Local parallel reduction lowering fails for reduction size of 1

$ PYOPENCL_TEST=port python test_reduction.py "test_local_parallel_reduction(cl._csc, 1)"
No protocol specified
Traceback (most recent call last):
  File "test_reduction.py", line 410, in <module>
    exec(sys.argv[1])
  File "<string>", line 1, in <module>
  File "test_reduction.py", line 214, in test_local_parallel_reduction
    lp.auto_test_vs_ref(ref_knl, ctx, knl)
  File "/home/matt/src/loopy/loopy/auto_test.py", line 524, in auto_test_vs_ref
    test_knl = lp.preprocess_kernel(test_knl)
  File "/home/matt/src/loopy/loopy/preprocess.py", line 924, in preprocess_kernel
    kernel = realize_reduction(kernel, unknown_types_ok=False)
  File "/home/matt/src/loopy/loopy/preprocess.py", line 670, in realize_reduction
    new_expressions = (cb_mapper(insn.expression),)
  File "/home/matt/src/pymbolic/pymbolic/mapper/__init__.py", line 134, in __call__
    return method(expr, *args, **kwargs)
  File "/home/matt/src/loopy/loopy/symbolic.py", line 1352, in map_reduction
    result = self.callback(expr, self.rec, **kwargs)
  File "/home/matt/src/loopy/loopy/preprocess.py", line 628, in map_reduction
    reduction_dtypes)
  File "/home/matt/src/loopy/loopy/preprocess.py", line 542, in map_reduction_local
    new_insn_add_within_inames.add(stage_exec_iname or base_exec_iname)
UnboundLocalError: local variable 'stage_exec_iname' referenced before assignment

Hmm, I actually had a fix for this. One sec

mentioned in merge request !93 (closed)

mentioned in merge request !94 (merged)

closed via merge request !94 (merged)

closed via commit 0d14e7a7

mentioned in commit 2b722498

mentioned in commit 0d14e7a7