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Hi all,
Thanks for the comments, Richard.
Here is an updated patch using the condition:
#if __ARM_ARCH >= 8 && !defined (__SOFTFP__)
No changes otherwise.
Thanks,
Kyrill
newlib/ChangeLog
2012-12-04 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* configure.host: Define libm_machine_dir value for arm.
* libm/machine/configure.in: Add arm to libm machines list.
* libm/machine/configure: Regenerate.
* libm/machine/arm/Makefile.am: New file.
* libm/machine/arm/Makefile.in: Generated.
* libm/machine/arm/aclocal.m4: Generated.
* libm/machine/arm/configure: Generated.
* libm/machine/arm/configure.in: New file.
* libm/machine/arm/s_ceil.c: Likewise.
* libm/machine/arm/s_floor.c: Likewise.
* libm/machine/arm/s_nearbyint.c: Likewise.
* libm/machine/arm/s_rint.c: Likewise.
* libm/machine/arm/s_round.c: Likewise.
* libm/machine/arm/s_trunc.c: Likewise.
* libm/machine/arm/sf_ceil.c: Likewise.
* libm/machine/arm/sf_floor.c: Likewise.
* libm/machine/arm/sf_nearbyint.c: Likewise.
* libm/machine/arm/sf_rint.c: Likewise.
* libm/machine/arm/sf_round.c: Likewise.
* libm/machine/arm/sf_trunc.c: Likewise.
> -----Original Message-----
> From: Richard Earnshaw
> Sent: 04 December 2012 10:47
> To: Kyrylo Tkachov
> Cc: newlib@sourceware.org; corinna@vinschen.de; nickc@redhat.com
> Subject: Re: [PATCH][newlib][ARM] Add arm directory to libm, use vrint
> for standard rounding functions
>
> On 16/11/12 11:38, Kyrylo Tkachov wrote:
> > Hi all,
> >
> > This patch adds ARM-specific support for the single and double
> precision
> > libm functions: ceil, floor, nearbyint, rint, round, trunk.
> > These functions can be implemented using the vrint family of
> instructions
> > introduced in ARMv8 so we use those when the target supports it,
> otherwise
> > we revert to the generic implementations.
> > If approved, can the commiter please generate/regenerate the
> appropriate
> > files?
> > An arm directory is added to libm/machine. The following files need
> to be
> > generated with autoconf/automake:
> > * libm/machine/arm/Makefile.in
> > * libm/machine/arm/aclocal.m4
> > * libm/machine/arm/configure
> >
> > The file
> > * libm/machine/configure needs to be regenerated.
> >
> > The patch has been tested with an arm-eabi toolchain running on a
> model. It
> > is for the AArch32 / ARM backend of newlib.
> >
> > Thanks,
> > Kyrill
> >
> > P.S. I had sent this to a wrong address before... Sorry if you
> received this
> > multiple times.
> >
> > newlib/ChangeLog
> >
> > 2012-11-14 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
> >
> > * configure.host: Define libm_machine_dir value for arm.
> > * libm/machine/configure.in: Add arm to libm machines list.
> > * libm/machine/configure: Regenerate.
> > * libm/machine/arm/Makefile.am: New file.
> > * libm/machine/arm/Makefile.in: Generated.
> > * libm/machine/arm/aclocal.m4: Generated.
> > * libm/machine/arm/configure: Generated.
> > * libm/machine/arm/configure.in: New file.
> > * libm/machine/arm/s_ceil.c: Likewise.
> > * libm/machine/arm/s_floor.c: Likewise.
> > * libm/machine/arm/s_nearbyint.c: Likewise.
> > * libm/machine/arm/s_rint.c: Likewise.
> > * libm/machine/arm/s_round.c: Likewise.
> > * libm/machine/arm/s_trunc.c: Likewise.
> > * libm/machine/arm/sf_ceil.c: Likewise.
> > * libm/machine/arm/sf_floor.c: Likewise.
> > * libm/machine/arm/sf_nearbyint.c: Likewise.
> > * libm/machine/arm/sf_rint.c: Likewise.
> > * libm/machine/arm/sf_round.c: Likewise.
> > * libm/machine/arm/sf_trunc.c: Likewise.
> >
> >
>
> Nearly, but not quite.
>
> When building soft-float, we need to fall back to the standard C
> implementations. Secondly, for future proofing, you should use
> __ARM_ARCH rather than testing a specific architecture version.
>
> So instead of
>
> #ifdef __ARM_ARCH_8A__
>
> use something like:
>
> #if __ARM_ARCH >= 8 && !defined(__SOFTFP__)
>
> R.
