1 files changed, 20 insertions, 4 deletions

diff --git a/gcc/tree-streamer-out.c b/gcc/tree-streamer-out.c
index 90dec0a..5858047 100644
--- a/gcc/tree-streamer-out.c
+++ b/gcc/tree-streamer-out.c
@@ -127,8 +127,11 @@ pack_ts_base_value_fields (struct bitpack_d *bp, tree expr)
 static void
 pack_ts_int_cst_value_fields (struct bitpack_d *bp, tree expr)
 {
-  bp_pack_var_len_unsigned (bp, TREE_INT_CST_LOW (expr));
-  bp_pack_var_len_int (bp, TREE_INT_CST_HIGH (expr));
+  int i;
+  /* Note that the number of elements has already been written out in
+     streamer_write_tree_header.  */
+  for (i = 0; i < TREE_INT_CST_EXT_NUNITS (expr); i++)
+    bp_pack_var_len_int (bp, TREE_INT_CST_ELT (expr, i));
 }
 
 
@@ -1008,6 +1011,12 @@ streamer_write_tree_header (struct output_block *ob, tree expr)
     streamer_write_uhwi (ob, call_expr_nargs (expr));
   else if (TREE_CODE (expr) == OMP_CLAUSE)
     streamer_write_uhwi (ob, OMP_CLAUSE_CODE (expr));
+  else if (CODE_CONTAINS_STRUCT (code, TS_INT_CST))
+    {
+      gcc_checking_assert (TREE_INT_CST_NUNITS (expr));
+      streamer_write_uhwi (ob, TREE_INT_CST_NUNITS (expr));
+      streamer_write_uhwi (ob, TREE_INT_CST_EXT_NUNITS (expr));
+    }
 }
 
 
@@ -1017,9 +1026,16 @@ streamer_write_tree_header (struct output_block *ob, tree expr)
 void
 streamer_write_integer_cst (struct output_block *ob, tree cst, bool ref_p)
 {
+  int i;
+  int len = TREE_INT_CST_NUNITS (cst);
   gcc_assert (!TREE_OVERFLOW (cst));
   streamer_write_record_start (ob, LTO_integer_cst);
   stream_write_tree (ob, TREE_TYPE (cst), ref_p);
-  streamer_write_uhwi (ob, TREE_INT_CST_LOW (cst));
-  streamer_write_hwi (ob, TREE_INT_CST_HIGH (cst));
+  /* We're effectively streaming a non-sign-extended wide_int here,
+     so there's no need to stream TREE_INT_CST_EXT_NUNITS or any
+     array members beyond LEN.  We'll recreate the tree from the
+     wide_int and the type.  */
+  streamer_write_uhwi (ob, len);
+  for (i = 0; i < len; i++)
+    streamer_write_hwi (ob, TREE_INT_CST_ELT (cst, i));
 }