[Speex-dev] Fwd: Cannot compile speexdsp 1.2rc3 on ARM64

[Evan JIANG]

Hi Tristan,
   Thank you for your reply. And "./configure --disable-neon" really works
for me.

On Tue, Apr 14, 2015 at 4:29 AM, Tristan Matthews <tmatth at videolan.org>
wrote:

> Hi,
>
> On Sat, Mar 28, 2015 at 2:34 PM, Evan JIANG <firstfan at gmail.com> wrote:
>
>> Hi all,
>>
>>    (Sorry that may be duplicated that I was not a mail-list member
>> before, so last mail sent failed)
>>
>>     I build successfully with speex-1.2rc2. And with speexdsp 1.2rc3, I
>> build with i386, X86_64, armv7 and armv7s all passed.
>>    But when I build for ARM64 (for iPhone 6), it failed with:
>> /Applications/Xcode.app/Contents/Developer/usr/bin/make  all-recursive
>> Making all in libspeexdsp
>>   CC       preprocess.lo
>>   CC       jitter.lo
>>   CC       mdf.lo
>>   CC       fftwrap.lo
>>   CC       filterbank.lo
>>   CC       resample.lo
>> In file included from resample.c:104:
>> ./resample_neon.h:134:12: error: unknown register name 'q0' in asm
>>          : "q0");
>>            ^
>> ./resample_neon.h:195:13: error: invalid output constraint '+l' in asm
>>                     [len] "+l" (len), [remainder] "+l" (remainder)
>>                           ^
>> 2 errors generated.
>> make[2]: *** [resample.lo] Error 1
>> make[1]: *** [all-recursive] Error 1
>> make: *** [all] Error 2
>>
>>
>> As I googled out, I found it's said:
>>
>> arm64 has a totally different instruction set.
>>
>> See: http://people.linaro.org/~rikuvoipio/aarch64-talk/
>>
>> The NEON assembly code needs a rewrite.
>>
>>
>>
>> But I'm not familiar with ASM code. Could anyone help to fix that?
>>
>
> For the time being, you can always disable NEON code on that platform with:
> ./configure --disable-neon
>
>
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