re PR rtl-optimization/22619 (Compilation failure for real_const_1.f and real_const_2.f90)

        PR rtl-opt/22619
        * cfgcleanup.c (try_forward_edges): Watch out for end of
        insn chain.

From-SVN: r102536

gcc/ChangeLog

+2005-07-28  Richard Henderson  <rth@redhat.com>
+
+	PR rtl-opt/22619
+	* cfgcleanup.c (try_forward_edges): Watch out for end of
+	insn chain.
+
 2005-07-28  James E Wilson  <wilson@specifixinc.com>
 
 	PR c/23106

gcc/cfgcleanup.c

@@ -537,7 +537,7 @@ try_forward_edges (int mode, basic_block b)
 		    && NOTE_LINE_NUMBER (insn) == NOTE_INSN_LOOP_BEG)
 		  break;
 
-	      if (NOTE_P (insn))
+	      if (insn && NOTE_P (insn))
 		break;
 
 	      /* Do not clean up branches to just past the end of a loop