eden-emu/opus
15
0
Fork 0
mirror of https://github.com/xiph/opus.git synced 2025-05-30 15:17:42 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Test the compiler configuration, not the assembler

Browse source 
With gcc-4.4 at least, the raw asm.s files will always successfully
compile even if the default -march for the compiler would not support
those instructions.  So switch to testing the inline asm versions,
where the compiler will barf if they aren't supported by the default
arch if no -march is explicitly given, or if they aren't supported by
the requested -march when it is.
This commit is contained in:
Ron 2013-06-04 15:21:43 +09:30
parent 58d80ab9ea
commit aa6a1a16ad
1 changed files with 15 additions and 54 deletions
Download patch file Download diff file Expand all files Collapse all files

69
m4/as-gcc-inline-assembly.m4
View file

@ -4,8 +4,6 @@ dnl autostars m4 macro for detection of gcc inline assembly
dnl David Schleef <ds@schleef.org>
dnl $Id$
dnl AS_COMPILER_FLAG(ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])
dnl Tries to compile with the given CFLAGS.
dnl Runs ACTION-IF-ACCEPTED if the compiler can compile with the flags,
@ -33,42 +31,15 @@ __asm__ (""::) ], [flag_ok=yes], [flag_ok=no])
AC_MSG_RESULT([$flag_ok])
])
AC_DEFUN([AC_TRY_ASSEMBLE],
[ac_c_ext=$ac_ext
ac_ext=${ac_s_ext-s}
cat > conftest.$ac_ext <<EOF
.file "configure"
[$1]
EOF
if AC_TRY_EVAL(ac_compile); then
ac_ext=$ac_c_ext
ifelse([$2], , :, [ $2
rm -rf conftest*])
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.$ac_ext >&AC_FD_CC
ac_ext=$ac_c_ext
ifelse([$3], , , [ rm -rf conftest*
$3
])dnl
fi
rm -rf conftest*])
AC_DEFUN([AS_ASM_ARM_NEON],
[
AC_MSG_CHECKING([if assembler supports NEON instructions on ARM])
AC_TRY_ASSEMBLE([vorr d0,d0,d0], [flag_ok=yes], [flag_ok=no])
if test "X$flag_ok" = Xyes ; then
$1
true
else
$2
true
fi
AC_MSG_RESULT([$flag_ok])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__("vorr d0,d0,d0")])],
[AC_MSG_RESULT([yes])
$1],
[AC_MSG_RESULT([no])
$2])
])
@ -76,16 +47,11 @@ AC_DEFUN([AS_ASM_ARM_MEDIA],
[
AC_MSG_CHECKING([if assembler supports ARMv6 media instructions on ARM])
AC_TRY_ASSEMBLE([shadd8 r3,r3,r3], [flag_ok=yes], [flag_ok=no])
if test "X$flag_ok" = Xyes ; then
$1
true
else
$2
true
fi
AC_MSG_RESULT([$flag_ok])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__("shadd8 r3,r3,r3")])],
[AC_MSG_RESULT([yes])
$1],
[AC_MSG_RESULT([no])
$2])
])
@ -93,14 +59,9 @@ AC_DEFUN([AS_ASM_ARM_EDSP],
[
AC_MSG_CHECKING([if assembler supports EDSP instructions on ARM])
AC_TRY_ASSEMBLE([qadd r3,r3,r3], [flag_ok=yes], [flag_ok=no])
if test "X$flag_ok" = Xyes ; then
$1
true
else
$2
true
fi
AC_MSG_RESULT([$flag_ok])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[__asm__("qadd r3,r3,r3")])],
[AC_MSG_RESULT([yes])
$1],
[AC_MSG_RESULT([no])
$2])
])