1 files changed, 39 insertions, 0 deletions
diff --git a/llvm/include/llvm/Analysis/NoInferenceModelRunner.h b/llvm/include/llvm/Analysis/NoInferenceModelRunner.h
new file mode 100644
index 000000000000..60d6777c765b
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+++ b/llvm/include/llvm/Analysis/NoInferenceModelRunner.h
@@ -0,0 +1,39 @@
+//===- NoInferenceModelRunner.h ---- noop ML model runner  ------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+
+#ifndef LLVM_ANALYSIS_NOINFERENCEMODELRUNNER_H
+#define LLVM_ANALYSIS_NOINFERENCEMODELRUNNER_H
+
+#include "llvm/Config/llvm-config.h"
+
+/// While not strictly necessary to conditionally compile this, it really
+/// has no usecase outside the 'development' mode.
+#ifdef LLVM_HAVE_TF_API
+#include "llvm/Analysis/MLModelRunner.h"
+#include "llvm/Analysis/Utils/TFUtils.h"
+namespace llvm {
+/// A pseudo model runner. We use it to store feature values when collecting
+/// logs for the default policy, in 'development' mode, but never ask it to
+/// 'run'.
+class NoInferenceModelRunner : public MLModelRunner {
+public:
+  NoInferenceModelRunner(LLVMContext &Ctx,
+                         const std::vector<TensorSpec> &Inputs);
+
+private:
+  void *evaluateUntyped() override {
+    llvm_unreachable("We shouldn't call run on this model runner.");
+  }
+  void *getTensorUntyped(size_t Index) override;
+
+  std::vector<std::unique_ptr<char[]>> ValuesBuffer;
+};
+} // namespace llvm
+#endif // defined(LLVM_HAVE_TF_API)
+#endif // defined(LLVM_ANALYSIS_NOINFERENCEMODELRUNNER_H)