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| author | Kenneth Zadeck <zadeck@naturalbridge.com> | 2012-05-01 14:45:24 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2012-05-01 14:45:24 +0000 |
| commit | af4ba42308c17cd9e35db46bfbc2036fc45a12b2 (patch) | |
| tree | 4e8ab9b9d983a212b8aa35ed9a63c7bffb107ef5 /gcc/toplev.c | |
| parent | 90911ab64f49da361102ebc7c9996765beb507ce (diff) | |
| download | gcc-af4ba42308c17cd9e35db46bfbc2036fc45a12b2.zip gcc-af4ba42308c17cd9e35db46bfbc2036fc45a12b2.tar.gz gcc-af4ba42308c17cd9e35db46bfbc2036fc45a12b2.tar.bz2 | |
Makefile.in (lower-subreg.o, [...]): Depend on lower-subreg.h.
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.
Co-Authored-By: Richard Sandiford <r.sandiford@uk.ibm.com>
From-SVN: r187015
Diffstat (limited to 'gcc/toplev.c')
| -rw-r--r-- | gcc/toplev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/toplev.c b/gcc/toplev.c index 7d7be83..d9aaa42 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -1601,6 +1601,7 @@ backend_init_target (void) /* rtx_cost is mode-dependent, so cached values need to be recomputed on a mode change. */ init_expmed (); + init_lower_subreg (); /* We may need to recompute regno_save_code[] and regno_restore_code[] after a mode change as well. */ |