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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/eval/tensor/dense/dense_dot_product_function.h>
#include <vespa/eval/tensor/dense/dense_tensor_function_compiler.h>
#include <vespa/eval/eval/operation.h>
using namespace vespalib::eval;
using namespace vespalib::eval::operation;
using namespace vespalib::eval::tensor_function;
using namespace vespalib::tensor;
using vespalib::Stash;
template <typename T>
const T *as(const TensorFunction &function) { return dynamic_cast<const T *>(&function); }
const TensorFunction &
compileDotProduct(const vespalib::string &lhsType,
const vespalib::string &rhsType,
Stash &stash)
{
const Node &reduceNode = reduce(join(inject(ValueType::from_spec(lhsType), 1, stash),
inject(ValueType::from_spec(rhsType), 3, stash),
Mul::f, stash),
Aggr::SUM, {}, stash);
return DenseTensorFunctionCompiler::compile(reduceNode, stash);
}
void
assertCompiledDotProduct(const vespalib::string &lhsType,
const vespalib::string &rhsType)
{
Stash stash;
const TensorFunction &func = compileDotProduct(lhsType, rhsType, stash);
const DenseDotProductFunction *dotProduct = as<DenseDotProductFunction>(func);
ASSERT_TRUE(dotProduct);
EXPECT_EQUAL(1u, dotProduct->lhsTensorId());
EXPECT_EQUAL(3u, dotProduct->rhsTensorId());
}
void
assertNotCompiledDotProduct(const vespalib::string &lhsType,
const vespalib::string &rhsType)
{
Stash stash;
const TensorFunction &func = compileDotProduct(lhsType, rhsType, stash);
const Reduce *reduce = as<Reduce>(func);
EXPECT_TRUE(reduce);
}
TEST("require that dot product with compatible dimensions is compiled")
{
TEST_DO(assertCompiledDotProduct("tensor(x[5])", "tensor(x[5])"));
TEST_DO(assertCompiledDotProduct("tensor(x[3])", "tensor(x[5])"));
TEST_DO(assertCompiledDotProduct("tensor(x[5])", "tensor(x[3])"));
TEST_DO(assertCompiledDotProduct("tensor(x[])", "tensor(x[5])"));
TEST_DO(assertCompiledDotProduct("tensor(x[5])", "tensor(x[])"));
TEST_DO(assertCompiledDotProduct("tensor(x[])", "tensor(x[])"));
}
TEST("require that dot product with incompatible dimensions is NOT compiled")
{
TEST_DO(assertNotCompiledDotProduct("tensor(x[5])", "tensor(y[5])"));
TEST_DO(assertNotCompiledDotProduct("tensor(y[5])", "tensor(x[5])"));
TEST_DO(assertNotCompiledDotProduct("tensor(y[])", "tensor(x[])"));
TEST_DO(assertNotCompiledDotProduct("tensor(x[5])", "tensor(x[5],y[7])"));
TEST_DO(assertNotCompiledDotProduct("tensor(x[5],y[7])", "tensor(x[5],y[7])"));
}
TEST_MAIN() { TEST_RUN_ALL(); }
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