From 6873784a8a4832fb79a793f8ea3736f11f590032 Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Mon, 10 Jul 2017 16:42:40 -0500
Subject: [PATCH] Fix: Fix PyOpenCLKernelExecutor.get_code to adequately
 preprocess arg_to_dtype so that get_typed_and_scheduled_kernel caching works

---
 loopy/target/pyopencl_execution.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/loopy/target/pyopencl_execution.py b/loopy/target/pyopencl_execution.py
index f7400d5d0..2da25ba39 100644
--- a/loopy/target/pyopencl_execution.py
+++ b/loopy/target/pyopencl_execution.py
@@ -688,7 +688,7 @@ class PyOpenCLKernelExecutor(KernelExecutorBase):
 
     def get_code(self, arg_to_dtype=None):
         def process_dtype(dtype):
-            if issubclass(dtype, np.generic):
+            if isinstance(dtype, type) and issubclass(dtype, np.generic):
                 dtype = np.dtype(dtype)
             if isinstance(dtype, np.dtype):
                 dtype = NumpyType(dtype, self.kernel.target)
-- 
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