Arm Neon not vectorising nested loop

Hi, I am using A9 Processor on Zynq Board running a test project with neon and simd options enabled . In my code i have nested loops which is not vectorised and below is the build log not vectorized...
question about arm cortex-a9 neon optimization(4x4 matrix mul)

======================================= for matrix 4 by 4 multiplication, neon programming is slower than natural code with auto-vectorization option. (Xilinx Zynq 702 EVM board - cortex a9 with gcc complier...
HI,why the VFP vector mode can not be used in cortex-a series processors?

HI,why the VFP vector mode can not be used in cortex-a series processors?
Elba - How do we know it works?

In part 1 of this blog , I outlined the thought process behind the Elba program. Here I'll look at the implementation decisions for the project. In ARM there are various stages of maturity of a new processor...
De-merits in using Cortex A9 for single core processor

Hi Experts, A8 is meant for single core and A9 is for multi-core based. Consider in case of SoC is build with single core of A9 and A8 how we could compare both in terms of some metrics/parameters like...