From d720670393434effa832b686b4a482b736bd9c4d Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Sat, 31 Jul 2010 00:32:17 +0000
Subject: The BlockExtractorPass() constructor was not reading the BlockFile
 and that was exactly what bugpoint expected it to do.

There was also only one user of
BlockExtractorPass(const std::vector<BasicBlock*> &B), so just remove it and
make BlockExtractorPass read BlockFile.

This fixes bugpoint's block extraction.

Nick, please review.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109936 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Transforms/IPO.h        | 2 +-
 lib/Transforms/IPO/LoopExtractor.cpp | 8 +++-----
 tools/bugpoint/ExtractFunction.cpp   | 3 +--
 3 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/include/llvm/Transforms/IPO.h b/include/llvm/Transforms/IPO.h
index 8fb4b63c64..fc67bc594b 100644
--- a/include/llvm/Transforms/IPO.h
+++ b/include/llvm/Transforms/IPO.h
@@ -181,7 +181,7 @@ Pass *createSingleLoopExtractorPass();
 /// createBlockExtractorPass - This pass extracts all blocks (except those
 /// specified in the argument list) from the functions in the module.
 ///
-ModulePass *createBlockExtractorPass(const std::vector<BasicBlock*> &BTNE);
+ModulePass *createBlockExtractorPass();
 
 /// createStripDeadPrototypesPass - This pass removes any function declarations
 /// (prototypes) that are not used.
diff --git a/lib/Transforms/IPO/LoopExtractor.cpp b/lib/Transforms/IPO/LoopExtractor.cpp
index fa8eb5e9fb..fd60adfc50 100644
--- a/lib/Transforms/IPO/LoopExtractor.cpp
+++ b/lib/Transforms/IPO/LoopExtractor.cpp
@@ -147,12 +147,10 @@ namespace {
     std::vector<std::pair<std::string, std::string> > BlocksToNotExtractByName;
   public:
     static char ID; // Pass identification, replacement for typeid
-    explicit BlockExtractorPass(const std::vector<BasicBlock*> &B) 
-      : ModulePass(&ID), BlocksToNotExtract(B) {
+    BlockExtractorPass() : ModulePass(&ID) {
       if (!BlockFile.empty())
         LoadFile(BlockFile.c_str());
     }
-    BlockExtractorPass() : ModulePass(&ID) {}
 
     bool runOnModule(Module &M);
   };
@@ -166,9 +164,9 @@ INITIALIZE_PASS(BlockExtractorPass, "extract-blocks",
 // createBlockExtractorPass - This pass extracts all blocks (except those
 // specified in the argument list) from the functions in the module.
 //
-ModulePass *llvm::createBlockExtractorPass(const std::vector<BasicBlock*> &BTNE)
+ModulePass *llvm::createBlockExtractorPass()
 {
-  return new BlockExtractorPass(BTNE);
+  return new BlockExtractorPass();
 }
 
 void BlockExtractorPass::LoadFile(const char *Filename) {
diff --git a/tools/bugpoint/ExtractFunction.cpp b/tools/bugpoint/ExtractFunction.cpp
index e0f9db6d43..6913fd06a9 100644
--- a/tools/bugpoint/ExtractFunction.cpp
+++ b/tools/bugpoint/ExtractFunction.cpp
@@ -354,8 +354,7 @@ Module *BugDriver::ExtractMappedBlocksFromModule(const
   const char *ExtraArg = uniqueFN.c_str();
 
   std::vector<const PassInfo*> PI;
-  std::vector<BasicBlock *> EmptyBBs; // This parameter is ignored.
-  PI.push_back(getPI(createBlockExtractorPass(EmptyBBs)));
+  PI.push_back(getPI(createBlockExtractorPass()));
   Module *Ret = runPassesOn(M, PI, false, 1, &ExtraArg);
 
   uniqueFilename.eraseFromDisk(); // Free disk space
-- 
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