I have a question about neon!! =)

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Nov 30, 2015, 5:23:53 PM11/30/15

to android-ndk

Dear Android Developers!

Nice to meet you :)

To learn android neon, I wrote a sample code.

But I gave an error message.

void NeonCall(char *buffer) {
   char *str;
   uint16_t in[8] = {0, 1, 2, 3, 4, 5, 6, 7};
   uint16_t out[8];

r = vld1q_u16(&in[0]);

vst1q_u16(&out[0], r); <- Here came error message

}

Error message is Invalid Argument.

I don't understand why it occurs.

When I tried to use vld1q_u16 only, It works correctly. the value of r is correct.

If you know what the problem is, Please teach me :)

Thanks in advance!

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Nov 30, 2015, 5:26:19 PM11/30/15

to android-ndk

Can you please give the error message?

It looks like r is not declared. Also buffer and str are unused.

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Jan 17, 2016, 1:59:24 PM1/17/16

to android-ndk

make sure r is declared correctly as uint16x8_t r. Your snippet compiles for me with gradle experimental plugin 0.2.0.