1 files changed, 33 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/NoInferenceModelRunner.cpp b/llvm/lib/Analysis/NoInferenceModelRunner.cpp
new file mode 100644
index 000000000000..02ece6aa3900
--- /dev/null
+++ b/llvm/lib/Analysis/NoInferenceModelRunner.cpp
@@ -0,0 +1,33 @@
+//===- NoInferenceModelRunner.cpp - noop ML model runner   ----------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// 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'.
+//===----------------------------------------------------------------------===//
+#include "llvm/Config/config.h"
+#if defined(LLVM_HAVE_TF_API)
+
+#include "llvm/Analysis/NoInferenceModelRunner.h"
+#include "llvm/Analysis/Utils/TFUtils.h"
+
+using namespace llvm;
+
+NoInferenceModelRunner::NoInferenceModelRunner(
+    LLVMContext &Ctx, const std::vector<TensorSpec> &Inputs)
+    : MLModelRunner(Ctx) {
+  ValuesBuffer.reserve(Inputs.size());
+  for (const auto &TS : Inputs)
+    ValuesBuffer.push_back(std::make_unique<char[]>(TS.getElementCount() *
+                                                    TS.getElementByteSize()));
+}
+
+void *NoInferenceModelRunner::getTensorUntyped(size_t Index) {
+  return ValuesBuffer[Index].get();
+}
+#endif // defined(LLVM_HAVE_TF_API)