pytorch/test/cpp/lazy/test_ir_util.cpp
Will Constable 69389fb542 Sync lazy_tensor_staging back to master (#72875)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/72875

This diff contains changes from several PRs landed to lazy_tensor_staging branch.
* generating 'fallback' overrides for each codegenned op, useful for debugging
* supports operators which are missing aten:: symbols for op names, instead using their string counterpart
* makes the IR class a base class instead of hardcoding the assumption of TS

It also resolves lint issues and in particular cleans up the following:
* {Type}s shouldn't be passed into isValueType, and using the catch-all base class of CType is nicer than specifying a list of types.

Fixes #72852

Test Plan: test manually on lazy_tensor_staging branch

Reviewed By: shunting314

Differential Revision: D34250357

fbshipit-source-id: aa7d589f605055d5d02bc77c77fa6f1182ff7497
(cherry picked from commit 2f8f5e4971)
2022-02-18 03:49:46 +00:00

84 lines
2.1 KiB
C++

#include <gtest/gtest.h>
#include <c10/util/Exception.h>
#include <torch/csrc/lazy/core/config.h>
#include <torch/csrc/lazy/core/ir.h>
#include <torch/csrc/lazy/core/ir_metadata.h>
#include <torch/csrc/lazy/core/ir_util.h>
namespace torch {
namespace lazy {
class IrUtilNode : public Node {
public:
explicit IrUtilNode()
: Node(OpKind(), /* num_outputs */ 1, /* hash_func */ [&](bool /*bakeInSizes*/) -> hash_t { return Hash(0); }) {}
~IrUtilNode() override = default;
void AddOperand(Value v) {
if (!v.node) {
return;
}
operands_as_outputs_.emplace_back(v.node.get(), v.index);
operands_.push_back(std::move(v.node));
}
const std::vector<Output>& operands() const override {
return operands_as_outputs_;
}
const Output& operand(size_t i) const override {
return operands_as_outputs_.at(i);
}
private:
std::vector<NodePtr> operands_;
std::vector<Output> operands_as_outputs_;
};
/* a
* / \
*b c
* \ /
* d
* Post-order: d c b a
*/
TEST(IrUtilTest, BasicTest) {
NodePtr a = MakeNode<IrUtilNode>();
NodePtr b = MakeNode<IrUtilNode>();
NodePtr c = MakeNode<IrUtilNode>();
NodePtr d = MakeNode<IrUtilNode>();
dynamic_cast<IrUtilNode*>(a.get())->AddOperand(Value(b, 0));
dynamic_cast<IrUtilNode*>(a.get())->AddOperand(Value(c, 1));
dynamic_cast<IrUtilNode*>(b.get())->AddOperand(Value(d, 0));
dynamic_cast<IrUtilNode*>(c.get())->AddOperand(Value(d, 0));
std::vector<Node*> postorder = Util::ComputePostOrder({a.get()});
EXPECT_EQ(postorder.size(), 4);
EXPECT_EQ(postorder.at(0), d.get());
EXPECT_EQ(postorder.at(1), c.get());
EXPECT_EQ(postorder.at(2), b.get());
EXPECT_EQ(postorder.at(3), a.get());
}
/* a
* / \
*b---c
* Post-order: not valid
*/
TEST(IrUtilTest, TestCircle) {
NodePtr a = MakeNode<IrUtilNode>();
NodePtr b = MakeNode<IrUtilNode>();
NodePtr c = MakeNode<IrUtilNode>();
dynamic_cast<IrUtilNode*>(a.get())->AddOperand(Value(b, 0));
dynamic_cast<IrUtilNode*>(b.get())->AddOperand(Value(c, 0));
dynamic_cast<IrUtilNode*>(c.get())->AddOperand(Value(a, 0));
EXPECT_THROW(Util::ComputePostOrder({a.get()}), c10::Error);
}
} // namespace lazy
} // namespace torch