>
>
> > newlib_vrint2.txt
> >
> >
> > --- a/newlib/configure.host
> > +++ b/newlib/configure.host
> > @@ -104,6 +104,7 @@ case "${host_cpu}" in
> > ;;
> > arm*)
> > machine_dir=arm
> > + libm_machine_dir=arm
> > ;;
> > avr*)
> > newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -mcall-
> prologues"
> > diff --git a/newlib/libm/machine/arm/Makefile.am
> b/newlib/libm/machine/arm/Makefile.am
> > new file mode 100644
> > index 0000000..f0ab84f
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/Makefile.am
> > @@ -0,0 +1,31 @@
> > +## Process this file with automake to generate Makefile.in
> > +
> > +AUTOMAKE_OPTIONS = cygnus
> > +
> > +INCLUDES = -I $(newlib_basedir)/../newlib/libm/common
> $(NEWLIB_CFLAGS) \
> > + $(CROSS_CFLAGS) $(TARGET_CFLAGS)
> > +
> > +LIB_SOURCES = \
> > + s_ceil.c \
> > + s_floor.c \
> > + s_nearbyint.c \
> > + s_rint.c \
> > + s_round.c \
> > + s_trunc.c \
> > + sf_ceil.c \
> > + sf_floor.c \
> > + sf_nearbyint.c \
> > + sf_rint.c \
> > + sf_round.c \
> > + sf_trunc.c
> > +
> > +noinst_LIBRARIES = lib.a
> > +lib_a_SOURCES = $(LIB_SOURCES)
> > +lib_a_CFLAGS = $(AM_CFLAGS)
> > +lib_a_CCASFLAGS = $(AM_CCASFLAGS)
> > +noinst_DATA =
> > +
> > +include $(srcdir)/../../../Makefile.shared
> > +
> > +ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
> > +CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host
> > diff --git a/newlib/libm/machine/arm/configure.in
> b/newlib/libm/machine/arm/configure.in
> > new file mode 100644
> > index 0000000..acbbadc
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/configure.in
> > @@ -0,0 +1,14 @@
> > +dnl This is the newlib/libm/machine/arm configure.in file.
> > +dnl Process this file with autoconf to produce a configure script.
> > +
> > +AC_PREREQ(2.59)
> > +AC_INIT([newlib],[NEWLIB_VERSION])
> > +AC_CONFIG_SRCDIR([Makefile.am])
> > +
> > +dnl Can't be done in NEWLIB_CONFIGURE because that confuses
> automake.
> > +AC_CONFIG_AUX_DIR(../../../..)
> > +
> > +NEWLIB_CONFIGURE(../../..)
> > +
> > +AC_CONFIG_FILES([Makefile])
> > +AC_OUTPUT
> > diff --git a/newlib/libm/machine/arm/s_ceil.c
> b/newlib/libm/machine/arm/s_ceil.c
> > new file mode 100644
> > index 0000000..e1d33b7
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/s_ceil.c
> > @@ -0,0 +1,40 @@
> > +/* s_ceil.c -- define ceil
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +double
> > +ceil (double x)
> > +{
> > + double result;
> > + asm volatile ( "vrintp.f64\t%P0, %P1" : "=w" (result) : "w" (x) );
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../math/s_ceil.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/s_floor.c
> b/newlib/libm/machine/arm/s_floor.c
> > new file mode 100644
> > index 0000000..49f7dff
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/s_floor.c
> > @@ -0,0 +1,40 @@
> > +/* s_floor.c -- define floor
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +double
> > +floor (double x)
> > +{
> > + double result;
> > + asm volatile ("vrintm.f64\t%P0, %P1" : "=w" (result) : "w" (x));
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../math/s_floor.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/s_nearbyint.c
> b/newlib/libm/machine/arm/s_nearbyint.c
> > new file mode 100644
> > index 0000000..eacb33c
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/s_nearbyint.c
> > @@ -0,0 +1,40 @@
> > +/* s_nearbyint.c -- define nearbyint
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +double
> > +nearbyint (double x)
> > +{
> > + double result;
> > + asm volatile ("vrintr.f64\t%P0, %P1" : "=w" (result) : "w" (x));
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../common/s_nearbyint.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/s_rint.c
> b/newlib/libm/machine/arm/s_rint.c
> > new file mode 100644
> > index 0000000..01d6997
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/s_rint.c
> > @@ -0,0 +1,40 @@
> > +/* s_rint.c -- define rint
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +double
> > +rint (double x)
> > +{
> > + double result;
> > + asm volatile ("vrintx.f64\t%P0, %P1" : "=w" (result) : "w" (x));
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../common/s_rint.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/s_round.c
> b/newlib/libm/machine/arm/s_round.c
> > new file mode 100644
> > index 0000000..9e378c8
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/s_round.c
> > @@ -0,0 +1,40 @@
> > +/* s_round.c -- define round
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +double
> > +round (double x)
> > +{
> > + double result;
> > + asm volatile ("vrinta.f64\t%P0, %P1" : "=w" (result) : "w" (x));
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../common/s_round.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/s_trunc.c
> b/newlib/libm/machine/arm/s_trunc.c
> > new file mode 100644
> > index 0000000..a58cbc6
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/s_trunc.c
> > @@ -0,0 +1,40 @@
> > +/* s_trunc.c -- define trunc
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +double
> > +trunc (double x)
> > +{
> > + double result;
> > + asm volatile ("vrintz.f64\t%P0, %P1" : "=w" (result) : "w" (x));
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../common/s_trunc.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/sf_ceil.c
