1 files changed, 46 insertions, 0 deletions
diff --git a/arm_compute/core/NEON/NEAsymm.h b/arm_compute/core/NEON/NEAsymm.h
index 2347c468ab..4c8f797360 100644
--- a/arm_compute/core/NEON/NEAsymm.h
+++ b/arm_compute/core/NEON/NEAsymm.h
@@ -223,6 +223,52 @@ inline float32x4x4_t vdequantize(const uint8x16_t &qv, const UniformQuantization
     return vdequantized_input;
 }
 
+/** Dequantize following an asymmetric quantization scheme a neon vector holding 16 quantized values.
+ *
+ * @param[in] qv     Input values to be dequantized.
+ * @param[in] scale  Quantization scaling factor.
+ * @param[in] offset Zero quantization offset.
+ *
+ * @return Dequantized values in a neon vector
+ */
+inline float32x4x4_t vdequantize(const uint8x16_t &qv, float scale, int32_t offset)
+{
+    const int32x4_t     voffset = vdupq_n_s32(offset);
+    const float32x4_t   vscale  = vdupq_n_f32(scale);
+    const float32x4x4_t vdequantized_input =
+    {
+        {
+            vmulq_f32(vcvtq_f32_s32(vsubq_s32(vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(vmovl_u8(vget_low_u8(qv))))), voffset)), vscale),
+            vmulq_f32(vcvtq_f32_s32(vsubq_s32(vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(vmovl_u8(vget_low_u8(qv))))), voffset)), vscale),
+            vmulq_f32(vcvtq_f32_s32(vsubq_s32(vreinterpretq_s32_u32(vmovl_u16(vget_low_u16(vmovl_u8(vget_high_u8(qv))))), voffset)), vscale),
+            vmulq_f32(vcvtq_f32_s32(vsubq_s32(vreinterpretq_s32_u32(vmovl_u16(vget_high_u16(vmovl_u8(vget_high_u8(qv))))), voffset)), vscale),
+        }
+    };
+    return vdequantized_input;
+}
+
+/** Dequantize following a symmetric quantization scheme a neon vector holding 16 quantized values.
+ *
+ * @param[in] qv    Input values to be dequantized.
+ * @param[in] scale Quantization scaling factor.
+ *
+ * @return Dequantized values in a neon vector
+ */
+inline float32x4x4_t vdequantize(const int8x16_t &qv, float scale)
+{
+    const float32x4_t   vscale = vdupq_n_f32(scale);
+    const float32x4x4_t vdequantized_input =
+    {
+        {
+            vmulq_f32(vcvtq_f32_s32(vmovl_s16(vget_low_s16(vmovl_s8(vget_low_s8(qv))))), vscale),
+            vmulq_f32(vcvtq_f32_s32(vmovl_s16(vget_high_s16(vmovl_s8(vget_low_s8(qv))))), vscale),
+            vmulq_f32(vcvtq_f32_s32(vmovl_s16(vget_low_s16(vmovl_s8(vget_high_s8(qv))))), vscale),
+            vmulq_f32(vcvtq_f32_s32(vmovl_s16(vget_high_s16(vmovl_s8(vget_high_s8(qv))))), vscale),
+        }
+    };
+    return vdequantized_input;
+}
+
 /** Quantize a neon vector holding 8 floating point values.
  *
  * @param[in] qv Input values to be quantized.