[Patch, AArch64] Implement support for LD1R.

[Tejas Belagod]

Hi,

Attached is a patch that implements support for AdvSIMD instruction LD1R.

Tested on aarch64-none-elf. OK for trunk?

Thanks,
Tejas Belagod
ARM.

2013-01-09  Tejas Belagod  <tejas.belagod@arm.com>

gcc/
	* config/aarch64/aarch64-simd.md (*aarch64_simd_ld1r<mode>): New.
	* config/aarch64/iterators.md (VALLDI): New.

testsuite/
	* gcc.target/aarch64/aarch64/vect-ld1r-compile-fp.c: New.
	* gcc.target/aarch64/vect-ld1r-compile.c: New.
	* gcc.target/aarch64/vect-ld1r-fp.c: New.
	* gcc.target/aarch64/vect-ld1r.c: New.
	* gcc.target/aarch64/vect-ld1r.x: New.
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