re PR middle-end/38371 (Fold check error during bootstrap)

	PR middle-end/38371
	* fold-const.c (fold_checksum_tree): Allow modification of
	TYPE_NEXT_VARIANT.

From-SVN: r142430

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 29104d84018cfae11859d2fbb0b4f4a7875ea8d4..a8aba92c2cf0ef28363a8e150d801e74cbbf49ce 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-12-04  Jakub Jelinek  <jakub@redhat.com>
+
+       PR middle-end/38371
+       * fold-const.c (fold_checksum_tree): Allow modification of
+       TYPE_NEXT_VARIANT.
+
 2008-12-03  Jakub Jelinek  <jakub@redhat.com>
 
        PR middle-end/38360

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 93415d8cbaca50e84b4473f40a4a0aa505a10b5e..41779e576bbcb2b79ce7012a261442b38f526ef3 100644 (file)
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -13364,9 +13364,11 @@ recursive_label:
       expr = (tree) &buf;
     }
   else if (TREE_CODE_CLASS (code) == tcc_type
-          && (TYPE_POINTER_TO (expr) || TYPE_REFERENCE_TO (expr)
+          && (TYPE_POINTER_TO (expr)
+              || TYPE_REFERENCE_TO (expr)
               || TYPE_CACHED_VALUES_P (expr)
-              || TYPE_CONTAINS_PLACEHOLDER_INTERNAL (expr)))
+              || TYPE_CONTAINS_PLACEHOLDER_INTERNAL (expr)
+              || TYPE_NEXT_VARIANT (expr)))
     {
       /* Allow these fields to be modified.  */
       tree tmp;
@@ -13375,6 +13377,7 @@ recursive_label:
       TYPE_CONTAINS_PLACEHOLDER_INTERNAL (tmp) = 0;
       TYPE_POINTER_TO (tmp) = NULL;
       TYPE_REFERENCE_TO (tmp) = NULL;
+      TYPE_NEXT_VARIANT (tmp) = NULL;
       if (TYPE_CACHED_VALUES_P (tmp))
        {
          TYPE_CACHED_VALUES_P (tmp) = 0;