similar to: configure patch to check for SSE

From: Jyri Sarha <jsarha at ti.com> Use --enable-neon to force NEON optimization on. The 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 @@

I'm aware of the problem, but I don't know how to get autoconf to handle that properly. If someone knows how to make that work with autoconf even with non-gcc compilers and with default CFLAGS, I'm interested. Jean-Marc Le jeu 01/04/2004 à 17:21, Michael T. Dean a écrit : > When compiling Speex 1.1.4 with GCC 3.3.2, the option -msse must be > added to the CFLAGS in

On Fri, Apr 02, 2004 at 12:33:13AM -0500, Jean-Marc Valin wrote: > Do you have any sample code for that? Also, how do you tell autoconf to > append '-msse' without running into problems when CFLAGS is not set (and > usually defaults to -g -O2, but not always). Example patch attached. It only tries if the use passes --enable-sse; testing by target arch as Aron suggested is

Erik de Castro Lopo <mle+la at mega-nerd.com> wrote: > The biggest of these tweaks weas to disable the intrinsics version > fero FLAC__CPU_IA32 because I couldn't get this to compile on > i386-linux (and we have the nasm versions). Still open to re-enabling > this if someone can get it to work. I know you're a skilled programmer, but... maybe you forgot to add -msse

Here is code to add to configure.in to do what you want. It preserves CFLAGS and uses that var to hold the sse enable flags. You can subset this under the exisiting AC_ARG for sse or just make it do it all the time. If you notice the i?86, that means any x86 platform target will have it enabled. You can change that i686, but keep in mind that some distros compile/target for i386 on the glibc

Jean-Marc, Are you sure that you don't need to add just -msse to enable the intrinsics rather than a full fledged -march=pentium3? I did some playing around and I can get intrinsics code to compile with -march=i686 -msse on linux with that. Check out:

When compiling Speex 1.1.4 with GCC 3.3.2, the option -msse must be added to the CFLAGS in libspeex/Makefile. GCC 3.1.1 added a new option "-msse" (see http://gcc.gnu.org/gcc-3.1/changes.html , specifically under "New Targets and Target Specific Improvements") to enable SSE instructions within the compiler's output (for appropriate architectures). Compiling speex on

OS SSE support is now mandatory, so the description of --disable-sse option isn't correct now (actually, it wasn't fully correct even before this). *Currently all it does is disables -msse2 flag* The relevant parts of configure.ac: AC_ARG_ENABLE(sse, AC_HELP_STRING([--disable-sse], [Disable SSE if the OS does not support SSE instructions]), [case "${enableval}" in yes)

Actually, I prefer having the user explicitly specify --enable-sse because you might want to compile for other machines than what you have. Also, any idea what happens if the user already has CFLAGS=-O2 defined (and you add -O3)? Last thing, how do you check whether gcc accepts -msse? Jean-Marc Le ven 02/04/2004 à 00:40, Aron Rosenberg a écrit : > Here is code to add to configure.in

lvqcl wrote: > Erik de Castro Lopo <mle+la at mega-nerd.com> wrote: > > > The biggest of these tweaks weas to disable the intrinsics version > > fero FLAC__CPU_IA32 because I couldn't get this to compile on > > i386-linux (and we have the nasm versions). Still open to re-enabling > > this if someone can get it to work. > > > I know you're a

On Fri, Apr 02, 2004 at 12:08:52AM -0500, Jean-Marc Valin wrote: > I'm aware of the problem, but I don't know how to get autoconf to handle > that properly. If someone knows how to make that work with autoconf even > with non-gcc compilers and with default CFLAGS, I'm interested. It's easy enough to test whether gcc will accept -msse and ifdef out the intrinsics code

[...] checking for getopt_long... yes checking for main in -lwinmm... yes checking for short... yes checking size of short... configure: error: cannot compute sizeof (short), 77 See `config.log' for more details. I attached the config.log file to this mail. Regards, -- Pierre. -------------- next part -------------- This file contains any messages produced by compilers while running

Erik de Castro Lopo <mle+la at mega-nerd.com> wrote: >> -msse for SSE code, -msse2 for SSE2 code, -msse4.1 for SSE4.1 code > > Yes, that was it. Brain fart. These flags were not needed on x86_64. > > Erik But now all C code is compiled with -msse2 and it won't work on older CPUs. Isn't it better to compile only necessary files with this flag?

Le jeu 15/01/2004 à 15:30, Daniel Vogel a écrit : > Unrelated, but please use SSE/MMX/... intrinsics on Windows instead of using > inline assembly so you also get the speed benefit on Win64. OK, so here's a first start. I've translated to intrinsics the asm I sent 1-2 days ago. The result is about 5% slower than the pure asm approach, so it's not too bad (SSE asm is 2x faster

Unable to test on win32 at the moment, please give this a try. Feedback welcome. Avoids crashes due to unaligned ops when built with mingw. --- src/libFLAC/include/private/cpu.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/src/libFLAC/include/private/cpu.h b/src/libFLAC/include/private/cpu.h index 8927897..bd40012 100644 --- a/src/libFLAC/include/private/cpu.h +++

I just uploaded a diff I made for libvorbis to http://www.fefe.de/diffs/libvorbis-1.0-simd.diff.bz2 It adds a 3dnow! decoding speedup (about 10%), SSE decoding speedup (about 20%) and SSE encoding speedup (about 25%). The code selection happens purely at compile time, no CPU flag detection or so. I figure someone else will have to do that, I'm short on time. To activate 3dnow!, add

Why does GCC produce faster code using "-march=pentium2 -mtune=pentium4" on a Pentium 4 chip versus plain -march=pentium4? Try it... CPUTYPE=pentium2 CFLAGS+= -mtune=pentium4 COPTFLAGS+= -mtune=pentium4 -- BSD Podcasts @ http://bsdtalk.blogspot.com/

This patch cleans up the vorbis-tools Makefile.am files so they work with both automake 1.4 and 1.6. Some changes to configure.in were also needed in order to get things to work (and to fix some ac 2.50 issues). Please remove config.h from cvs as it is a generated file and empty anyway. automake 1.6 isn't really incompatable with 1.4, it's just more picky about you sticking to the rules:

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

All, Attached is a patch that does two things. First it makes the use of the current SSE code a run time option through the use of speex_decoder_ctl() and speex_encoder_ctl It does this twofold. First there is a modification to the configure.in script which introduces a check based upon platform. It will compile in the sse assembly if you are on an i?86 based platform by making a