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https://github.com/zebrajr/pytorch.git
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3b8245ab12
Summary: Since `c10::ArrayRef` now support `c10::ArrayRef<const T>`, let's restore `ComputePostOrder` to accept `const Node*` again, which is more suitable for the context of the given helpers. Test Plan: CI. Pull Request resolved: https://github.com/pytorch/pytorch/pull/88773 Approved by: https://github.com/JackCaoG
82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
#include <gtest/gtest.h>
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#include <c10/util/Exception.h>
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#include <torch/csrc/lazy/core/config.h>
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#include <torch/csrc/lazy/core/ir.h>
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#include <torch/csrc/lazy/core/ir_builder.h>
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#include <torch/csrc/lazy/core/ir_metadata.h>
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#include <torch/csrc/lazy/core/ir_util.h>
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namespace torch {
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namespace lazy {
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class IrUtilNode : public Node {
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public:
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explicit IrUtilNode() : Node(OpKind(), /* num_outputs */ 1), hash_(Hash(0)) {}
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~IrUtilNode() override = default;
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void AddOperand(Value v) {
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if (!v.node) {
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return;
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}
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operands_as_outputs_.emplace_back(v.node.get(), v.index);
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operands_.push_back(std::move(v.node));
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}
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hash_t hash() const override {
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return hash_;
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}
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hash_t shapeHash() const override {
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return hash_;
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}
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private:
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hash_t hash_;
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};
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/* a
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* / \
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*b c
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* \ /
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* d
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* Post-order: d c b a
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*/
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TEST(IrUtilTest, BasicTest) {
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NodePtr a = MakeNode<IrUtilNode>();
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NodePtr b = MakeNode<IrUtilNode>();
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NodePtr c = MakeNode<IrUtilNode>();
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NodePtr d = MakeNode<IrUtilNode>();
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dynamic_cast<IrUtilNode*>(a.get())->AddOperand(Value(b, 0));
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dynamic_cast<IrUtilNode*>(a.get())->AddOperand(Value(c, 1));
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dynamic_cast<IrUtilNode*>(b.get())->AddOperand(Value(d, 0));
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dynamic_cast<IrUtilNode*>(c.get())->AddOperand(Value(d, 0));
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auto postorder = Util::ComputePostOrder({a.get()});
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EXPECT_EQ(postorder.size(), 4);
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EXPECT_EQ(postorder.at(0), d.get());
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EXPECT_EQ(postorder.at(1), c.get());
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EXPECT_EQ(postorder.at(2), b.get());
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EXPECT_EQ(postorder.at(3), a.get());
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}
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/* a
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* / \
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*b---c
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* Post-order: not valid
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*/
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TEST(IrUtilTest, TestCircle) {
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NodePtr a = MakeNode<IrUtilNode>();
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NodePtr b = MakeNode<IrUtilNode>();
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NodePtr c = MakeNode<IrUtilNode>();
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dynamic_cast<IrUtilNode*>(a.get())->AddOperand(Value(b, 0));
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dynamic_cast<IrUtilNode*>(b.get())->AddOperand(Value(c, 0));
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dynamic_cast<IrUtilNode*>(c.get())->AddOperand(Value(a, 0));
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EXPECT_THROW(Util::ComputePostOrder({a.get()}), c10::Error);
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}
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} // namespace lazy
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} // namespace torch
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