re PR ipa/65028 (450.soplex in SPEC CPU 2006 is miscompiled)

	PR ipa/65028
	* ipa-cp.c (propagate_alignment_accross_jump_function): Fix propagation
	across jump functions.

Co-Authored-By: Jan Hubicka <hubicka@ucw.cz>

From-SVN: r220826

gcc/ChangeLog

+2015-02-19  Martin Jambor  <mjmabor@suse.cz>
+	    Jan Hubicka  <hubicka@ucw.cz>
+
+	PR ipa/65028
+	* ipa-cp.c (propagate_alignment_accross_jump_function): Fix propagation
+	across jump functions.
+
 2015-02-19  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/alpha/alpha.c (alpha_in_small_data_p): Reject common symbols.

gcc/ipa-cp.c

@@ -1438,8 +1438,7 @@ propagate_alignment_accross_jump_function (struct cgraph_edge *cs,
 	  if (op != NOP_EXPR)
 	    {
 	      if (op != POINTER_PLUS_EXPR
-		  && op != PLUS_EXPR
-		  && op != MINUS_EXPR)
+		  && op != PLUS_EXPR)
 		goto prop_fail;
 	      tree operand = ipa_get_jf_pass_through_operand (jfunc);
 	      if (!tree_fits_shwi_p (operand))
@@ -1451,7 +1450,7 @@ propagate_alignment_accross_jump_function (struct cgraph_edge *cs,
       else
 	{
 	  src_idx = ipa_get_jf_ancestor_formal_id (jfunc);
-	  offset = ipa_get_jf_ancestor_offset (jfunc);
+	  offset = ipa_get_jf_ancestor_offset (jfunc) / BITS_PER_UNIT;;
 	}
 
       src_lats = ipa_get_parm_lattices (caller_info, src_idx);