void test_vshls16 (void) { int16x4_t out_int16x4_t; int16x4_t arg0_int16x4_t; int16x4_t arg1_int16x4_t; out_int16x4_t = vshl_s16 (arg0_int16x4_t, arg1_int16x4_t); }
inline void ClampBufferToS16(s16 *out, const s32 *in, size_t size, s8 volShift) { #ifdef _M_SSE // Size will always be 16-byte aligned as the hwBlockSize is. while (size >= 8) { __m128i in1 = _mm_loadu_si128((__m128i *)in); __m128i in2 = _mm_loadu_si128((__m128i *)(in + 4)); __m128i packed = _mm_packs_epi32(in1, in2); if (useShift) { packed = _mm_srai_epi16(packed, volShift); } _mm_storeu_si128((__m128i *)out, packed); out += 8; in += 8; size -= 8; } #elif PPSSPP_ARCH(ARM_NEON) int16x4_t signedVolShift = vdup_n_s16 (-volShift); // Can only dynamic-shift right, but by a signed integer while (size >= 8) { int32x4_t in1 = vld1q_s32(in); int32x4_t in2 = vld1q_s32(in + 4); int16x4_t packed1 = vqmovn_s32(in1); int16x4_t packed2 = vqmovn_s32(in2); if (useShift) { packed1 = vshl_s16(packed1, signedVolShift); packed2 = vshl_s16(packed2, signedVolShift); } vst1_s16(out, packed1); vst1_s16(out + 4, packed2); out += 8; in += 8; size -= 8; } #endif // This does the remainder if SIMD was used, otherwise it does it all. for (size_t i = 0; i < size; i++) { out[i] = clamp_s16(useShift ? (in[i] >> volShift) : in[i]); } }