From: Richard Henderson <rth@redhat.com>
Date: Sun, 22 Jul 2001 22:49:00 +0000 (-0700)
Subject: flow.c (split_block): Make sure bb_note is included in the new block when splitting... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0b6301aebeb907d1ebaee5b075c05595db9fa08f;p=gcc.git

flow.c (split_block): Make sure bb_note is included in the new block when splitting before a label.

        * flow.c (split_block): Make sure bb_note is included in the
        new block when splitting before a label.

From-SVN: r44250
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 98980849931..0b69aa3f8b4 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2001-07-22  Richard Henderson  <rth@redhat.com>
+
+	* flow.c (split_block): Make sure bb_note is included in the
+	new block when splitting before a label.
+
 Sun Jul 22 23:28:56 CEST 2001  Jan Hubicka  <jh@suse.cz>
 
 	* basic-block.h (redirect_edge_and_branch_force,
diff --git a/gcc/flow.c b/gcc/flow.c
index a6a63e5a3ae..370b92bcbb9 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -1561,6 +1561,11 @@ split_block (bb, insn)
       bb_note = emit_note_after (NOTE_INSN_BASIC_BLOCK,
 				 new_bb->head);
       NOTE_BASIC_BLOCK (bb_note) = new_bb;
+
+      /* If the only thing in this new block was the label, make sure
+	 the block note gets included.  */
+      if (new_bb->head == new_bb->end)
+	new_bb->end = bb_note;
     }
   else
     {