From: Andrew Lenharth <andrewl@lenharth.org>
Date: Thu, 10 Nov 2005 17:35:34 +0000 (+0000)
Subject: this works with backedges to the existing entry block alot better
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=99b8e26b84033b5932cfe2a1d1542ea33cb21a8a;p=oota-llvm.git

this works with backedges to the existing entry block alot better


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24270 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/Reg2Mem.cpp b/lib/Transforms/Scalar/Reg2Mem.cpp
index be60b5a3588..a43da7a60ac 100644
--- a/lib/Transforms/Scalar/Reg2Mem.cpp
+++ b/lib/Transforms/Scalar/Reg2Mem.cpp
@@ -46,8 +46,9 @@ namespace {
     virtual bool runOnFunction(Function &F) {
       if (!F.isExternal()) {
         //give us a clean block
-        BasicBlock& bbhead = F.getEntryBlock();
-        bbhead.splitBasicBlock(bbhead.begin());
+	BasicBlock* bbold = &F.getEntryBlock();
+	BasicBlock* bbnew = new BasicBlock("allocablock", &F, &F.getEntryBlock());
+	new BranchInst(bbold, bbnew);
 
         //find the instructions
         std::list<Instruction*> worklist;