You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
#include "config.h"
#include "system.h"
#include "toplev.h"
#include "except.h"
#include "tree.h"
+#include "timevar.h"
+#include "tree-pass.h"
static int reload_cse_noop_set_p (rtx);
static void reload_cse_simplify (rtx, rtx);
op_alt_regno[i][j] = regno;
}
j++;
+ class = (int) NO_REGS;
break;
}
p += CONSTRAINT_LEN (c, p);
int this_nregs = alternative_nregs[alternative_order[j]];
if (this_reject < best_reject
- || (this_reject == best_reject && this_nregs < best_nregs))
+ || (this_reject == best_reject && this_nregs > best_nregs))
{
best = j;
best_reject = this_reject;
HARD_REG_SET live;
REG_SET_TO_HARD_REG_SET (live,
- bb->global_live_at_start);
+ bb->il.rtl->global_live_at_start);
compute_use_by_pseudos (&live,
- bb->global_live_at_start);
+ bb->il.rtl->global_live_at_start);
COPY_HARD_REG_SET (LABEL_LIVE (insn), live);
IOR_HARD_REG_SET (ever_live_at_start, live);
}
rtx tem = gen_rtx_PLUS (GET_MODE (reg), reg, new_src);
validate_change (insn, &SET_SRC (pat), tem, 0);
}
- else
+ else if (GET_MODE (reg) != BImode)
{
enum machine_mode narrow_mode;
for (narrow_mode = GET_CLASS_NARROWEST_MODE (MODE_INT);
reg_set_luid[i] = 0;
}
}
+\f
+static bool
+gate_handle_postreload (void)
+{
+ return (optimize > 0);
+}
+
+
+static void
+rest_of_handle_postreload (void)
+{
+ /* Do a very simple CSE pass over just the hard registers. */
+ reload_cse_regs (get_insns ());
+ /* reload_cse_regs can eliminate potentially-trapping MEMs.
+ Remove any EH edges associated with them. */
+ if (flag_non_call_exceptions)
+ purge_all_dead_edges ();
+}
+
+struct tree_opt_pass pass_postreload_cse =
+{
+ "postreload", /* name */
+ gate_handle_postreload, /* gate */
+ rest_of_handle_postreload, /* execute */
+ NULL, /* sub */
+ NULL, /* next */
+ 0, /* static_pass_number */
+ TV_RELOAD_CSE_REGS, /* tv_id */
+ 0, /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ TODO_dump_func, /* todo_flags_finish */
+ 'o' /* letter */
+};
+