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re PR rtl-optimization/31391 (undefined label with -O -g due to cfglayout)

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PR rtl-optimization/31391
	* cfgcleanup.c (try_optimize_cfg): If a removed label is turned
	into a DELETED_LABEL note, and the label is in an empty basic
	block, update BB_END as well as BB_HEAD.

From-SVN: r123406
This commit is contained in:
Steven Bosscher 2007-04-01 18:26:00 +00:00
parent af33044f05
commit 5b52976bb8
2 changed files with 9 additions and 0 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2007-04-01 Steven Bosscher <steven@gcc.gnu.org>
PR rtl-optimization/31391
* cfgcleanup.c (try_optimize_cfg): If a removed label is turned
into a DELETED_LABEL note, and the label is in an empty basic
block, update BB_END as well as BB_HEAD.
2007-04-01 Richard Henderson <rth@redhat.com>
PR tree-optimization/31169

2
gcc/cfgcleanup.c
View File

@ -2034,6 +2034,8 @@ try_optimize_cfg (int mode)
reorder_insns_nobb (label, label, bb_note);
BB_HEAD (b) = bb_note;
if (BB_END (b) == bb_note)
BB_END (b) = label;
}
if (dump_file)
fprintf (dump_file, "Deleted label in block %i.\n",