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Check iter_type in vectorize #1921

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Merged
tqchen merged 1 commit into from
Oct 19, 2018
Merged

Check iter_type in vectorize #1921

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7 changes: 7 additions & 0 deletions src/schedule/schedule_lang.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -352,6 +352,13 @@ inline void SetAttrIterType(StageNode* self, IterVar var, IterVarType iter_type)
}

Stage& Stage::vectorize(IterVar var) { // NOLINT(*)
CHECK(var->iter_type == kDataPar ||
var->iter_type == kOpaque ||
var->iter_type == kUnrolled ||
var->iter_type == kVectorized ||
var->iter_type == kTensorized ||
var->iter_type == kParallelized)
<< "Cannot vectorize on " << IterVarType2String(var->iter_type);
SetAttrIterType(operator->(), var, kVectorized);
return *this;
}
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9 changes: 9 additions & 0 deletions tests/python/unittest/test_lang_schedule.py
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@@ -1,3 +1,4 @@
from nose.tools import raises
import tvm
import pickle as pkl

Expand Down Expand Up @@ -112,6 +113,13 @@ def test_vectorize():
assert s[T].iter_var_attrs[xi].iter_type == UNROLL
assert s[T].iter_var_attrs[yi].iter_type == VECTORIZE

@raises(Exception)
def test_vectorize_commreduce():
V = tvm.placeholder((128,), name='V')
ax = tvm.reduce_axis((0, 128), name='ax')
O = tvm.compute((1,), lambda _: tvm.sum(V[ax], axis=[ax]))
s = tvm.create_schedule(O.op)
s[O].vectorize(ax) # should throw here

def test_pragma():
m = 100
Expand Down Expand Up @@ -197,3 +205,4 @@ def intrin_func(ins, outs):
test_split()
test_fuse()
test_vectorize()
test_vectorize_commreduce()