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| author | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-05-01 14:45:24 +0000 |
|---|---|---|
| committer | rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-05-01 14:45:24 +0000 |
| commit | c7944dcedf702fbf1a8a802158732a46b5d72830 (patch) | |
| tree | 4e8ab9b9d983a212b8aa35ed9a63c7bffb107ef5 /gcc/rtl.h | |
| parent | e7fd8dfafd84cfd4c885a178508ade470abac0e6 (diff) | |
| download | gcc-c7944dcedf702fbf1a8a802158732a46b5d72830.tar.gz | |
gcc/
2012-03-31 Kenneth Zadeck <zadeck@naturalbridge.com>
Richard Sandiford <r.sandiford@uk.ibm.com>
* Makefile.in (lower-subreg.o, target-globals.o): Depend on
lower-subreg.h.
* lower-subreg.h: New file.
* target-globals.h (this_target_lower_subreg): Declare.
(target_globals): Add lower_subreg;
(restore_target_globals): Restore this_target_lower_subreg.
* target-globals.c: Include it.
(default_target_globals): Add default_target_lower_subreg.
(save_target_globals): Initialize target_lower_subreg.
* rtl.h (init_lower_subreg): Added declaration.
* toplev.c (backend_init_target): Call initializer for lower-subreg
pass.
* lower-subreg.c (LOG_COSTS, FORCE_LOWERING): New macros.
(default_target_lower_subreg): New variable.
(this_target_lower_subreg): Likewise.
(twice_word_mode, choices): New macros.
(shift_cost, compute_splitting_shift, compute_costs)
(init_lower_subreg): New functions.
(resolve_simple_move): Add speed_p argument. Check choices.
(find_pseudo_copy): Don't check the mode size here.
(resolve_simple_move): Assert the mode size.
(find_decomposable_shift_zext): Add speed_p argument and return
a bool. Check choices.
(resolve_shift_zext): Add comment.
(dump_shift_choices, dump_choices): New functions.
(decompose_multiword_subregs): Dump list of profitable
transformations. Add code to skip non profitable transformations.
Update calls to simple_move and find_decomposable_shift_zext.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@187015 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/rtl.h b/gcc/rtl.h index 1da1792d1a3..86c56acc197 100644 --- a/gcc/rtl.h +++ b/gcc/rtl.h @@ -2526,6 +2526,9 @@ extern void init_expmed (void); extern void expand_inc (rtx, rtx); extern void expand_dec (rtx, rtx); +/* In lower-subreg.c */ +extern void init_lower_subreg (void); + /* In gcse.c */ extern bool can_copy_p (enum machine_mode); extern bool can_assign_to_reg_without_clobbers_p (rtx); |