Store strings for `defined` in the iseqs

We can know the string used for "defined" calls at compile time, then
store the string in the instruction sequences

1 files changed, 6 insertions, 1 deletions

diff --git a/insns.def b/insns.def
index e3c7ad5e7b..55564c4792 100644
--- a/insns.def
+++ b/insns.def
@@ -667,7 +667,12 @@ defined
 (VALUE val)
 // attr bool leaf = leafness_of_defined(op_type);
 {
-    val = vm_defined(ec, GET_CFP(), op_type, obj, needstr, v);
+    if (vm_defined(ec, GET_CFP(), op_type, obj, Qfalse, v)) {
+      val = needstr;
+    }
+    else {
+      val = Qnil;
+    }
 }
 
 /* check `target' matches `pattern'.