* back_end.adb (Call_Back_End): Pass the maximum logical line number

[pf3gnuchains/gcc-fork.git] / gcc / tree-ssa-forwprop.c

diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c
index a8737da..d707db5 100644 (file)
--- a/gcc/tree-ssa-forwprop.c
+++ b/gcc/tree-ssa-forwprop.c
@@ -465,16 +465,15 @@ forward_propagate_into_comparison (gimple_stmt_iterator *gsi)
   gimple stmt = gsi_stmt (*gsi);
   tree tmp;
   bool cfg_changed = false;
+  tree type = TREE_TYPE (gimple_assign_lhs (stmt));
   tree rhs1 = gimple_assign_rhs1 (stmt);
   tree rhs2 = gimple_assign_rhs2 (stmt);
 
   /* Combine the comparison with defining statements.  */
   tmp = forward_propagate_into_comparison_1 (stmt,
                                             gimple_assign_rhs_code (stmt),
-                                            TREE_TYPE
-                                              (gimple_assign_lhs (stmt)),
-                                            rhs1, rhs2);
-  if (tmp)
+                                            type, rhs1, rhs2);
+  if (tmp && useless_type_conversion_p (type, TREE_TYPE (tmp)))
     {
       gimple_assign_set_rhs_from_tree (gsi, tmp);
       fold_stmt (gsi);
@@ -598,7 +597,8 @@ forward_propagate_into_cond (gimple_stmt_iterator *gsi_p)
        }
     }
 
-  if (tmp)
+  if (tmp
+      && is_gimple_condexpr (tmp))
     {
       if (dump_file && tmp)
        {
@@ -1596,7 +1596,8 @@ simplify_builtin_call (gimple_stmt_iterator *gsi_p, tree callee2)
              if (!is_gimple_val (ptr1))
                ptr1 = force_gimple_operand_gsi (gsi_p, ptr1, true, NULL_TREE,
                                                 true, GSI_SAME_STMT);
-             gimple_call_set_fndecl (stmt2, built_in_decls [BUILT_IN_MEMCPY]);
+             gimple_call_set_fndecl (stmt2,
+                                     builtin_decl_explicit (BUILT_IN_MEMCPY));
              gimple_call_set_arg (stmt2, 0, ptr1);
              gimple_call_set_arg (stmt2, 1, new_str_cst);
              gimple_call_set_arg (stmt2, 2,