[PATCH] [ARM] Implement eabi_attribute, cpu, and fpu directives.

[Silviu Baranga]

  Hi Logan, Rich,

  If I'm reading the Cortex-R5 manual correctly, it should support both the arm and thumb hw division instructions
  from r1p0 onwards (see http://infocenter.arm.com/help/topic/com.arm.doc.ddi0460d/DDI0460D_cortex_r5_r1p2_trm.pdf).

  Therefore, I think R5 should still have the hw division extension (both for arm and thumb).

  Thanks,
  Silviu

http://llvm-reviews.chandlerc.com/D1987