Hi,

This patch splits the "shift_imm" type attribute used by AArch64 in
two - giving rotate_imm and shift_imm.

We then apply this transform across the AArch64 pipeline descriptions
which have modelling for shift_imm (cortex-a53, cortex-a57, thunderx).
This should give no functional change to these models.

Bootstrapped and tested on aarch64-none-linux-gnu, and
arm-none-linux-gnueabihf with no issues.

OK?

Thanks,
James

---
2015-09-25  James Greenhalgh  <james.greenhalgh@arm.com>

	* config/arm/types.md (type): Add rotate_imm.
	* config/aarch64/aarch64.md (*ror<mode>3_insn): Split out the
	ROR immediate case.
	(*rorsi3_insn_uxtw): Likewise.
	* config/aarch64/thunderx.md (thunderx_shift): Add rotate_imm.
	* config/arm/cortex-a53.md (cortex_a53_alu_shift): Add rotate_imm.
	* config/arm/cortex-a57.md (cortex_a53_alu): Add rotate_imm.