__) && !defined(_SOFT_FLOAT) + +#include + +/* + * Fast math version of rintf(x) + * Return x rounded to integral value according to the prevailing + * rounding mode. + * Method: + * Using inline x87 asms. + * Exception: + * Governed by x87 FPCR. + */ + +float _f_rintf (float x) +{ + float _result; + asm ("frndint" : "=t" (_result) : "0" (x)); + return _result; +} + +#endif /* !__GNUC__ || _SOFT_FLOAT */ + diff --git a/newlib/libm/machine/i386/f_rintl.c b/newlib/libm/machine/i386/f_rintl.c new file mode 100644 index 000000000..0e67739b5 --- /dev/null +++ b/newlib/libm/machine/i386/f_rintl.c @@ -0,0 +1,38 @@ +/* + * ==================================================== + * x87 FP implementation contributed to Newlib by + * Dave Korn, November 2007. This file is placed in the + * public domain. Permission to use, copy, modify, and + * distribute this software is freely granted. + * ==================================================== + */ + +#ifdef __GNUC__ +#if !defined(_SOFT_FLOAT) + +#include + +/* + * Fast math version of rintl(x) + * Return x rounded to integral value according to the prevailing + * rounding mode. + * Method: + * Using inline x87 asms. + * Exception: + * Governed by x87 FPCR. + */ + +long double _f_rintl (long double x) +{ + long double _result; + asm ("frndint" : "=t" (_result) : "0" (x)); + return _result; +} + +/* For now, we only have the fast math version. */ +long double rintl (long double x) { + return _f_rintl(x); +} + +#endif /* !_SOFT_FLOAT */ +#endif /* __GNUC__ */ -- cgit v1.2.3