GlobalOpt: If we have an inbounds GEP from a ConstantAggregateZero global that we...

[oota-llvm.git] / lib / Transforms / Scalar / BasicBlockPlacement.cpp

diff --git a/lib/Transforms/Scalar/BasicBlockPlacement.cpp b/lib/Transforms/Scalar/BasicBlockPlacement.cpp
index c926c561d8216891f54a3c9e76e7ae469ca95e51..cee55026562217c3565531de03b91cf1f2784e99 100644 (file)
--- a/lib/Transforms/Scalar/BasicBlockPlacement.cpp
+++ b/lib/Transforms/Scalar/BasicBlockPlacement.cpp
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -26,6 +26,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#define DEBUG_TYPE "block-placement"
 #include "llvm/Analysis/ProfileInfo.h"
 #include "llvm/Function.h"
 #include "llvm/Pass.h"
@@ -35,10 +36,15 @@
 #include <set>
 using namespace llvm;
 
-namespace {
-  Statistic<> NumMoved("block-placement", "Number of basic blocks moved");
+STATISTIC(NumMoved, "Number of basic blocks moved");
 
+namespace {
   struct BlockPlacement : public FunctionPass {
+    static char ID; // Pass identification, replacement for typeid
+    BlockPlacement() : FunctionPass(ID) {
+      initializeBlockPlacementPass(*PassRegistry::getPassRegistry());
+    }
+
     virtual bool runOnFunction(Function &F);
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
@@ -67,11 +73,15 @@ namespace {
     /// successors.
     void PlaceBlocks(BasicBlock *BB);
   };
-
-  RegisterOpt<BlockPlacement> X("block-placement",
-                                "Profile Guided Basic Block Placement");
 }
 
+char BlockPlacement::ID = 0;
+INITIALIZE_PASS_BEGIN(BlockPlacement, "block-placement",
+                "Profile Guided Basic Block Placement", false, false)
+INITIALIZE_AG_DEPENDENCY(ProfileInfo)
+INITIALIZE_PASS_END(BlockPlacement, "block-placement",
+                "Profile Guided Basic Block Placement", false, false)
+
 FunctionPass *llvm::createBlockPlacementPass() { return new BlockPlacement(); }
 
 bool BlockPlacement::runOnFunction(Function &F) {
@@ -121,13 +131,13 @@ void BlockPlacement::PlaceBlocks(BasicBlock *BB) {
       /*empty*/;
     if (SI == E) return;  // No more successors to place.
 
-    unsigned MaxExecutionCount = PI->getExecutionCount(*SI);
+    double MaxExecutionCount = PI->getExecutionCount(*SI);
     BasicBlock *MaxSuccessor = *SI;
 
     // Scan for more frequently executed successors
     for (; SI != E; ++SI)
       if (!PlacedBlocks.count(*SI)) {
-        unsigned Count = PI->getExecutionCount(*SI);
+        double Count = PI->getExecutionCount(*SI);
         if (Count > MaxExecutionCount ||
             // Prefer to not disturb the code.
             (Count == MaxExecutionCount && *SI == &*InsertPos)) {