default.h

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#ifndef TVM_TOPI_X86_DEFAULT_H_
#define TVM_TOPI_X86_DEFAULT_H_

#include <tvm/target/generic_func.h>
#include <tvm/te/operation.h>
#include <tvm/te/schedule_pass.h>
#include <tvm/topi/detail/fuse.h>
#include <tvm/topi/tags.h>

namespace tvm {
namespace topi {

using namespace tvm::te;

namespace x86 {
inline Schedule MakeDefaultSchedule(const Target& target, const Array<Tensor>& outs,
                                    bool auto_inline) {
  Array<Operation> out_ops;
  for (auto t : outs) {
    out_ops.push_back(t->op);
  }
  auto s = create_schedule(out_ops);
  auto x = outs[0];
  auto axis = s[x]->op.as<ComputeOpNode>()->axis;

  if (auto_inline) {
    tvm::te::AutoInlineInjective(s);
    if (axis.size() > 0) {
      detail::Fuse(s[x], axis);
    }
    return s;
  }

  if (axis.size() == 4) {
    auto n = axis[0];
    auto c = axis[1];
    auto fused = detail::Fuse(s[x], {n, c});  // for nhwc layout, fuse n and h
    s[x].parallel(fused);
  } else {
    s[x].parallel(axis[0]);
  }

  return s;
}

inline Schedule default_schedule(const Target& target, const Array<Tensor>& outs) {
  return MakeDefaultSchedule(target, outs, false);
}

inline Schedule default_schedule_auto_inline(const Target& target, const Array<Tensor>& outs) {
  return MakeDefaultSchedule(target, outs, true);
}

}  // namespace x86
}  // namespace topi
}  // namespace tvm
#endif  // TVM_TOPI_X86_DEFAULT_H_