Fix ax_cc_maxopt.m4

This commit is contained in:
Anthony Green
2011-02-15 15:19:49 -05:00
parent 24b72070c0
commit 8cf8878425
13 changed files with 22048 additions and 1497 deletions

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@@ -23,3 +23,4 @@ ungccify
ios-fixes
bad-abi-fix
msvcc
fix_maxopt

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4546
.pc/fix_maxopt/ChangeLog Normal file

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17225
.pc/fix_maxopt/configure vendored Executable file

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@@ -0,0 +1,180 @@
# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_cc_maxopt.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CC_MAXOPT
#
# DESCRIPTION
#
# Try to turn on "good" C optimization flags for various compilers and
# architectures, for some definition of "good". (In our case, good for
# FFTW and hopefully for other scientific codes. Modify as needed.)
#
# The user can override the flags by setting the CFLAGS environment
# variable. The user can also specify --enable-portable-binary in order to
# disable any optimization flags that might result in a binary that only
# runs on the host architecture.
#
# Note also that the flags assume that ANSI C aliasing rules are followed
# by the code (e.g. for gcc's -fstrict-aliasing), and that floating-point
# computations can be re-ordered as needed.
#
# Requires macros: AX_CHECK_COMPILER_FLAGS, AX_COMPILER_VENDOR,
# AX_GCC_ARCHFLAG, AX_GCC_X86_CPUID.
#
# LICENSE
#
# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
# Copyright (c) 2008 Matteo Frigo
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program 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 General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 11
AC_DEFUN([AX_CC_MAXOPT],
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AX_COMPILER_VENDOR])
AC_REQUIRE([AC_CANONICAL_HOST])
AC_ARG_ENABLE(portable-binary, [AS_HELP_STRING([--enable-portable-binary], [disable compiler optimizations that would produce unportable binaries])],
acx_maxopt_portable=$withval, acx_maxopt_portable=no)
# Try to determine "good" native compiler flags if none specified via CFLAGS
if test "$ac_test_CFLAGS" != "set"; then
CFLAGS=""
case $ax_cv_c_compiler_vendor in
dec) CFLAGS="-newc -w0 -O5 -ansi_alias -ansi_args -fp_reorder -tune host"
if test "x$acx_maxopt_portable" = xno; then
CFLAGS="$CFLAGS -arch host"
fi;;
sun) CFLAGS="-native -fast -xO5 -dalign"
if test "x$acx_maxopt_portable" = xyes; then
CFLAGS="$CFLAGS -xarch=generic"
fi;;
hp) CFLAGS="+Oall +Optrs_ansi +DSnative"
if test "x$acx_maxopt_portable" = xyes; then
CFLAGS="$CFLAGS +DAportable"
fi;;
ibm) if test "x$acx_maxopt_portable" = xno; then
xlc_opt="-qarch=auto -qtune=auto"
else
xlc_opt="-qtune=auto"
fi
AX_CHECK_COMPILER_FLAGS($xlc_opt,
CFLAGS="-O3 -qansialias -w $xlc_opt",
[CFLAGS="-O3 -qansialias -w"
echo "******************************************************"
echo "* You seem to have the IBM C compiler. It is *"
echo "* recommended for best performance that you use: *"
echo "* *"
echo "* CFLAGS=-O3 -qarch=xxx -qtune=xxx -qansialias -w *"
echo "* ^^^ ^^^ *"
echo "* where xxx is pwr2, pwr3, 604, or whatever kind of *"
echo "* CPU you have. (Set the CFLAGS environment var. *"
echo "* and re-run configure.) For more info, man cc. *"
echo "******************************************************"])
;;
intel) CFLAGS="-O3 -ansi_alias"
if test "x$acx_maxopt_portable" = xno; then
icc_archflag=unknown
icc_flags=""
case $host_cpu in
i686*|x86_64*)
# icc accepts gcc assembly syntax, so these should work:
AX_GCC_X86_CPUID(0)
AX_GCC_X86_CPUID(1)
case $ax_cv_gcc_x86_cpuid_0 in # see AX_GCC_ARCHFLAG
*:756e6547:*:*) # Intel
case $ax_cv_gcc_x86_cpuid_1 in
*6a?:*[[234]]:*:*|*6[[789b]]?:*:*:*) icc_flags="-xK";;
*f3[[347]]:*:*:*|*f4[1347]:*:*:*) icc_flags="-xP -xN -xW -xK";;
*f??:*:*:*) icc_flags="-xN -xW -xK";;
esac ;;
esac ;;
esac
if test "x$icc_flags" != x; then
for flag in $icc_flags; do
AX_CHECK_COMPILER_FLAGS($flag, [icc_archflag=$flag; break])
done
fi
AC_MSG_CHECKING([for icc architecture flag])
AC_MSG_RESULT($icc_archflag)
if test "x$icc_archflag" != xunknown; then
CFLAGS="$CFLAGS $icc_archflag"
fi
fi
;;
gnu)
# default optimization flags for gcc on all systems
CFLAGS="-O3 -fomit-frame-pointer"
# -malign-double for x86 systems
AX_CHECK_COMPILER_FLAGS(-malign-double, CFLAGS="$CFLAGS -malign-double")
# -fstrict-aliasing for gcc-2.95+
AX_CHECK_COMPILER_FLAGS(-fstrict-aliasing,
CFLAGS="$CFLAGS -fstrict-aliasing")
# note that we enable "unsafe" fp optimization with other compilers, too
AX_CHECK_COMPILER_FLAGS(-ffast-math, CFLAGS="$CFLAGS -ffast-math")
AX_GCC_ARCHFLAG($acx_maxopt_portable)
;;
esac
if test -z "$CFLAGS"; then
echo ""
echo "********************************************************"
echo "* WARNING: Don't know the best CFLAGS for this system *"
echo "* Use ./configure CFLAGS=... to specify your own flags *"
echo "* (otherwise, a default of CFLAGS=-O3 will be used) *"
echo "********************************************************"
echo ""
CFLAGS="-O3"
fi
AX_CHECK_COMPILER_FLAGS($CFLAGS, [], [
echo ""
echo "********************************************************"
echo "* WARNING: The guessed CFLAGS don't seem to work with *"
echo "* your compiler. *"
echo "* Use ./configure CFLAGS=... to specify your own flags *"
echo "********************************************************"
echo ""
CFLAGS=""
])
fi
])

