[AArch64] Support scalar form of FABD

[Vidya Praveen]

Hello,

This attached patch adds support to the scalar form of FABD
instruction along with the compile & execute tests for the same.

Regression tested on aarch64-none-elf with no issues.

OK?

Regards
VP

---

gcc/ChangeLog

2013-05-02  Vidya Praveen  <vidyapraveen@arm.com>

         * config/aarch64/aarch64-simd.md (*fabd_scalar<mode>3): Support
           scalar form of FABD instruction.

gcc/testsuite/ChangeLog

2013-05-02  Vidya Praveen <vidyapraveen@arm.com>

         * gcc.target/aarch64/fabd.c: New file.
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