COMPMID-412: Port PoolingLayer to use fixed point 16.

Change-Id: I2005de4c7c14526996309826d33a0ec8e732d2d5
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/78720
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Steven Niu <steven.niu@arm.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/arm_compute/core/FixedPoint.inl b/arm_compute/core/FixedPoint.inl
index b921b32ed9..5ea0f6c825 100644
--- a/arm_compute/core/FixedPoint.inl
+++ b/arm_compute/core/FixedPoint.inl
@@ -21,6 +21,8 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
+#include "arm_compute/core/Error.h"
+
 #include <cmath>
 #include <limits>
 
@@ -59,6 +61,20 @@ inline qint16_t sqshl_qs16(qint16_t a, int shift)
     return saturate_convert<qint32_t, qint16_t>(tmp);
 }
 
+inline qint8_t sshr_qs8(qint8_t a, int shift)
+{
+    ARM_COMPUTE_ERROR_ON_MSG(shift == 0, "Shift should not be zero");
+    const qint8_t round_val = 1 << (shift - 1);
+    return sqadd_qs8(a, round_val) >> shift;
+}
+
+inline qint16_t sshr_qs16(qint16_t a, int shift)
+{
+    ARM_COMPUTE_ERROR_ON_MSG(shift == 0, "Shift should not be zero");
+    const qint16_t round_val = 1 << (shift - 1);
+    return sqadd_qs16(a, round_val) >> shift;
+}
+
 inline qint8_t sabs_qs8(qint8_t a)
 {
     return (a < 0) ? (a == std::numeric_limits<int8_t>::min()) ? std::numeric_limits<int8_t>::max() : -a : a;