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@@ -1,487 +0,0 @@
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OTOOL64 = @OTOOL64@
PACKAGE = @PACKAGE@
PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
PACKAGE_NAME = @PACKAGE_NAME@
PACKAGE_STRING = @PACKAGE_STRING@
PACKAGE_TARNAME = @PACKAGE_TARNAME@
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libffi.call/cls_multi_ushortchar.c libffi.call/return_dbl2.c \
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libffi.call/err_bad_abi.c libffi.call/return_dbl1.c \
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libffi.call/cls_double.c libffi.call/many_win32.c \
libffi.call/cls_16byte.c libffi.call/cls_align_double.c \
libffi.call/cls_align_uint16.c libffi.call/cls_9byte1.c \
libffi.call/cls_multi_sshortchar.c libffi.call/cls_multi_ushort.c \
libffi.call/closure_stdcall.c libffi.call/return_fl.c \
libffi.call/strlen_win32.c libffi.call/return_ldl.c \
libffi.call/cls_align_float.c libffi.call/struct3.c \
libffi.call/cls_uchar.c libffi.call/cls_sint.c libffi.call/float2.c \
libffi.call/cls_align_longdouble_split.c \
libffi.call/cls_longdouble_va.c libffi.call/cls_multi_sshort.c \
libffi.call/stret_large.c libffi.call/cls_align_sint16.c \
libffi.call/nested_struct6.c libffi.call/cls_5byte.c \
libffi.call/return_dbl.c libffi.call/cls_20byte.c \
libffi.call/cls_8byte.c libffi.call/pyobjc-tc.c \
libffi.call/cls_24byte.c libffi.call/cls_align_longdouble_split2.c \
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libffi.call/cls_18byte.c libffi.call/closure_fn3.c \
libffi.call/err_bad_typedef.c libffi.call/closure_fn2.c \
libffi.call/struct2.c libffi.call/cls_3byte2.c \
libffi.call/cls_align_longdouble.c libffi.call/cls_20byte1.c \
libffi.call/return_fl3.c libffi.call/cls_align_uint32.c \
libffi.call/problem1.c libffi.call/float4.c \
libffi.call/cls_align_uint64.c libffi.call/struct9.c \
libffi.call/closure_fn5.c libffi.call/cls_align_sint32.c \
libffi.call/closure_fn0.c libffi.call/closure_fn6.c \
libffi.call/struct4.c libffi.call/nested_struct2.c \
libffi.call/cls_6byte.c libffi.call/cls_7byte.c libffi.call/many.c \
libffi.call/struct8.c libffi.call/negint.c libffi.call/struct5.c \
libffi.call/cls_12byte.c libffi.call/cls_double_va.c \
libffi.call/cls_longdouble.c libffi.call/cls_9byte2.c \
libffi.call/nested_struct10.c libffi.call/nested_struct5.c \
libffi.call/huge_struct.c
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View File

@@ -1,3 +1,8 @@
2011-02-15 Anthony Green <green@moxielogic.com>
* m4/ax_cc_maxopt.m4: Don't -malign-double or use -ffast-math.
* configure: Rebuilt.
2011-02-13 Anthony Green <green@moxielogic.com>
* include/ffi_common.h (UNLIKELY, LIKELY): Define.

