From: Chris Lattner <sabre@nondot.org>
Date: Thu, 26 Sep 2002 16:17:33 +0000 (+0000)
Subject: Checkin new loop-preheader insertion pass.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f6b684c50510a13fd5b5823e84207f0f8ed0c92e;p=oota-llvm.git

Checkin new loop-preheader insertion pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3943 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Transforms/Scalar.h b/include/llvm/Transforms/Scalar.h
index 79f10298a5b..3161d68b0a0 100644
--- a/include/llvm/Transforms/Scalar.h
+++ b/include/llvm/Transforms/Scalar.h
@@ -188,6 +188,19 @@ Pass *createCFGSimplificationPass();
 Pass *createBreakCriticalEdgesPass();
 extern const PassInfo *BreakCriticalEdgesID;
 
+
+//===----------------------------------------------------------------------===//
+//
+// LoopPreheaders pass - Insert Pre-header blocks into the CFG for every
+// function in the module.  This pass updates dominator information, loop
+// information, and does not add critical edges to the CFG.
+//
+//   AU.addRequiredID(LoopPreheadersID);
+//
+Pass *createLoopPreheaderInsertionPass();
+extern const PassInfo *LoopPreheadersID;
+
+
 //===----------------------------------------------------------------------===//
 // These two passes convert malloc and free instructions to and from %malloc &
 // %free function calls.