This is another refactoring patch to clean up more of the ldp/stp handling
code and avoid duplicating quite as much code.

Much like the other refactoring patch, this reduces the use of reg_1, reg_2,
etc. leading to a cleaner implementation.

Bootstrapped on AArch64 with no issues.

OK?

Thanks,
James

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2016-05-17  James Greenhalgh  <james.greenhalgh@arm.com>

	* config/aarch64/aarch64.c (aarch64_gen_adjusted_ldpstp): Refactor.