40
configure vendored
View File

@@ -12240,45 +12240,6 @@ $as_echo "$icc_archflag" >&6; }
# default optimization flags for gcc on all systems
CFLAGS="-O3 -fomit-frame-pointer"
# -malign-double for x86 systems
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -malign-double" >&5
$as_echo_n "checking whether C compiler accepts -malign-double... " >&6; }
if ${ax_cv_c_flags__malign_double+:} false; then :
$as_echo_n "(cached) " >&6
else
ax_save_FLAGS=$CFLAGS
CFLAGS="-malign-double"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
ax_cv_c_flags__malign_double=yes
else
ax_cv_c_flags__malign_double=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
CFLAGS=$ax_save_FLAGS
fi
eval ax_check_compiler_flags=$ax_cv_c_flags__malign_double
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_check_compiler_flags" >&5
$as_echo "$ax_check_compiler_flags" >&6; }
if test "x$ax_check_compiler_flags" = xyes; then
CFLAGS="$CFLAGS -malign-double"
else
:
fi
# -fstrict-aliasing for gcc-2.95+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -fstrict-aliasing" >&5
$as_echo_n "checking whether C compiler accepts -fstrict-aliasing... " >&6; }
@@ -12318,7 +12279,6 @@ else
fi
# note that we enable "unsafe" fp optimization with other compilers, too
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -ffast-math" >&5
$as_echo_n "checking whether C compiler accepts -ffast-math... " >&6; }
if ${ax_cv_c_flags__ffast_math+:} false; then :

View File

@@ -140,14 +140,10 @@ if test "$ac_test_CFLAGS" != "set"; then
# default optimization flags for gcc on all systems
CFLAGS="-O3 -fomit-frame-pointer"
# -malign-double for x86 systems
AX_CHECK_COMPILER_FLAGS(-malign-double, CFLAGS="$CFLAGS -malign-double")
# -fstrict-aliasing for gcc-2.95+
AX_CHECK_COMPILER_FLAGS(-fstrict-aliasing,
CFLAGS="$CFLAGS -fstrict-aliasing")
# note that we enable "unsafe" fp optimization with other compilers, too
AX_CHECK_COMPILER_FLAGS(-ffast-math, CFLAGS="$CFLAGS -ffast-math")
AX_GCC_ARCHFLAG($acx_maxopt_portable)

90
patches/fix_maxopt Normal file
View File

@@ -0,0 +1,90 @@
Index: libffi/ChangeLog
===================================================================
--- libffi.orig/ChangeLog
+++ libffi/ChangeLog
@@ -1,3 +1,8 @@
+2011-02-15 Anthony Green <green@moxielogic.com>
+
+ * m4/ax_cc_maxopt.m4: Don't -malign-double or use -ffast-math.
+ * configure: Rebuilt.
+
2011-02-13 Anthony Green <green@moxielogic.com>
* include/ffi_common.h (UNLIKELY, LIKELY): Define.
Index: libffi/configure
===================================================================
--- libffi.orig/configure
+++ libffi/configure
@@ -12240,45 +12240,6 @@ $as_echo "$icc_archflag" >&6; }
# default optimization flags for gcc on all systems
CFLAGS="-O3 -fomit-frame-pointer"
- # -malign-double for x86 systems
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -malign-double" >&5
-$as_echo_n "checking whether C compiler accepts -malign-double... " >&6; }
-if ${ax_cv_c_flags__malign_double+:} false; then :
- $as_echo_n "(cached) " >&6
-else
-
- ax_save_FLAGS=$CFLAGS
- CFLAGS="-malign-double"
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int
-main ()
-{
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
- ax_cv_c_flags__malign_double=yes
-else
- ax_cv_c_flags__malign_double=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- CFLAGS=$ax_save_FLAGS
-fi
-
-eval ax_check_compiler_flags=$ax_cv_c_flags__malign_double
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_check_compiler_flags" >&5
-$as_echo "$ax_check_compiler_flags" >&6; }
-if test "x$ax_check_compiler_flags" = xyes; then
- CFLAGS="$CFLAGS -malign-double"
-else
- :
-fi
-
-
# -fstrict-aliasing for gcc-2.95+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -fstrict-aliasing" >&5
$as_echo_n "checking whether C compiler accepts -fstrict-aliasing... " >&6; }
@@ -12318,7 +12279,6 @@ else
fi
- # note that we enable "unsafe" fp optimization with other compilers, too
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -ffast-math" >&5
$as_echo_n "checking whether C compiler accepts -ffast-math... " >&6; }
if ${ax_cv_c_flags__ffast_math+:} false; then :
Index: libffi/m4/ax_cc_maxopt.m4
===================================================================
--- libffi.orig/m4/ax_cc_maxopt.m4
+++ libffi/m4/ax_cc_maxopt.m4
@@ -140,14 +140,10 @@ if test "$ac_test_CFLAGS" != "set"; then
# default optimization flags for gcc on all systems
CFLAGS="-O3 -fomit-frame-pointer"
- # -malign-double for x86 systems
- AX_CHECK_COMPILER_FLAGS(-malign-double, CFLAGS="$CFLAGS -malign-double")
-
# -fstrict-aliasing for gcc-2.95+
AX_CHECK_COMPILER_FLAGS(-fstrict-aliasing,
CFLAGS="$CFLAGS -fstrict-aliasing")
- # note that we enable "unsafe" fp optimization with other compilers, too
AX_CHECK_COMPILER_FLAGS(-ffast-math, CFLAGS="$CFLAGS -ffast-math")
AX_GCC_ARCHFLAG($acx_maxopt_portable)

View File

@@ -23,3 +23,4 @@ ungccify
ios-fixes
bad-abi-fix
msvcc
fix_maxopt