ref: 4997a29c861e5bbd7d00a8a375a65160b3f6a695
dir: /vpx_dsp/ppc/inv_txfm_vsx.h/
#include "vpx_dsp/ppc/types_vsx.h"
void vpx_round_store4x4_vsx(int16x8_t *in, int16x8_t *out, uint8_t *dest,
int stride);
void vpx_idct4_vsx(int16x8_t *in, int16x8_t *out);
void vp9_iadst4_vsx(int16x8_t *in, int16x8_t *out);
void vpx_round_store8x8_vsx(int16x8_t *in, uint8_t *dest, int stride);
void vpx_idct8_vsx(int16x8_t *in, int16x8_t *out);
void vp9_iadst8_vsx(int16x8_t *in, int16x8_t *out);