diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 27 |
1 files changed, 9 insertions, 18 deletions
diff --git a/configure.ac b/configure.ac index cd6f0ed..acefa90 100644 --- a/configure.ac +++ b/configure.ac @@ -161,31 +161,22 @@ AC_COMPILE_IFELSE( AC_LANG_POP([C++]) -# Check for SSE -AC_MSG_CHECKING(for SSE in current arch/CFLAGS) +# Check for march +AC_MSG_CHECKING(if we can add -march=native to CFLAGS) save_CXXFLAGS="$CXXFLAGS" -CXXFLAGS="$CXXFLAGS -msse" -AC_MSG_CHECKING([whether we need to add -msse]) +CXXFLAGS="$CXXFLAGS -march=native" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ -#include <xmmintrin.h> -__m128 testfunc(float *a, float *b) { - return _mm_add_ps(_mm_loadu_ps(a), _mm_loadu_ps(b)); -} +void testfunc(void) {} ]])], -[has_sse=yes], -[has_sse=no] +[supports_march_native=yes], +[supports_march_native=no] ) -AC_MSG_RESULT($has_sse) -if test x"$has_sse" = xno; then +AC_MSG_RESULT($supports_march_native) +if test x"$supports_march_native" = xno; then CXXFLAGS="$save_CXXFLAGS" fi - -AM_CONDITIONAL([HAVE_SSE], [test "x$has_sse" = "xyes"]) - -# TODO: Check for NEON - AC_TYPE_SIGNAL AC_CHECK_FUNCS([bzero floor ftime gettimeofday memset sqrt strchr strerror strtol]) @@ -211,7 +202,7 @@ echo echo enabled="" disabled="" -for feat in with_debug_malloc has_sse enable_fast_math +for feat in with_debug_malloc supports_march_native enable_fast_math do eval var=\$$feat AS_IF([test "x$var" != "xno"], |