예제 #1
0
void test_vget_lanes16 (void)
{
  int16_t out_int16_t;
  int16x4_t arg0_int16x4_t;

  out_int16_t = vget_lane_s16 (arg0_int16x4_t, 1);
}
예제 #2
0
int32_t test_vget_lane_s16(int16x4_t v1) {
  // CHECK: test_vget_lane_s16
  return vget_lane_s16(v1, 3)+1;
  // CHECK: smov {{w[0-9]+}}, {{v[0-9]+}}.h[3]
}
예제 #3
0
void vp9_quantize_fp_neon(const tran_low_t *coeff_ptr, intptr_t count,
                          int skip_block, const int16_t *zbin_ptr,
                          const int16_t *round_ptr, const int16_t *quant_ptr,
                          const int16_t *quant_shift_ptr,
                          tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
                          const int16_t *dequant_ptr, uint16_t *eob_ptr,
                          const int16_t *scan, const int16_t *iscan) {
  // TODO(jingning) Decide the need of these arguments after the
  // quantization process is completed.
  (void)zbin_ptr;
  (void)quant_shift_ptr;
  (void)scan;

  if (!skip_block) {
    // Quantization pass: All coefficients with index >= zero_flag are
    // skippable. Note: zero_flag can be zero.
    int i;
    const int16x8_t v_zero = vdupq_n_s16(0);
    const int16x8_t v_one = vdupq_n_s16(1);
    int16x8_t v_eobmax_76543210 = vdupq_n_s16(-1);
    int16x8_t v_round = vmovq_n_s16(round_ptr[1]);
    int16x8_t v_quant = vmovq_n_s16(quant_ptr[1]);
    int16x8_t v_dequant = vmovq_n_s16(dequant_ptr[1]);
    // adjust for dc
    v_round = vsetq_lane_s16(round_ptr[0], v_round, 0);
    v_quant = vsetq_lane_s16(quant_ptr[0], v_quant, 0);
    v_dequant = vsetq_lane_s16(dequant_ptr[0], v_dequant, 0);
    // process dc and the first seven ac coeffs
    {
      const int16x8_t v_iscan = vld1q_s16(&iscan[0]);
      const int16x8_t v_coeff = load_tran_low_to_s16q(coeff_ptr);
      const int16x8_t v_coeff_sign = vshrq_n_s16(v_coeff, 15);
      const int16x8_t v_tmp = vabaq_s16(v_round, v_coeff, v_zero);
      const int32x4_t v_tmp_lo =
          vmull_s16(vget_low_s16(v_tmp), vget_low_s16(v_quant));
      const int32x4_t v_tmp_hi =
          vmull_s16(vget_high_s16(v_tmp), vget_high_s16(v_quant));
      const int16x8_t v_tmp2 =
          vcombine_s16(vshrn_n_s32(v_tmp_lo, 16), vshrn_n_s32(v_tmp_hi, 16));
      const uint16x8_t v_nz_mask = vceqq_s16(v_tmp2, v_zero);
      const int16x8_t v_iscan_plus1 = vaddq_s16(v_iscan, v_one);
      const int16x8_t v_nz_iscan = vbslq_s16(v_nz_mask, v_zero, v_iscan_plus1);
      const int16x8_t v_qcoeff_a = veorq_s16(v_tmp2, v_coeff_sign);
      const int16x8_t v_qcoeff = vsubq_s16(v_qcoeff_a, v_coeff_sign);
      const int16x8_t v_dqcoeff = vmulq_s16(v_qcoeff, v_dequant);
      v_eobmax_76543210 = vmaxq_s16(v_eobmax_76543210, v_nz_iscan);
      store_s16q_to_tran_low(qcoeff_ptr, v_qcoeff);
