re PR middle-end/33348 (gfortran.dg/g77/19990826-3.f fails at -O1)

	PR middle-end/33348
	PR target/33406
	* loop-invariant.c (move_invariant_reg): Unshare sequence.

From-SVN: r128547

gcc/ChangeLog

+2007-09-17  Jan Hubicka  <jh@suse.cz>
+
+	PR middle-end/33348
+	PR target/33406
+	* loop-invariant.c (move_invariant_reg): Unshare sequence.
+
 2007-09-17  Victor Kaplansky  <victork@il.ibm.com>
 
 	PR tree-optimization/33319

gcc/loop-invariant.c

@@ -1243,6 +1243,7 @@ move_invariant_reg (struct loop *loop, unsigned invno)
 	  if (op != reg)
 	    emit_move_insn (reg, op);
 	  seq = get_insns ();
+	  unshare_all_rtl_in_chain (seq);
 	  end_sequence ();
 
 	  if (!seq_insns_valid_p (seq))