//
// 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.
//
//===----------------------------------------------------------------------===//
//
#include "llvm/Function.h"
#include "llvm/Pass.h"
#include "llvm/Support/CFG.h"
-#include "llvm/Support/Compiler.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Transforms/Scalar.h"
#include <set>
STATISTIC(NumMoved, "Number of basic blocks moved");
namespace {
- struct VISIBILITY_HIDDEN BlockPlacement : public FunctionPass {
- static char ID; // Pass identifcation, replacement for typeid
- BlockPlacement() : FunctionPass((intptr_t)&ID) {}
+ struct BlockPlacement : public FunctionPass {
+ static char ID; // Pass identification, replacement for typeid
+ BlockPlacement() : FunctionPass(&ID) {}
virtual bool runOnFunction(Function &F);
/// successors.
void PlaceBlocks(BasicBlock *BB);
};
-
- char BlockPlacement::ID = 0;
- RegisterPass<BlockPlacement> X("block-placement",
- "Profile Guided Basic Block Placement");
}
+char BlockPlacement::ID = 0;
+static RegisterPass<BlockPlacement>
+X("block-placement", "Profile Guided Basic Block Placement");
+
FunctionPass *llvm::createBlockPlacementPass() { return new BlockPlacement(); }
bool BlockPlacement::runOnFunction(Function &F) {
/*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)) {