c: cast should narrow for narrow ints

1 files changed, 3 insertions, 2 deletions

diff --git a/c/c.c b/c/c.c
index 5a0f5bd..ab477da 100644
--- a/c/c.c
+++ b/c/c.c
@@ -3227,9 +3227,10 @@ compileexpr(struct function *fn, const struct expr *ex, bool discard)
    case EPLUS:
       r = compileexpr(fn, sub, discard);
       if (discard) return NOREF;
-      if (isscalar(ex->ty) && typesize(ex->ty) < typesize(sub->ty))
+      r = cvt(fn, ex->ty, sub->ty, r);
+      if (isint(ex->ty) && typesize(ex->ty) < typesize(sub->ty))
          return narrow(fn, type2cls[scalartypet(ex->ty)], ex->ty, r, 0);
-      return cvt(fn, ex->ty, sub->ty, r);
+      return r;
    case ENEG:
       op = Oneg;
       goto Unary;