diff options
Diffstat (limited to 'internal/output_sse.h')
| -rw-r--r-- | internal/output_sse.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/internal/output_sse.h b/internal/output_sse.h index 75aebfd..6ea3290 100644 --- a/internal/output_sse.h +++ b/internal/output_sse.h @@ -535,6 +535,27 @@ struct StoreFinalOutputImpl<RegBlockUint8<8, 8>, DstType> { } }; +// Specialization for MatrixMap, for performance. +template <typename tScalar, MapOrder tOrder> +struct StoreFinalOutputImpl<RegBlockUint8<8, 8>, MatrixMap<tScalar, tOrder>> { + static void Run(const RegBlockUint8<8, 8>& src, + MatrixMap<tScalar, tOrder>* dst, int row, int col) { + std::uint8_t buf[64]; + StoreUint8x16(buf, src.buf.reg[0]); + StoreUint8x16(buf + 16, src.buf.reg[1]); + StoreUint8x16(buf + 32, src.buf.reg[2]); + StoreUint8x16(buf + 48, src.buf.reg[3]); + // Make a local copy so that the compiler can prove that data_ does not + // alias &data_ or &stride_. + MatrixMap<tScalar, tOrder> local = *dst; + for (int c = 0; c < 8; c++) { + for (int r = 0; r < 8; r++) { + *local.data(row + r, col + c) = buf[r + 8 * c]; + } + } + } +}; + } // namespace gemmlowp #endif // GEMMLOWP_INTERNAL_OUTPUT_SSE_H_ |