> b/newlib/libm/machine/arm/sf_ceil.c
> > new file mode 100644
> > index 0000000..61a2aad
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/sf_ceil.c
> > @@ -0,0 +1,40 @@
> > +/* sf_ceil.c -- define ceilf
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +float
> > +ceilf (float x)
> > +{
> > + float result;
> > + asm volatile ( "vrintp.f32\t%0, %1" : "=t" (result) : "t" (x) );
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../math/sf_ceil.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/sf_floor.c
> b/newlib/libm/machine/arm/sf_floor.c
> > new file mode 100644
> > index 0000000..65a89b1
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/sf_floor.c
> > @@ -0,0 +1,40 @@
> > +/* sf_floor.c -- define floorf
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +float
> > +floorf (float x)
> > +{
> > + float result;
> > + asm volatile ( "vrintm.f32\t%0, %1" : "=t" (result) : "t" (x) );
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../math/sf_floor.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/sf_nearbyint.c
> b/newlib/libm/machine/arm/sf_nearbyint.c
> > new file mode 100644
> > index 0000000..5fdcb65
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/sf_nearbyint.c
> > @@ -0,0 +1,40 @@
> > +/* sf_nearbyint.c -- define nearbyintf
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +float
> > +nearbyintf (float x)
> > +{
> > + float result;
> > + asm volatile ("vrintr.f32\t%0, %1" : "=t" (result) : "t" (x));
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../common/sf_nearbyint.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/sf_rint.c
> b/newlib/libm/machine/arm/sf_rint.c
> > new file mode 100644
> > index 0000000..f425d61
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/sf_rint.c
> > @@ -0,0 +1,40 @@
> > +/* sf_rint.c -- define rintf
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +float
> > +rintf (float x)
> > +{
> > + float result;
> > + asm volatile ("vrintx.f32\t%0, %1" : "=t" (result) : "t" (x));
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../common/sf_rint.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/sf_round.c
> b/newlib/libm/machine/arm/sf_round.c
> > new file mode 100644
> > index 0000000..3217ea3
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/sf_round.c
> > @@ -0,0 +1,40 @@
> > +/* sf_round.c -- define roundf
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +float
> > +roundf (float x)
> > +{
> > + float result;
> > + asm volatile ("vrinta.f32\t%0, %1" : "=t" (result) : "t" (x));
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../common/sf_round.c"
> > +#endif
> > diff --git a/newlib/libm/machine/arm/sf_trunc.c
> b/newlib/libm/machine/arm/sf_trunc.c
> > new file mode 100644
> > index 0000000..bb4e134
> > --- /dev/null
> > +++ b/newlib/libm/machine/arm/sf_trunc.c
> > @@ -0,0 +1,40 @@
> > +/* sf_trunc.c -- define truncf
> > + Copyright (c) 2012 ARM Ltd. All rights reserved.
> > +
> > + Redistribution and use in source and binary forms, with or
> without
> > + modification, are permitted provided that the following
> conditions
> > + are met:
> > + 1. Redistributions of source code must retain the above copyright
> > + notice, this list of conditions and the following disclaimer.
> > + 2. Redistributions in binary form must reproduce the above
> copyright
> > + notice, this list of conditions and the following disclaimer
> in the
> > + documentation and/or other materials provided with the
> distribution.
> > + 3. The name of the company may not be used to endorse or promote
> > + products derived from this software without specific prior
> written
> > + permission.
> > +
> > + THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR
> IMPLIED
> > + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
> OF
> > + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> DISCLAIMED.
> > + IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL,
> > + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
> LIMITED
> > + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
> DATA, OR
> > + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
> THEORY OF
> > + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> (INCLUDING
> > + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
> THIS
> > + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
> > +
> > +#ifdef __ARM_ARCH_8A__
> > +#include <math.h>
> > +
> > +float
> > +truncf (float x)
> > +{
> > + float result;
> > + asm volatile ("vrintz.f32\t%0, %1" : "=t" (result) : "t" (x));
> > + return result;
> > +}
> > +
> > +#else
> > +#include "../../common/sf_trunc.c"
> > +#endif
> > diff --git a/newlib/libm/machine/configure.in
> b/newlib/libm/machine/configure.in
> > index b236491..85c5c41 100644
> > --- a/newlib/libm/machine/configure.in
> > +++ b/newlib/libm/machine/configure.in
> > @@ -26,6 +26,7 @@ machlib=
> > if test -n "${libm_machine_dir}"; then
> > case ${libm_machine_dir} in
> > aarch64) AC_CONFIG_SUBDIRS(aarch64) ;;
> > + arm) AC_CONFIG_SUBDIRS(arm) ;;
> > i386) AC_CONFIG_SUBDIRS(i386) ;;
> > spu) AC_CONFIG_SUBDIRS(spu) ;;
> > esac;
> >
Attachment:
newlib_vrint2.txt
Description: Text document
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