Add ASM function FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_16.

For the 32 bit x86 ASM functions there were already versions of this
function for lags (N = 4, 8, 12). They require lpc_order less than N.
The best compression preset (flac -8) uses lpc_order up to 12; it
means that during encoding FLAC also uses unaccelerated C function.

Patch-from: lvqcl <lvqcl.mail@gmail.com>
Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
3 files changed