* except.c (emit_to_new_bb_before): Break fallthru edges.

From-SVN: r79071

* except.c (emit_to_new_bb_before): Break fallthru edges.
From-SVN: r79071
a61bf177 · Jan Hubicka · Jan Hubicka · 17c60946 · a61bf177 · a61bf177
Commit a61bf177 authored Mar 07, 2004 by Jan Hubicka Committed by Jan Hubicka Mar 07, 2004
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gcc/ChangeLog
+4 -0

gcc/except.c
+7 -0

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+2004-03-07  Jan Hubicka  <jh@suse.cz>
+
+	* except.c (emit_to_new_bb_before):  Break fallthru edges.
+
 2004-03-07  Stephane Carrez  <stcarrez@nerim.fr>

 	* config/m68hc11/m68hc11.md ("*lshrsi3_const"): Disable for 68HC12.

--- a/gcc/except.c
+++ b/gcc/except.c
@@ -1637,7 +1637,14 @@ emit_to_new_bb_before (rtx seq, rtx insn)
 {
  rtx last;
  basic_block bb;
+  edge e;

+  /* If there happens to be an fallthru edge (possibly created by cleanup_cfg
+     call), we don't want it to go into newly created landing pad or other EH 
+     construct.  */
+  for (e = BLOCK_FOR_INSN (insn)->pred; e; e = e->pred_next)
+    if (e->flags & EDGE_FALLTHRU)
+      force_nonfallthru (e);
  last = emit_insn_before (seq, insn);
  if (GET_CODE (last) == BARRIER)
    last = PREV_INSN (last);