[flac-dev] x86_64 SSE2/SSE41 optim not used

[lvqcl]

Olivier Tristan wrote:

> In stream_decoder.c when assigning lpc restore function,
> only  IA32 processor benefits from SS2 and SSE4.1 optimization.
>
> Shouldn't it be the case for x86_64 processor as well ?

I tried, and it didn't make decoding faster. (And even SSE4.1 for IA-32 is... questionable)

OTOH, flac decoding is really very fast. It's very hard to make it even faster.