commit fc7fdef7d24d7629c4f76d4334b4ed51968cd7ee
author Devang Patel <dpatel@apple.com> Thu Jun 07 21:57:03 2007 +0000
committer Devang Patel <dpatel@apple.com> Thu Jun 07 21:57:03 2007 +0000
tree b7655efcc15a714465a5191ee4e5004f243c9988
parent df6355ccf8c848de00e7b84dba05f21220e73e92

Use DominatorTree instead of ETForest.
This allows faster immediate domiantor walk.

llvm-svn: 37500

llvm/lib/Transforms/Utils/Mem2Reg.cpp

diff --git a/llvm/lib/Transforms/Utils/Mem2Reg.cpp b/llvm/lib/Transforms/Utils/Mem2Reg.cpp
index 0fddda3..d67b3de 100644
--- a/llvm/lib/Transforms/Utils/Mem2Reg.cpp
+++ b/llvm/lib/Transforms/Utils/Mem2Reg.cpp
@@ -38,7 +38,7 @@
     // getAnalysisUsage - We need dominance frontiers
     //
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
-      AU.addRequired<ETForest>();
+      AU.addRequired<DominatorTree>();
       AU.addRequired<DominanceFrontier>();
       AU.setPreservesCFG();
       // This is a cluster of orthogonal Transforms
@@ -61,7 +61,7 @@
 
   bool Changed  = false;
 
-  ETForest     &ET = getAnalysis<ETForest>();
+  DominatorTree &DT = getAnalysis<DominatorTree>();
   DominanceFrontier &DF = getAnalysis<DominanceFrontier>();
 
   while (1) {
@@ -76,7 +76,7 @@
 
     if (Allocas.empty()) break;
 
-    PromoteMemToReg(Allocas, ET, DF);
+    PromoteMemToReg(Allocas, DT, DF);
     NumPromoted += Allocas.size();
     Changed = true;
   }