llvm-6502/lib/Analysis/ProfileInfo.cpp

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//===- ProfileInfo.cpp - Profile Info Interface ---------------------------===//
//
// 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 implements the abstract ProfileInfo interface, and the default
// "no profile" implementation.
//
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/ProfileInfo.h"
#include "llvm/Pass.h"
using namespace llvm;
// Register the AliasAnalysis interface, providing a nice name to refer to.
namespace {
RegisterAnalysisGroup<ProfileInfo> Z("Profile Information");
}
ProfileInfo::~ProfileInfo() {}
//===----------------------------------------------------------------------===//
// NoProfile ProfileInfo implementation
//
namespace {
struct NoProfileInfo : public ImmutablePass, public ProfileInfo {
unsigned getExecutionCount(BasicBlock *BB) { return 0; }
};
// Register this pass...
RegisterOpt<NoProfileInfo>
X("no-profile", "No Profile Information");
// Declare that we implement the AliasAnalysis interface
RegisterAnalysisGroup<ProfileInfo, NoProfileInfo, true> Y;
} // End of anonymous namespace