vendor/llvm/llvm-release_39-r276489

1 files changed, 15 insertions, 9 deletions

diff --git a/include/llvm/Bitcode/BitcodeWriterPass.h b/include/llvm/Bitcode/BitcodeWriterPass.h
index a1272cf156e5..946255b878a6 100644
--- a/include/llvm/Bitcode/BitcodeWriterPass.h
+++ b/include/llvm/Bitcode/BitcodeWriterPass.h
@@ -16,12 +16,12 @@
 #define LLVM_BITCODE_BITCODEWRITERPASS_H
 
 #include "llvm/ADT/StringRef.h"
+#include "llvm/IR/PassManager.h"
 
 namespace llvm {
 class Module;
 class ModulePass;
 class raw_ostream;
-class PreservedAnalyses;
 
 /// \brief Create and return a pass that writes the module to the specified
 /// ostream. Note that this pass is designed for use with the legacy pass
@@ -30,11 +30,15 @@ class PreservedAnalyses;
 /// If \c ShouldPreserveUseListOrder, encode use-list order so it can be
 /// reproduced when deserialized.
 ///
-/// If \c EmitFunctionSummary, emit the function summary index (currently
-/// for use in ThinLTO optimization).
+/// If \c EmitSummaryIndex, emit the summary index (currently for use in ThinLTO
+/// optimization).
+///
+/// If \c EmitModuleHash, compute and emit the module hash in the bitcode
+/// (currently for use in ThinLTO incremental build).
 ModulePass *createBitcodeWriterPass(raw_ostream &Str,
                                     bool ShouldPreserveUseListOrder = false,
-                                    bool EmitFunctionSummary = false);
+                                    bool EmitSummaryIndex = false,
+                                    bool EmitModuleHash = false);
 
 /// \brief Pass for writing a module of IR out to a bitcode file.
 ///
@@ -43,7 +47,8 @@ ModulePass *createBitcodeWriterPass(raw_ostream &Str,
 class BitcodeWriterPass {
   raw_ostream &OS;
   bool ShouldPreserveUseListOrder;
-  bool EmitFunctionSummary;
+  bool EmitSummaryIndex;
+  bool EmitModuleHash;
 
 public:
   /// \brief Construct a bitcode writer pass around a particular output stream.
@@ -51,17 +56,18 @@ public:
   /// If \c ShouldPreserveUseListOrder, encode use-list order so it can be
   /// reproduced when deserialized.
   ///
-  /// If \c EmitFunctionSummary, emit the function summary index (currently
+  /// If \c EmitSummaryIndex, emit the summary index (currently
   /// for use in ThinLTO optimization).
   explicit BitcodeWriterPass(raw_ostream &OS,
                              bool ShouldPreserveUseListOrder = false,
-                             bool EmitFunctionSummary = false)
+                             bool EmitSummaryIndex = false,
+                             bool EmitModuleHash = false)
       : OS(OS), ShouldPreserveUseListOrder(ShouldPreserveUseListOrder),
-        EmitFunctionSummary(EmitFunctionSummary) {}
+  EmitSummaryIndex(EmitSummaryIndex), EmitModuleHash(EmitModuleHash) {}
 
   /// \brief Run the bitcode writer pass, and output the module to the selected
   /// output stream.
-  PreservedAnalyses run(Module &M);
+  PreservedAnalyses run(Module &M, ModuleAnalysisManager &);
 
   static StringRef name() { return "BitcodeWriterPass"; }
 };