File: frozen_graph_optimizations.cpp

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#include <c10/util/irange.h>
#include <torch/csrc/jit/ir/alias_analysis.h>
#include <torch/csrc/jit/ir/ir_views.h>
#include <torch/csrc/jit/passes/frozen_concat_linear.h>
#include <torch/csrc/jit/passes/frozen_conv_folding.h>
#include <torch/csrc/jit/passes/frozen_graph_optimizations.h>
#include <torch/csrc/jit/passes/remove_dropout.h>
#include <torch/csrc/jit/runtime/graph_executor.h>
#include <torch/csrc/utils/memory.h>

namespace torch {
namespace jit {

void OptimizeFrozenGraph(
    std::shared_ptr<Graph>& graph,
    bool optimize_numerics) {
  removeDropout(graph);
  FrozenConcatLinear(graph);
  // run a couple times to capture Conv -> Mul -> Add etc
  if (optimize_numerics) {
    bool changed = false;
    do {
      changed = false;
      changed |= FoldFrozenConvBatchnorm(graph);
      changed |= FoldFrozenConvAddOrSub(graph);
      changed |= FoldFrozenConvMulOrDiv(graph);
    } while (changed);
  }
}

} // namespace jit
} // namespace torch