From 4fb29cc0c4a68efa183c21a0303dcfc19dc6315c Mon Sep 17 00:00:00 2001
From: George Hotz <geohot@gmail.com>
Date: Thu, 30 Apr 2026 07:02:54 -0700
Subject: [PATCH] const assert

---
 tinygrad/uop/ops.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tinygrad/uop/ops.py b/tinygrad/uop/ops.py
index 80f14e2963..509d58433d 100644
--- a/tinygrad/uop/ops.py
+++ b/tinygrad/uop/ops.py
@@ -493,6 +493,7 @@ class UOp(OpMixin, metaclass=UOpMetaClass):
     return UOp(op, out_dtype, all_srcs, **kwargs)
   @staticmethod
   def const(dtype:DType, b:ConstLike, device:str|tuple[str, ...]|None=None, shape:tuple[sint, ...]|None=None):
+    if shape == (): assert dtype.count == 1, "if shape is () you can't have a vec dtype"
     if isinstance(b, UOp): return b.unbind()[0] if b.op is Ops.BIND else b
     if isinstance(b, tuple) and all_same(b):
       assert len(b) > 0, "can't create const from empty tuple"