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authorJ"orn Rennecke <joern.rennecke@superh.com>2002-02-21 22:48:02 +0000
committerJoern Rennecke <amylaar@gcc.gnu.org>2002-02-21 22:48:02 +0000
commit31fbaad438263059a24223c68b6c1fc4463dedb5 (patch)
treeaeb13ff0e51fcf89380c39b865b47b6865c51a9a /gcc
parenta7f52356c562251c039d47b355b14a48b54bc532 (diff)
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jump.c (redirect_jump): If old label has no UID, don't try to delete it.
* jump.c (redirect_jump): If old label has no UID, don't try to delete it. From-SVN: r49943
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/jump.c4
2 files changed, 8 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ebdb60a..647eb31 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Thu Feb 21 22:43:44 2002 J"orn Rennecke <joern.rennecke@superh.com>
+
+ * jump.c (redirect_jump): If old label has no UID, don't try to
+ delete it.
+
Thu Feb 21 21:17:21 2002 J"orn Rennecke <joern.rennecke@superh.com>
* sh.md (insv): Provide byte offsets for gen_rtx_SUBREG.
diff --git a/gcc/jump.c b/gcc/jump.c
index fc6bef0..7d01a55 100644
--- a/gcc/jump.c
+++ b/gcc/jump.c
@@ -2091,7 +2091,9 @@ redirect_jump (jump, nlabel, delete_unused)
&& NOTE_LINE_NUMBER (NEXT_INSN (olabel)) == NOTE_INSN_FUNCTION_END)
emit_note_after (NOTE_INSN_FUNCTION_END, nlabel);
- if (olabel && --LABEL_NUSES (olabel) == 0 && delete_unused)
+ if (olabel && --LABEL_NUSES (olabel) == 0 && delete_unused
+ /* Undefined labels will remain outside the insn stream. */
+ && INSN_UID (olabel))
delete_related_insns (olabel);
return 1;