@@ -93,7 +93,8 @@ def map_variable(self, expr, type_context):
             # FIXME: This is a pretty coarse way of deciding what
             # private temporaries get duplicated. Refine? (See also
             # below in decl generation)
-            gsize, lsize = self.kernel.get_grid_size_upper_bounds_as_exprs()
+            _gsize, lsize = self.kernel.get_grid_size_upper_bounds_as_exprs(
+                    self.codegen_state.callables_table)
             if lsize:
                 return expr[var("programIndex")]
             else:
 
@@ -788,6 +788,28 @@ def test_no_uint_in_cuda_code():
     assert "uint" not in lp.generate_code_v2(knl).device_code()
 
 
+def test_ispc_private_var():
+    # https://github.com/inducer/loopy/issues/763
+    knl = lp.make_kernel(
+            "{ [k]: 0<=k<K }",
+            """
+            <float32> b = 6.0 * float_pos[k]
+            output[k] = 2.0 * b
+            """, [lp.ValueArg("K", is_input=True),
+                  lp.GlobalArg("float_pos", np.float32, shape=lp.auto,
+                               is_input=True, is_output=False),
+                  lp.GlobalArg("output", np.uint8, shape=lp.auto, is_input=False,
+                               is_output=True)],
+            target=lp.ISPCTarget(), assumptions="1<K")
+
+    knl = lp.split_iname(knl, "k", 8, inner_tag="l.0")
+    knl = lp.set_temporary_address_space(knl, "b", "private")
+
+    cg_result = lp.generate_code_v2(knl)
+
+    print(cg_result.device_code())
+
+
 if __name__ == "__main__":
     if len(sys.argv) > 1:
         exec(sys.argv[1])