[PATCH] [ARM] Post-indexed addressing for NEON memory access

[Charles Baylis]

This patch adds support for post-indexed addressing for NEON structure
memory accesses.

For example VLD1.8 {d0}, [r0], r1


Bootstrapped and checked on arm-unknown-gnueabihf using Qemu.

Ok for trunk?


gcc/Changelog:

2014-06-02  Charles Baylis  <charles.baylis@linaro.org>

        * config/arm/arm.c (neon_vector_mem_operand): Allow register
        POST_MODIFY for neon loads and stores.
        (arm_print_operand): Output post-index register for neon loads and
        stores.
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