1 files changed, 74 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/tools/opt/Debugify.h b/contrib/llvm-project/llvm/tools/opt/Debugify.h
new file mode 100644
index 000000000000..266f577951ae
--- /dev/null
+++ b/contrib/llvm-project/llvm/tools/opt/Debugify.h
@@ -0,0 +1,74 @@
+//===- Debugify.h - Attach synthetic debug info to everything -------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file Interface to the `debugify` synthetic debug info testing utility.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TOOLS_OPT_DEBUGIFY_H
+#define LLVM_TOOLS_OPT_DEBUGIFY_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/MapVector.h"
+#include "llvm/IR/PassManager.h"
+#include "llvm/Support/raw_ostream.h"
+
+llvm::ModulePass *createDebugifyModulePass();
+llvm::FunctionPass *createDebugifyFunctionPass();
+
+struct NewPMDebugifyPass : public llvm::PassInfoMixin<NewPMDebugifyPass> {
+  llvm::PreservedAnalyses run(llvm::Module &M, llvm::ModuleAnalysisManager &AM);
+};
+
+/// Track how much `debugify` information has been lost.
+struct DebugifyStatistics {
+  /// Number of missing dbg.values.
+  unsigned NumDbgValuesMissing = 0;
+
+  /// Number of dbg.values expected.
+  unsigned NumDbgValuesExpected = 0;
+
+  /// Number of instructions with empty debug locations.
+  unsigned NumDbgLocsMissing = 0;
+
+  /// Number of instructions expected to have debug locations.
+  unsigned NumDbgLocsExpected = 0;
+
+  /// Get the ratio of missing/expected dbg.values.
+  float getMissingValueRatio() const {
+    return float(NumDbgValuesMissing) / float(NumDbgLocsExpected);
+  }
+
+  /// Get the ratio of missing/expected instructions with locations.
+  float getEmptyLocationRatio() const {
+    return float(NumDbgLocsMissing) / float(NumDbgLocsExpected);
+  }
+};
+
+/// Map pass names to a per-pass DebugifyStatistics instance.
+using DebugifyStatsMap = llvm::MapVector<llvm::StringRef, DebugifyStatistics>;
+
+/// Export per-pass debugify statistics to the file specified by \p Path.
+void exportDebugifyStats(llvm::StringRef Path, const DebugifyStatsMap &Map);
+
+llvm::ModulePass *
+createCheckDebugifyModulePass(bool Strip = false,
+                              llvm::StringRef NameOfWrappedPass = "",
+                              DebugifyStatsMap *StatsMap = nullptr);
+
+llvm::FunctionPass *
+createCheckDebugifyFunctionPass(bool Strip = false,
+                                llvm::StringRef NameOfWrappedPass = "",
+                                DebugifyStatsMap *StatsMap = nullptr);
+
+struct NewPMCheckDebugifyPass
+    : public llvm::PassInfoMixin<NewPMCheckDebugifyPass> {
+  llvm::PreservedAnalyses run(llvm::Module &M, llvm::ModuleAnalysisManager &AM);
+};
+
+#endif // LLVM_TOOLS_OPT_DEBUGIFY_H