pytorch/torch/csrc/jit/codegen/fuser/fallback.cpp
Edward Yang 9d42177a31 Delete OperatorOptions, absorb AliasAnalysisKind into FunctionSchema. (#34160)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/34160

I constructed the patch by deleting OperatorOptions and then rerouting
all queries for AliasAnalysisKind to FunctionSchema.  Some of the
behavior is kind of bogus: we really shouldn't be mutating FunctionSchema
after the fact, but that won't get fixed until we actually switch to
true schema merging.

Signed-off-by: Edward Z. Yang <ezyang@fb.com>

Test Plan: Imported from OSS

Differential Revision: D20282846

Pulled By: ezyang

fbshipit-source-id: ba7bca6e8adc3365789639b88e54c4e881b1692e
2020-03-11 07:15:18 -07:00

53 lines
1.4 KiB
C++

#include <torch/csrc/jit/codegen/fuser/fallback.h>
#include <ATen/core/functional.h> //fmap
#include <ATen/core/stack.h>
#include <torch/csrc/jit/runtime/custom_operator.h>
#include <torch/csrc/jit/codegen/fuser/kernel_cache.h>
#include <torch/csrc/jit/runtime/interpreter.h>
#include <torch/csrc/jit/ir/ir.h>
#include <stdexcept>
namespace torch {
namespace jit {
namespace fuser {
namespace {
c10::AliasAnalysisKind aliasAnalysisIsSpecialCase() {
return AliasAnalysisKind::INTERNAL_SPECIAL_CASE;
}
} // namespace
// Registers fused operators so that fused graphs can properly generate fallback
// code.
RegisterOperators reg_fused_operators({Operator(
prim::FusedConcat,
[](const Node* node) -> Operation {
int64_t dim = node->i(attr::dim);
int64_t num_inputs = node->inputs().size();
return [dim, num_inputs](Stack& stack) {
auto result = at::cat(
fmap(
last(stack, num_inputs),
[](const IValue& i) { return i.toTensor(); }),
dim);
drop(stack, num_inputs);
pack(stack, std::move(result));
return 0;
};
},
aliasAnalysisIsSpecialCase())});
void runFallback(int64_t key, Stack& stack) {
auto maybe_spec = retrieve(key);
if (!maybe_spec)
throw std::runtime_error("Failed to find fusion spec to run fallback.");
InterpreterState{(*maybe_spec)->code()}.run(stack);
}
} // namespace fuser
} // namespace jit
} // namespace torch