[4.7, 4.8] Extended Silvermont tuning.

Backport r199546 from trunk:

	2013-05-31  Yuri Rumyantsev  <yuri.s.rumyantsev@intel.com>
	    Igor Zamyatin  <igor.zamyatin@intel.com>

	Silvermont (SLM) architecture performance tuning.
	* config/i386/i386.h (enum ix86_tune_indices): Add
	X86_TUNE_SPLIT_MEM_OPND_FOR_FP_CONVERTS.
	(TARGET_SPLIT_MEM_OPND_FOR_FP_CONVERTS): New define.

	* config/i386/i386.c (initial_ix86_tune_features)
	<X86_TUNE_SPLIT_MEM_OPND_FOR_FP_CONVERTS>: Initialize.
	(ix86_lea_outperforms): Handle Silvermont tuning.
	(ix86_avoid_lea_for_add): Add new argument to
	ix86_lea_outperforms call.
	(ix86_use_lea_for_mov): Likewise.
	(ix86_avoid_lea_for_addr): Likewise.
	(ix86_lea_for_add_ok): Likewise.
	(exact_dependency_1): New function.
	(exact_store_load_dependency): Likewise.
	(ix86_adjust_cost): Handle Silvermont tuning.
	(do_reoder_for_imul): Likewise.
	(swap_top_of_ready_list): New function.
	(ix86_sched_reorder): Changed to handle Silvermont tuning.

	* config/i386/i386.md (peepholes that split memory operand in fp
	converts): New.

Also backport r199611 with fixes for the patch above and previous SLM patch:

	2013-06-03 Yuri Rumyantsev <yuri.s.rumyantsev@intel.com>

	* config/i386/i386.c (ix86_lea_outperforms): Fix formatting.
	(ix86_avoid_lea_for_addr): Likewise.
	(exact_dependency_1): Likewise.
	(ix86_adjust_cost): Likewise.
	(swap_top_of_ready_list): Fix formatting and !reload_completed
	check removed.
	(do_reorder_for_imul): Fix typo, formatting and
	!reload_completed check removed.
	(ix86_sched_reorder): Fix typo and formatting.
	(fold_builtin_cpu): Move M_INTEL_SLM at the end of processor
	types list.

	* config/i386/cpuinfo.c (INTEL_SLM): New enum value.

Note that [4.7] part of the patch doesn't contain some of optimizations
(IMUL) due to missed dependencies. [4.8] part of this backport is
complete.

Change-Id: I4b5f92b025aab217046f5b393527636f3cf25669
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>

0 files changed, 0 insertions, 0 deletions