1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c
index ed5fe1e3cea..2c69178a0ae 100644
--- a/gcc/tree-ssa-ccp.c
+++ b/gcc/tree-ssa-ccp.c
@@ -629,6 +629,11 @@ get_value_for_expr (tree expr, bool for_bits_p)
       val.mask = -1;
       val.value = NULL_TREE;
     }
+
+  if (val.lattice_val == VARYING
+      && TYPE_UNSIGNED (TREE_TYPE (expr)))
+    val.mask = wi::zext (val.mask, TYPE_PRECISION (TREE_TYPE (expr)));
+
   return val;
 }