From c7944dcedf702fbf1a8a802158732a46b5d72830 Mon Sep 17 00:00:00 2001 From: rsandifo Date: Tue, 1 May 2012 14:45:24 +0000 Subject: gcc/ 2012-03-31 Kenneth Zadeck Richard Sandiford * 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 --- gcc/target-globals.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'gcc/target-globals.c') diff --git a/gcc/target-globals.c b/gcc/target-globals.c index 7a4058ebd18..e679f21614e 100644 --- a/gcc/target-globals.c +++ b/gcc/target-globals.c @@ -40,6 +40,7 @@ along with GCC; see the file COPYING3. If not see #include "builtins.h" #include "gcse.h" #include "bb-reorder.h" +#include "lower-subreg.h" #if SWITCHABLE_TARGET struct target_globals default_target_globals = { @@ -56,7 +57,8 @@ struct target_globals default_target_globals = { &default_target_ira_int, &default_target_builtins, &default_target_gcse, - &default_target_bb_reorder + &default_target_bb_reorder, + &default_target_lower_subreg }; struct target_globals * @@ -79,6 +81,7 @@ save_target_globals (void) g->builtins = XCNEW (struct target_builtins); g->gcse = XCNEW (struct target_gcse); g->bb_reorder = XCNEW (struct target_bb_reorder); + g->lower_subreg = XCNEW (struct target_lower_subreg); restore_target_globals (g); init_reg_sets (); target_reinit (); -- cgit v1.2.1