search for: has_ss

...ure.ac (working copy) @@ -72,6 +72,22 @@ ) AC_MSG_RESULT($has_alloca) +AC_MSG_CHECKING(for SSE in current arch/CFLAGS) +AC_LINK_IFELSE([ +AC_LANG_PROGRAM([[ +#include <xmmintrin.h> +__m128 testfunc(float *a, float *b) { + return _mm_add_ps(_mm_loadu_ps(a), _mm_loadu_ps(b)); +} +]])], +[ +has_sse=yes +], +[ +has_sse=no +] +) +AC_MSG_RESULT($has_sse) AC_CHECK_HEADERS(sys/soundcard.h sys/audioio.h) @@ -102,12 +118,19 @@ AC_DEFINE([ENABLE_VALGRIND], , [Enable valgrind extra checks]) fi]) -AC_ARG_ENABLE(sse, [ --enable-sse Enable SSE support], [if test "$enableval...

...auto detection should also work if your CFLAGS supports NEON. --- configure.ac | 32 +++++++++++++++++++++++++++++++- 1 files changed, 31 insertions(+), 1 deletions(-) diff --git a/configure.ac b/configure.ac index 255c0b4..08d3d5f 100644 --- a/configure.ac +++ b/configure.ac @@ -89,6 +89,23 @@ has_sse=no ) AC_MSG_RESULT($has_sse) +AC_MSG_CHECKING(for NEON in current arch/CFLAGS) +AC_LINK_IFELSE([ +AC_LANG_PROGRAM([[ +#include <arm_neon.h> +int32x4_t testfunc(int16_t *a, int16_t *b) { + return vmull_s16(vld1_s16(a), vld1_s16(b)); +} +]])], +[ +has_neon=yes +], +[ +has_neon=no +]...

From: Jyri Sarha <jsarha at ti.com> I optimized Speex resampler for NEON capable ARM CPUs. The first patch should speed up resampling on any platform that can spare the increased memory usage. It would be nice to have these merged to the master branch. Please let me know if there is anything I can do to help the the merge. The patches have been rebased on top of master branch in