Fixed the compiler warning -Werror=type-limits

* Comparison is always false due to limited range of data type.
  rescale_value is truncated to int32_t and then is compared agains (1ll <<31) which will be always false

* Resolves MLCE-508

Change-Id: I252f64d4aec8f3e120d71fc5e40c7665816173ac
Signed-off-by: Pablo Marquez Tello <pablo.tello@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/6342
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Giorgio Arena <giorgio.arena@arm.com>
Reviewed-by: Gunes Bayir <gunes.bayir@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/core/NEON/kernels/arm_conv/pooling/kernels/a64_u8_nhwc_avg_generic_depthfirst/generic.cpp b/src/core/NEON/kernels/arm_conv/pooling/kernels/a64_u8_nhwc_avg_generic_depthfirst/generic.cpp
index 2c8a29248d..baf23b4a4d 100644
--- a/src/core/NEON/kernels/arm_conv/pooling/kernels/a64_u8_nhwc_avg_generic_depthfirst/generic.cpp
+++ b/src/core/NEON/kernels/arm_conv/pooling/kernels/a64_u8_nhwc_avg_generic_depthfirst/generic.cpp
@@ -84,12 +84,13 @@ void a64_u8_nhwc_avg_generic_depthfirst_impl(
       f_rescale_value *= 2.0f;
     }
 
-    rescale_value = static_cast<int32_t>(round(f_rescale_value * static_cast<float>(1ll << 31)));
-    if (static_cast<int64_t>(rescale_value) == (1ll << 31))
+    int64_t large_rescale_value = round(f_rescale_value * static_cast<float>(1ll << 31));
+    if (large_rescale_value == (1ll << 31))
     {
       shift_value++;
-      rescale_value >>= 1;
+      large_rescale_value >>= 1;
     }
+    rescale_value = static_cast<int32_t>(large_rescale_value);
   }
 
   __asm__ __volatile__(