[lno-branch]: Patch to fix bootstrap problem on darwin

[Dorit Naishlos]

> This at least gets past the first failure. tree_fold_int_plus can
> return a NON_LVALUE_EXPR

thanks! (bootstrapping now)

dorit



                                                                       
                      Daniel Berlin                                    
                      <dberlin@dberlin.        To:       GCC Patches <gcc-patches@gcc.gnu.org>
                      org>                     cc:       Pop Sébastian <pop@gauvain.u-strasbg.fr>, Dorit
                                                Naishlos/Haifa/IBM@IBMIL
                      12/01/2004 03:16         Subject:  [lno-branch]: Patch to fix bootstrap problem on darwin
                                                                       




This at least gets past the first failure. tree_fold_int_plus can
return a NON_LVALUE_EXPR

Index: tree-chrec.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/Attic/tree-chrec.c,v
retrieving revision 1.1.2.2
diff -u -3 -p -r1.1.2.2 tree-chrec.c
--- tree-chrec.c        9 Jan 2004 12:15:53 -0000       1.1.2.2
+++ tree-chrec.c        12 Jan 2004 01:16:25 -0000
@@ -990,7 +990,11 @@ chrec_fold_plus (tree op0,
         case PARM_DECL:
           if (TREE_CODE (TREE_TYPE (op0)) != REAL_TYPE
               && TREE_CODE (TREE_TYPE (op0)) != REAL_TYPE)
-           return tree_fold_int_plus (op0, op1);
+    {
+      tree temp = tree_fold_int_plus (op0, op1);
+      if (TREE_CODE (temp) == NON_LVALUE_EXPR)
+        return TREE_OPERAND (temp, 0);
+    }

         case REAL_CST:
           return build (PLUS_EXPR, TREE_TYPE (op1),