/* CPU mode switching
- Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
- Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
+ 2009 Free Software Foundation, Inc.
This file is part of GCC.
#include "system.h"
#include "coretypes.h"
#include "tm.h"
+#include "target.h"
#include "rtl.h"
#include "regs.h"
#include "hard-reg-set.h"
#include "flags.h"
-#include "real.h"
#include "insn-config.h"
#include "recog.h"
#include "basic-block.h"
if (INSN_P (return_copy))
{
+ /* When using SJLJ exceptions, the call to the
+ unregister function is inserted between the
+ clobber of the return value and the copy.
+ We do not want to split the block before this
+ or any other call; if we have not found the
+ copy yet, the copy must have been deleted. */
+ if (CALL_P (return_copy))
+ {
+ short_block = 1;
+ break;
+ }
return_copy_pat = PATTERN (return_copy);
switch (GET_CODE (return_copy_pat))
{
case USE:
/* Skip __builtin_apply pattern. */
if (GET_CODE (XEXP (return_copy_pat, 0)) == REG
- && (FUNCTION_VALUE_REGNO_P
+ && (targetm.calls.function_value_regno_p
(REGNO (XEXP (return_copy_pat, 0)))))
{
maybe_builtin_apply = 1;
&& copy_start + copy_num <= ret_end)
nregs -= copy_num;
else if (!maybe_builtin_apply
- || !FUNCTION_VALUE_REGNO_P (copy_start))
+ || !targetm.calls.function_value_regno_p
+ (copy_start))
break;
last_insn = return_copy;
}
last_insn = return_copy;
}
while (nregs);
-
+
/* If we didn't see a full return value copy, verify that there
is a plausible reason for this. If some, but not all of the
return register is likely spilled, we can expect that there
failures, so let it pass. */
|| (GET_MODE_CLASS (GET_MODE (ret_reg)) != MODE_INT
&& nregs != 1));
-
+
if (INSN_P (last_insn))
{
before_return_copy
for (i = 0; i < max_num_modes; i++)
{
int current_mode[N_ENTITIES];
- sbitmap *delete;
+ sbitmap *del;
sbitmap *insert;
/* Set the anticipatable and computing arrays. */
FOR_EACH_BB (bb)
sbitmap_not (kill[bb->index], transp[bb->index]);
edge_list = pre_edge_lcm (n_entities, transp, comp, antic,
- kill, &insert, &delete);
+ kill, &insert, &del);
for (j = n_entities - 1; j >= 0; j--)
{
}
FOR_EACH_BB_REVERSE (bb)
- if (TEST_BIT (delete[bb->index], j))
+ if (TEST_BIT (del[bb->index], j))
{
make_preds_opaque (bb, j);
/* Cancel the 'deleted' mode set. */
}
}
- sbitmap_vector_free (delete);
+ sbitmap_vector_free (del);
sbitmap_vector_free (insert);
clear_aux_for_edges ();
free_edge_list (edge_list);
}
-struct tree_opt_pass pass_mode_switching =
+struct rtl_opt_pass pass_mode_switching =
{
- "mode-sw", /* name */
+ {
+ RTL_PASS,
+ "mode_sw", /* name */
gate_mode_switching, /* gate */
rest_of_handle_mode_switching, /* execute */
NULL, /* sub */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
- TODO_df_finish |
- TODO_dump_func, /* todo_flags_finish */
- 0 /* letter */
+ TODO_df_finish | TODO_verify_rtl_sharing |
+ TODO_dump_func /* todo_flags_finish */
+ }
};