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1 //===- NewPMDriver.h - Function to drive opt with the new PM ----*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 /// \file
10 ///
11 /// A single function which is called to drive the opt behavior for the new
12 /// PassManager.
13 ///
14 /// This is only in a separate TU with a header to avoid including all of the
15 /// old pass manager headers and the new pass manager headers into the same
16 /// file. Eventually all of the routines here will get folded back into
17 /// opt.cpp.
18 ///
19 //===----------------------------------------------------------------------===//
20 
21 #ifndef LLVM_TOOLS_OPT_NEWPMDRIVER_H
22 #define LLVM_TOOLS_OPT_NEWPMDRIVER_H
23 
24 #include "llvm/ADT/StringRef.h"
25 
26 namespace llvm {
27 class LLVMContext;
28 class Module;
29 class TargetMachine;
30 class tool_output_file;
31 
32 namespace opt_tool {
33 enum OutputKind {
34   OK_NoOutput,
35   OK_OutputAssembly,
36   OK_OutputBitcode
37 };
38 enum VerifierKind {
39   VK_NoVerifier,
40   VK_VerifyInAndOut,
41   VK_VerifyEachPass
42 };
43 }
44 
45 /// \brief Driver function to run the new pass manager over a module.
46 ///
47 /// This function only exists factored away from opt.cpp in order to prevent
48 /// inclusion of the new pass manager headers and the old headers into the same
49 /// file. It's interface is consequentially somewhat ad-hoc, but will go away
50 /// when the transition finishes.
51 bool runPassPipeline(StringRef Arg0, LLVMContext &Context, Module &M,
52                      TargetMachine *TM, tool_output_file *Out,
53                      StringRef PassPipeline, opt_tool::OutputKind OK,
54                      opt_tool::VerifierKind VK,
55                      bool ShouldPreserveAssemblyUseListOrder,
56                      bool ShouldPreserveBitcodeUseListOrder);
57 }
58 
59 #endif
60