      store_s16q_to_tran_low(dqcoeff_ptr, v_dqcoeff);
      v_round = vmovq_n_s16(round_ptr[1]);
      v_quant = vmovq_n_s16(quant_ptr[1]);
      v_dequant = vmovq_n_s16(dequant_ptr[1]);
    }
    // now process the rest of the ac coeffs
    for (i = 8; i < count; i += 8) {
      const int16x8_t v_iscan = vld1q_s16(&iscan[i]);
      const int16x8_t v_coeff = load_tran_low_to_s16q(coeff_ptr + i);
      const int16x8_t v_coeff_sign = vshrq_n_s16(v_coeff, 15);
      const int16x8_t v_tmp = vabaq_s16(v_round, v_coeff, v_zero);
      const int32x4_t v_tmp_lo =
          vmull_s16(vget_low_s16(v_tmp), vget_low_s16(v_quant));
      const int32x4_t v_tmp_hi =
          vmull_s16(vget_high_s16(v_tmp), vget_high_s16(v_quant));
      const int16x8_t v_tmp2 =
          vcombine_s16(vshrn_n_s32(v_tmp_lo, 16), vshrn_n_s32(v_tmp_hi, 16));
      const uint16x8_t v_nz_mask = vceqq_s16(v_tmp2, v_zero);
      const int16x8_t v_iscan_plus1 = vaddq_s16(v_iscan, v_one);
      const int16x8_t v_nz_iscan = vbslq_s16(v_nz_mask, v_zero, v_iscan_plus1);
      const int16x8_t v_qcoeff_a = veorq_s16(v_tmp2, v_coeff_sign);
      const int16x8_t v_qcoeff = vsubq_s16(v_qcoeff_a, v_coeff_sign);
      const int16x8_t v_dqcoeff = vmulq_s16(v_qcoeff, v_dequant);
      v_eobmax_76543210 = vmaxq_s16(v_eobmax_76543210, v_nz_iscan);
      store_s16q_to_tran_low(qcoeff_ptr + i, v_qcoeff);
      store_s16q_to_tran_low(dqcoeff_ptr + i, v_dqcoeff);
    }
    {
      const int16x4_t v_eobmax_3210 = vmax_s16(
          vget_low_s16(v_eobmax_76543210), vget_high_s16(v_eobmax_76543210));
      const int64x1_t v_eobmax_xx32 =
          vshr_n_s64(vreinterpret_s64_s16(v_eobmax_3210), 32);
      const int16x4_t v_eobmax_tmp =
          vmax_s16(v_eobmax_3210, vreinterpret_s16_s64(v_eobmax_xx32));
      const int64x1_t v_eobmax_xxx3 =
          vshr_n_s64(vreinterpret_s64_s16(v_eobmax_tmp), 16);
      const int16x4_t v_eobmax_final =
          vmax_s16(v_eobmax_tmp, vreinterpret_s16_s64(v_eobmax_xxx3));

      *eob_ptr = (uint16_t)vget_lane_s16(v_eobmax_final, 0);
    }
  } else {
    memset(qcoeff_ptr, 0, count * sizeof(*qcoeff_ptr));
    memset(dqcoeff_ptr, 0, count * sizeof(*dqcoeff_ptr));
    *eob_ptr = 0;
  }
}
예제 #4
0
int16_t test_vget_lane_s16(int16x4_t a) {
  // CHECK-LABEL: test_vget_lane_s16:
  // CHECK-NEXT:  umov.h w0, v0[3]
  // CHECK-NEXT:  ret
  return vget_lane_s16(a, 3);
}
예제 #5
0
// CHECK-LABEL: define i16 @test_vget_lane_s16(<4 x i16> %a) #0 {
// CHECK:   [[TMP0:%.*]] = bitcast <4 x i16> %a to <8 x i8>
// CHECK:   [[TMP1:%.*]] = bitcast <8 x i8> [[TMP0]] to <4 x i16>
// CHECK:   [[VGET_LANE:%.*]] = extractelement <4 x i16> [[TMP1]], i32 3
// CHECK:   ret i16 [[VGET_LANE]]
int16_t test_vget_lane_s16(int16x4_t a) {
  return vget_lane_s16(a, 3);
}