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common.opt (fira-coalesce): Remove.

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2010-10-04  Vladimir Makarov  <vmakarov@redhat.com>

	* common.opt (fira-coalesce): Remove.

	* doc/invoke.texi (flag_ira_coalesce): Remove.

	* ira-color.c (allocno_coalesced_p): Move before
	copy_freq_compare_func.
	processed_coalesced_allocno_bitmap): Ditto.
	(update_conflict_hard_regno_costs): Don't use
	ALLOCNO_FIRST_COALESCED_ALLOCNO.
	(allocno_cost_compare_func, print_coalesced_allocno): Remove.
	(assign_hard_reg): Assume no coalesced allocnos.
	(get_coalesced_allocnos_attributes): Remove.
	(bucket_allocno_compare_func): Assume no coalesced allocnos.
	(push_allocno_to_stack): Ditto.
	(remove_allocno_from_bucket_and_push): Use
	ira_print_expanded_allocno instead of print_coalesced_allocno.
	(push_allocnos_to_stack): Assume uncoalesced allocnos.
	(all_conflicting_hard_regs_coalesced): Ditto.  Rename to
	all_conflicting_hard_regs.
	(setup_allocno_available_regs_num): Assume uncoalesced allocnos.
	(setup_allocno_left_conflicts_size): Ditto.
	(put_allocno_into_bucket): Ditto.
	(copy_freq_compare_func): Remove.
	(copy_freq_compare_func, merge_allocnos): Move before
	coalesced_pseudo_reg_freq_compare.
	coalesced_allocno_conflict_p): Ditto.
	(coalesced_allocno_conflict_p, coalesce_allocnos): Ditto.  Remove
	parameter.  Assume it true.
	(color_allocnos): Assume uncoalesced allocnos.  Use
	ira_print_expanded_allocno instead of print_coalesced_allocno.
	(ira_sort_regnos_for_alter_reg): Call coalesce_allocnos without
	parameter.

	* ira.c: Remove comment about coalescing.

From-SVN: r164959
This commit is contained in:
Vladimir Makarov 2010-10-04 20:37:57 +00:00 committed by Vladimir Makarov
parent f770d743df
commit 22b0982c17
5 changed files with 460 additions and 649 deletions
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37
gcc/ChangeLog
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@ -1,3 +1,40 @@
2010-10-04 Vladimir Makarov <vmakarov@redhat.com>
* common.opt (fira-coalesce): Remove.
* doc/invoke.texi (flag_ira_coalesce): Remove.
* ira-color.c (allocno_coalesced_p): Move before
copy_freq_compare_func.
processed_coalesced_allocno_bitmap): Ditto.
(update_conflict_hard_regno_costs): Don't use
ALLOCNO_FIRST_COALESCED_ALLOCNO.
(allocno_cost_compare_func, print_coalesced_allocno): Remove.
(assign_hard_reg): Assume no coalesced allocnos.
(get_coalesced_allocnos_attributes): Remove.
(bucket_allocno_compare_func): Assume no coalesced allocnos.
(push_allocno_to_stack): Ditto.
(remove_allocno_from_bucket_and_push): Use
ira_print_expanded_allocno instead of print_coalesced_allocno.
(push_allocnos_to_stack): Assume uncoalesced allocnos.
(all_conflicting_hard_regs_coalesced): Ditto. Rename to
all_conflicting_hard_regs.
(setup_allocno_available_regs_num): Assume uncoalesced allocnos.
(setup_allocno_left_conflicts_size): Ditto.
(put_allocno_into_bucket): Ditto.
(copy_freq_compare_func): Remove.
(copy_freq_compare_func, merge_allocnos): Move before
coalesced_pseudo_reg_freq_compare.
coalesced_allocno_conflict_p): Ditto.
(coalesced_allocno_conflict_p, coalesce_allocnos): Ditto. Remove
parameter. Assume it true.
(color_allocnos): Assume uncoalesced allocnos. Use
ira_print_expanded_allocno instead of print_coalesced_allocno.
(ira_sort_regnos_for_alter_reg): Call coalesce_allocnos without
parameter.
* ira.c: Remove comment about coalescing.
2010-10-04 Joseph Myers <joseph@codesourcery.com>
* config/mips/mips.h (target_flags_explicit): Declare for

4
gcc/common.opt
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@ -1004,10 +1004,6 @@ fira-region=
Common Joined RejectNegative
-fira-region=[one|all|mixed] Set regions for IRA
fira-coalesce
Common Report Var(flag_ira_coalesce) Init(0)
Do optimistic coalescing.
fira-loop-pressure
Common Report Var(flag_ira_loop_pressure)
Use IRA based register pressure calculation

7
gcc/doc/invoke.texi
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@ -349,7 +349,7 @@ Objective-C and Objective-C++ Dialects}.
-finline-small-functions -fipa-cp -fipa-cp-clone -fipa-matrix-reorg @gol
-fipa-pta -fipa-profile -fipa-pure-const -fipa-reference @gol
-fipa-struct-reorg -fira-algorithm=@var{algorithm} @gol
-fira-region=@var{region} -fira-coalesce @gol
-fira-region=@var{region} @gol
-fira-loop-pressure -fno-ira-share-save-slots @gol
-fno-ira-share-spill-slots -fira-verbose=@var{n} @gol
-fivopts -fkeep-inline-functions -fkeep-static-consts @gol
@ -6416,11 +6416,6 @@ irregular register set, the third one results in faster and generates
decent code and the smallest size code, and the default value usually
give the best results in most cases and for most architectures.
@item -fira-coalesce
@opindex fira-coalesce
Do optimistic register coalescing. This option might be profitable for
architectures with big regular register files.
@item -fira-loop-pressure
@opindex fira-loop-pressure
Use IRA to evaluate register pressure in loops for decision to move

1059
gcc/ira-color.c
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File diff suppressed because it is too large Load Diff

2
gcc/ira.c
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@ -168,8 +168,6 @@ along with GCC; see the file COPYING3. If not see
process. It is done in each region on top-down traverse of the
region tree (file ira-color.c). There are following subpasses:
* Optional aggressive coalescing of allocnos in the region.
* Putting allocnos onto the coloring stack. IRA uses Briggs
optimistic coloring which is a major improvement over
Chaitin's coloring. Therefore IRA does not spill allocnos at