2007-02-13  Alexandre Oliva  <aoliva@redhat.com>

	* reload1.c (fixup_abnormal_edges): Backport relevant portion of

	fix for PR rtl-optimization/23601.

	* g++.dg/eh/bz226706.C: New

--- gcc/reload1.c	2006-10-13 04:32:14.000000000 -0300

+++ gcc/reload1.c	2007-02-13 03:22:08.000000000 -0200

@@ -9524,7 +9524,10 @@ fixup_abnormal_edges ()

 		 && insn != bb->head)

 	    insn = PREV_INSN (insn);

 	  if (GET_CODE (insn) != CALL_INSN && !can_throw_internal (insn))

-	    abort ();

+	    {

+	      purge_dead_edges (bb);

+	      continue;

+	    }

 	  bb->end = insn;

 	  inserted = true;

 	  insn = NEXT_INSN (insn);

--- gcc/testsuite/g++.dg/eh/bz226706.C	1970-01-01 00:00:00.000000000 +0000

+++ gcc/testsuite/g++.dg/eh/bz226706.C	2007-02-13 03:30:16.000000000 -0200

@@ -0,0 +1,13 @@

+/* { dg-do compile } */

+/* { dg-options "-fnon-call-exceptions -fPIC -O2" } */

+

+void foo() {

+     try {

+        float y = 10;

+        while (y > 0) {

+            double z = (y / 10);

+            y = z;

+        }

+     }

+     catch (...) {}

+}