[Patch][AArch64] Split a move of Q-reg vectors contained in general regs.

[Tejas Belagod]

Hi,

This patch fixes the mov pattern to split a move between general regs that
contain a Q-reg vector value.

Regression-tested on aarch64-none-elf. OK for aarch64-branch?

Thanks,
Tejas Belagod
ARM.

Changelog:

2012-09-10  Tejas Belagod  <tejas.belagod@arm.com>

gcc/
	* config/aarch64/aarch64-simd.md (*aarch64_simd_mov<mode>): Split Q-reg
	vector value move contained in general registers.
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