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i386.h (SHIFT_COUNT_TRUNCATED): Expand comment. 

* config/i386/i386.h (SHIFT_COUNT_TRUNCATED): Expand comment.

From-SVN: r162206
This commit is contained in:
Uros Bizjak 2010-07-15 08:09:38 +02:00
parent 8ffadef952
commit 53f00dde26
2 changed files with 24 additions and 23 deletions
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38
gcc/ChangeLog
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@ -1,10 +1,13 @@
2010-07-15 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.h (SHIFT_COUNT_TRUNCATED): Expand comment.
2010-07-15 Magnus Granberg <zorry@gentoo.org>
Kevin F. Quinn <kevquinn@gentoo.org>
* builtins.c (expand_builtin_init_trampoline): If
-Wtrampolines make a warning.
* common.opt: Add -Wtrampolines.
* doc/invoke.texi: Add -Wtrampolines.
* builtins.c (expand_builtin_init_trampoline): Warn for -Wtrampolines.
* common.opt: Add -Wtrampolines.
* doc/invoke.texi: Add -Wtrampolines.
2010-07-15 Jie Zhang <jie@codesourcery.com>
@ -84,8 +87,7 @@
2010-07-14 Bernd Schmidt <bernds@codesourcery.com>
* ira-int.h (struct ira_object): New.
(ira_object_t): New typedef. Add DEF_VEC_P and DEF_VEC_ALLOC_P
for it.
(ira_object_t): New typedef. Add DEF_VEC_P and DEF_VEC_ALLOC_P for it.
(struct ira_allocno): Remove members min, max,
conflict_allocno_array, conflict_id, conflict_allocno_array_size,
conflict_allocnos_num and conflict_vec_p. Add new member object.
@ -114,9 +116,8 @@
(ira_allocno_conflict_iter_init, ira_allocno_conflict_iter_cond):
Changed to take into account that conflicts are now tracked for
objects.
* ira-conflicts.c (OBJECTS_CONFLICT_P): Renamed from
CONFLICT_ALLOCNO_P. Args changed to accept ira_object_t. All
uses changed.
* ira-conflicts.c (OBJECTS_CONFLICT_P): Renamed from CONFLICT_ALLOCNO_P.
Args changed to accept ira_object_t. All uses changed.
(allocnos_conflict_p): New static function.
(collected_conflict_objects): Renamed from collected_allocno_objects;
now a vector of ira_object_t. All uses changed.
@ -149,7 +150,7 @@
compress_conflict_vecs, remove_low_level_allocnos, ira_flattening,
setup_min_max_allocno_live_range_point, allocno_range_compare_func,
setup_min_max_conflict_allocno_ids, ): Likewise.
((add_to_conflicts): Renamed from add_to_allocno_conflicts, args changed
(add_to_conflicts): Renamed from add_to_allocno_conflicts, args changed
to ira_object_t; all callers changed.
(ira_add_conflict): Renamed from ira_add_allocno_conflict, args changed
to ira_object_t, all callers changed.
@ -168,8 +169,8 @@
dealing with objects.
* ira.c (ira_bad_reload_regno_1): Adjusted for dealing with objects.
* ira-int.h (struct live_range): Rename allocno member to object and change
type to ira_object_t.
* ira-int.h (struct live_range): Rename allocno member to object
and change type to ira_object_t.
(struct ira_object): New member live_ranges.
(struct ira_allocno): Remove member live_ranges.
(ALLOCNO_LIVE_RANGES): Remove.
@ -183,8 +184,8 @@
changed to ira_object_t, all callers changed.
(copy_live_range): Rename from copy_allocno_live_range, all callers
changed.
(ira_copy_live_range_list): Rename from ira_copy_allocno_live_range_list,
all callers changed.
(ira_copy_live_range_list): Rename from
ira_copy_allocno_live_range_list, all callers changed.
(ira_merge_live_ranges): Rename from ira_merge_allocno_live_range_list,
all callers changed.
(ira_live_ranges_intersect_p): Rename from
@ -408,8 +409,7 @@
(can_copy_p): Remove can_copy_init_p.
* target-globals.h (this_target_gcse): Declare.
(target_globals): Add a gcse field.
(restore_target_globals): Copy the gcse field to
this_target_gcse.
(restore_target_globals): Copy the gcse field to this_target_gcse.
* target-globals.c: Include gcse.h.
(default_target_globals): Initialize the gcse field.
(save_target_globals): Likewise.
@ -665,9 +665,9 @@
2010-07-12 Richard Sandiford <rdsandiford@googlemail.com>
* regs.h (target_regs): Add x_hard_regs_of_mode, x_contains_reg_of_mode,
x_move_cost, x_may_move_in_cost, x_may_move_out_cost and
x_last_mode_for_init_move_cost.
* regs.h (target_regs): Add x_hard_regs_of_mode,
x_contains_reg_of_mode, x_move_cost, x_may_move_in_cost,
x_may_move_out_cost and x_last_mode_for_init_move_cost.
(have_regs_of_mode, contains_reg_of_mode, move_cost)
(may_move_in_cost, may_move_out_cost): Redefine as macros.
* reginfo.c (have_regs_of_mode, contains_reg_of_mode, move_cost)

9
gcc/config/i386/i386.h
View File

@ -1815,10 +1815,11 @@ typedef struct ix86_args {
#define CLEAR_RATIO(speed) ((speed) ? MIN (6, ix86_cost->move_ratio) : 2)
/* Define if shifts truncate the shift count
which implies one can omit a sign-extension or zero-extension
of a shift count. */
/* On i386, shifts do truncate the count. But bit opcodes don't. */
/* Define if shifts truncate the shift count which implies one can
omit a sign-extension or zero-extension of a shift count.
On i386, shifts do truncate the count. But bit test instructions
take the modulo of the bit offset operand. */
/* #define SHIFT_COUNT_TRUNCATED */