(fold_convert): When converting a NaN to another type, change the type

of the node before returning it.

From-SVN: r10863

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index ba459c0..14e11d0 100644 (file)
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -1481,7 +1481,11 @@ fold_convert (t, arg1)
       if (TREE_CODE (arg1) == REAL_CST)
        {
          if (REAL_VALUE_ISNAN (TREE_REAL_CST (arg1)))
-           return arg1;
+           {
+             t = arg1;
+             TREE_TYPE (arg1) = type;
+             return t;
+           }
          else if (setjmp (float_error))
            {
              overflow = 1;