+/// createDebugIRPass - Enable interactive stepping through LLVM IR in LLDB (or
+/// GDB) and generate a file with the LLVM IR to be
+/// displayed in the debugger.
+///
+/// Existing debug metadata is preserved (but may be modified) in order to allow
+/// accessing variables in the original source. The line table and file
+/// information is modified to correspond to the lines in the LLVM IR. If
+/// Filename and Directory are empty, a file name is generated based on existing
+/// debug information. If no debug information is available, a temporary file
+/// name is generated.
+///
+/// @param HideDebugIntrinsics Omit debug intrinsics in emitted IR source file.
+/// @param HideDebugMetadata Omit debug metadata in emitted IR source file.
+/// @param Directory Embed this directory in the debug information.
+/// @param Filename Embed this file name in the debug information.
+ModulePass *createDebugIRPass(bool HideDebugIntrinsics,
+ bool HideDebugMetadata,
+ StringRef Directory = StringRef(),
+ StringRef Filename = StringRef());
+
+/// createDebugIRPass - Enable interactive stepping through LLVM IR in LLDB
+/// (or GDB) with an existing IR file on disk. When creating
+/// a DebugIR pass with this function, no source file is
+/// output to disk and the existing one is unmodified. Debug
+/// metadata in the Module is created/updated to point to
+/// the existing textual IR file on disk.
+/// NOTE: If the IR file to be debugged is not on disk, use the version of this
+/// function with parameters in order to generate the file that will be
+/// seen by the debugger.
+ModulePass *createDebugIRPass();
+