From 210b9ed9cef6a053d783c2d3926171b30ce6a969 Mon Sep 17 00:00:00 2001
From: justheuristic <justheuristic@gmail.com>
Date: Sun, 18 Sep 2022 00:00:45 +0300
Subject: debug assert

---
 bitsandbytes/autograd/_functions.py | 1 +
 1 file changed, 1 insertion(+)

(limited to 'bitsandbytes/autograd')

diff --git a/bitsandbytes/autograd/_functions.py b/bitsandbytes/autograd/_functions.py
index 25ff1a5..7441a22 100644
--- a/bitsandbytes/autograd/_functions.py
+++ b/bitsandbytes/autograd/_functions.py
@@ -323,6 +323,7 @@ class MatMul8bitLt(torch.autograd.Function):
 
         # 4. Mixed-precision decomposition matmul
         if coo_tensorA is not None and subA is not None:
+            assert subA.dtype == state.subB.dtype == output.dtype
             output.addmm_(subA, state.subB)
 
         # 5. Save state
-- 
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