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[PATCH, AArch64] Support ROR in backend

From: "Ian Bolton" <ian dot bolton at arm dot com>
To: <gcc-patches at gcc dot gnu dot org>
Date: Thu, 14 Mar 2013 15:42:32 -0000
Subject: [PATCH, AArch64] Support ROR in backend

We couldn't generate ROR (preferred alias of EXTR when both source
registers are the same) for AArch64, when rotating by an immediate,
... until now!

This patch includes the pattern and a test.

Full regression testing for Linux and bare-metal passed.

OK for trunk stage-1?

Thanks,
Ian


2013-03-14  Ian Bolton  <ian.bolton@arm.com>

gcc/
	* config/aarch64/aarch64.md (*ror<mode>3_insn): New pattern.
	(*rorsi3_insn_uxtw): Likewise.

testsuite/
	* gcc.target/aarch64/ror.c: New test.

Attachment: aarch64-ror.txt
Description: Text document

Follow-Ups:
- Re: [PATCH, AArch64] Support ROR in backend
  - From: Marcus Shawcroft

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