From 8d89e7bdbcea38fe2ab3c85d91359712cd45714b Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 9 May 2006 04:13:41 +0000
Subject: Patch to make some xforms preserve each other.  Patch contributed by
 Domagoj Babic!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28181 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Utils/UnifyFunctionExitNodes.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib/Transforms/Utils/UnifyFunctionExitNodes.cpp')

diff --git a/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp b/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
index 0c1eda7c0c..d3c7b32895 100644
--- a/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
+++ b/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
@@ -32,6 +32,10 @@ Pass *llvm::createUnifyFunctionExitNodesPass() {
 void UnifyFunctionExitNodes::getAnalysisUsage(AnalysisUsage &AU) const{
   // We preserve the non-critical-edgeness property
   AU.addPreservedID(BreakCriticalEdgesID);
+  // This is a cluster of orthogonal Transforms
+  AU.addPreservedID(PromoteMemoryToRegisterID);
+  AU.addPreservedID(LowerSelectID);
+  AU.addPreservedID(LowerSwitchID);
 }
 
 // UnifyAllExitNodes - Unify all exit nodes of the CFG by creating a new
-- 
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