Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/tools/opt/NewPMDriver.h

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+//===- NewPMDriver.h - Function to drive opt with the new PM ----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+/// \file
+///
+/// A single function which is called to drive the opt behavior for the new
+/// PassManager.
+///
+/// This is only in a separate TU with a header to avoid including all of the
+/// old pass manager headers and the new pass manager headers into the same
+/// file. Eventually all of the routines here will get folded back into
+/// opt.cpp.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TOOLS_OPT_NEWPMDRIVER_H
+#define LLVM_TOOLS_OPT_NEWPMDRIVER_H
+
+namespace llvm {
+class StringRef;
+class LLVMContext;
+class Module;
+class TargetMachine;
+class ToolOutputFile;
+
+namespace opt_tool {
+enum OutputKind {
+  OK_NoOutput,
+  OK_OutputAssembly,
+  OK_OutputBitcode,
+  OK_OutputThinLTOBitcode,
+};
+enum VerifierKind {
+  VK_NoVerifier,
+  VK_VerifyInAndOut,
+  VK_VerifyEachPass
+};
+}
+
+/// \brief Driver function to run the new pass manager over a module.
+///
+/// This function only exists factored away from opt.cpp in order to prevent
+/// inclusion of the new pass manager headers and the old headers into the same
+/// file. It's interface is consequentially somewhat ad-hoc, but will go away
+/// when the transition finishes.
+///
+/// ThinLTOLinkOut is only used when OK is OK_OutputThinLTOBitcode, and can be
+/// nullptr.
+bool runPassPipeline(StringRef Arg0, Module &M, TargetMachine *TM,
+                     ToolOutputFile *Out, ToolOutputFile *ThinLinkOut,
+                     ToolOutputFile *OptRemarkFile, StringRef PassPipeline,
+                     opt_tool::OutputKind OK, opt_tool::VerifierKind VK,
+                     bool ShouldPreserveAssemblyUseListOrder,
+                     bool ShouldPreserveBitcodeUseListOrder,
+                     bool EmitSummaryIndex, bool EmitModuleHash);
+}
+
+#endif