[PATCH, i386]: AMD bdver3 enablement

["Gopalasubramanian, Ganesh" <Ganesh dot Gopalasubramanian at amd dot com>]

Hi 

The attached patch (Patch.txt) enables the next version of AMD's bulldozer core.
A new file (bdver3.md) is also attached which describes the pipelines.

Presently, the tuning is copied mostly from its predecessor. 
However, the pipelines are modeled for the new core.

"Make -k check" passes.

Is it OK for upstream?

Regards
Ganesh

2012-10-11  Ganesh Gopalasubramanian  <Ganesh.Gopalasubramanian@amd.com>

	bdver3 Enablement
	* gcc/doc/extend.texi: Add details about bdver3.
	* gcc/doc/invoke.texi: Add details about bdver3.
	* config.gcc (i[34567]86-*-linux* | ...): Add bdver3.
	(case ${target}): Add bdver3.
	* config/i386/i386.h (TARGET_BDVER3): New definition.
	* config/i386/i386.md (define_attr "cpu"): Add bdver3.
	* config/i386/cpuid.h (bit_XSAVEOPT): New field for 
	getting the xsaveopt cpuid flag.
	* config/i386/sse.md (sseshuf): New instruction 
	attribute added for identifying the shuffle instructions.
	* config/i386/i386.opt (flag_dispatch_scheduler): Add bdver3.
	* config/i386/i386-c.c (ix86_target_macros_internal): Add
	bdver3 def_and_undef
	* config/i386/driver-i386.c (host_detect_local_cpu): Let
	-march=native recognize bdver3 processors.	
	* config/i386/i386.c (struct processor_costs btver2_cost): New
	bdver3 cost table.
	(m_BDVER3): New definition.
	(m_AMD_MULTIPLE): Includes m_BDVER3.
	(initial_ix86_tune_features): Add bdver3 tune.
	(processor_target_table): Add bdver3 entry.
	(static const char *const cpu_names): Add bdver3 entry.
	(software_prefetching_beneficial_p): Add bdver3.
	(ix86_option_override_internal): Add bdver3 instruction sets.
	(ix86_issue_rate): Add bdver3.
	(ix86_adjust_cost): Add bdver3.
	(enum target_cpu_default): Add TARGET_CPU_DEFAULT_bdver3.
	(enum processor_type): Add PROCESSOR_BDVER3.
	* config/i386/bdver3.md: New file describing bdver3 pipelines.

Attachment: bdver3.md
Description: bdver3.md

Attachment: Patch.txt
Description: Patch.txt