From 5af2be7d09bb520b520aa565d4f5d467a69d313d Mon Sep 17 00:00:00 2001
From: Misha Brukman <brukman+llvm@gmail.com>
Date: Mon, 1 Mar 2004 18:28:34 +0000
Subject: [PATCH] * Add implementation of ExtractBasicBlock() * Add comments to
 ExtractLoop()

llvm-svn: 12053
---
 llvm/lib/Transforms/Utils/CodeExtractor.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/llvm/lib/Transforms/Utils/CodeExtractor.cpp b/llvm/lib/Transforms/Utils/CodeExtractor.cpp
index 38f3c8a4c661..530d2f66b731 100644
--- a/llvm/lib/Transforms/Utils/CodeExtractor.cpp
+++ b/llvm/lib/Transforms/Utils/CodeExtractor.cpp
@@ -566,8 +566,18 @@ Function *CodeExtractor::ExtractCodeRegion(const std::vector<BasicBlock*> &code)
   return newFunction;
 }
 
+/// ExtractBasicBlock - slurp a natural loop into a brand new function
+///
 Function* llvm::ExtractLoop(Loop *L) {
   CodeExtractor CE;
   return CE.ExtractCodeRegion(L->getBlocks());
 }
 
+/// ExtractBasicBlock - slurp a basic block into a brand new function
+///
+Function* llvm::ExtractBasicBlock(BasicBlock *BB) {
+  CodeExtractor CE;
+  std::vector<BasicBlock*> Blocks;
+  Blocks.push_back(BB);
+  return CE.ExtractCodeRegion(Blocks);  
+}