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re PR middle-end/49801 (df_live_verify_transfer_functions fails with to use of CC_REGNUM and checking enabled in rx backend)

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PR middle-end/49801
	* compare-elim.c (find_comparisons_in_bb): Use df_get_live_in and
	df_get_live_out instead of accessing the bitmaps directly.
	(execute_compare_elim_after_reload): Remove calls to df_set_flags,
	df_live_add_problem and df_analyze.

From-SVN: r179749
This commit is contained in:
Nick Clifton 2011-10-10 13:31:03 +00:00 committed by Nick Clifton
parent 88fe4be8e1
commit 53fbb7241f
2 changed files with 10 additions and 6 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2011-10-10 Nick Clifton <nickc@redhat.com>
PR middle-end/49801
* compare-elim.c (find_comparisons_in_bb): Use df_get_live_in and
df_get_live_out instead of accessing the bitmaps directly.
(execute_compare_elim_after_reload): Remove calls to df_set_flags,
df_live_add_problem and df_analyze.
2011-10-10 Michael Matz <matz@suse.de>
PR middle-end/50638

8
gcc/compare-elim.c
View File

@ -356,7 +356,7 @@ find_comparisons_in_bb (struct dom_walk_data *data ATTRIBUTE_UNUSED,
/* Look to see if the flags register is live outgoing here, and
incoming to any successor not part of the extended basic block. */
if (bitmap_bit_p (&DF_LIVE_BB_INFO (bb)->out, targetm.flags_regnum))
if (bitmap_bit_p (df_get_live_out (bb), targetm.flags_regnum))
{
edge e;
edge_iterator ei;
@ -364,7 +364,7 @@ find_comparisons_in_bb (struct dom_walk_data *data ATTRIBUTE_UNUSED,
FOR_EACH_EDGE (e, ei, bb->succs)
{
basic_block dest = e->dest;
if (bitmap_bit_p (&DF_LIVE_BB_INFO (dest)->in,
if (bitmap_bit_p (df_get_live_in (bb),
targetm.flags_regnum)
&& !single_pred_p (dest))
{
@ -580,8 +580,6 @@ try_eliminate_compare (struct comparison *cmp)
static unsigned int
execute_compare_elim_after_reload (void)
{
df_set_flags (DF_DEFER_INSN_RESCAN);
df_live_add_problem ();
df_analyze ();
gcc_checking_assert (all_compares == NULL);
@ -602,8 +600,6 @@ execute_compare_elim_after_reload (void)
VEC_free (comparison_struct_p, heap, all_compares);
all_compares = NULL;
df_analyze ();
}
return 0;