diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc32/fpu')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/fpu/configure | 29 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc32/fpu/configure.ac | 18 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc32/fpu/fix-int-fp-convert-zero.h | 28 |
3 files changed, 75 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/fpu/configure b/sysdeps/powerpc/powerpc32/fpu/configure new file mode 100644 index 0000000000..69a151b2c0 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/fpu/configure @@ -0,0 +1,29 @@ +# This file is generated from configure.ac by Autoconf. DO NOT EDIT! + # Local configure fragment for sysdeps/powerpc/powerpc32/fpu. + +# Test whether integer to floating point conversions use fcfid. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fcfid use" >&5 +$as_echo_n "checking for fcfid use... " >&6; } +if ${libc_cv_ppc_fcfid+:} false; then : + $as_echo_n "(cached) " >&6 +else + echo 'double foo (int x) { return (double) x; }' > conftest.c +libc_cv_ppc_fcfid=no +if { ac_try='${CC-cc} -S $CFLAGS conftest.c -o conftest.s 1>&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + if grep '[ ]fcfid' conftest.s > /dev/null 2>&1; then + libc_cv_ppc_fcfid=yes + fi +fi +rm -rf conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ppc_fcfid" >&5 +$as_echo "$libc_cv_ppc_fcfid" >&6; } +if test $libc_cv_ppc_fcfid = yes; then + $as_echo "#define HAVE_PPC_FCFID 1" >>confdefs.h + +fi diff --git a/sysdeps/powerpc/powerpc32/fpu/configure.ac b/sysdeps/powerpc/powerpc32/fpu/configure.ac new file mode 100644 index 0000000000..e596e793ae --- /dev/null +++ b/sysdeps/powerpc/powerpc32/fpu/configure.ac @@ -0,0 +1,18 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/powerpc/powerpc32/fpu. + +# Test whether integer to floating point conversions use fcfid. +AC_CACHE_CHECK([for fcfid use], [libc_cv_ppc_fcfid], [dnl +echo 'double foo (int x) { return (double) x; }' > conftest.c +libc_cv_ppc_fcfid=no +if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then +changequote(,)dnl + if grep '[ ]fcfid' conftest.s > /dev/null 2>&1; then + libc_cv_ppc_fcfid=yes + fi +changequote([,])dnl +fi +rm -rf conftest*]) +if test $libc_cv_ppc_fcfid = yes; then + AC_DEFINE([HAVE_PPC_FCFID]) +fi diff --git a/sysdeps/powerpc/powerpc32/fpu/fix-int-fp-convert-zero.h b/sysdeps/powerpc/powerpc32/fpu/fix-int-fp-convert-zero.h new file mode 100644 index 0000000000..9ab8faddb6 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/fpu/fix-int-fp-convert-zero.h @@ -0,0 +1,28 @@ +/* Fix for conversion of integer 0 to floating point. PowerPC version. + Copyright (C) 2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef FIX_INT_FP_CONVERT_ZERO_H +#define FIX_INT_FP_CONVERT_ZERO_H 1 + +/* The code sequences GCC generates for conversion of integers to + floating point result in -0 instead of +0 in FE_DOWNWARD mode when + the fcfid instruction is not used, as of GCC 5. See + <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67771>. */ +#define FIX_INT_FP_CONVERT_ZERO (!HAVE_PPC_FCFID) + +#endif /* fix-int-fp-convert-zero.h */ |