#include "llvm/Module.h"
#include "llvm/Assembly/AsmAnnotationWriter.h"
#include "llvm/Analysis/ProfileInfoLoader.h"
-#include "llvm/Bytecode/Reader.h"
+#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/MemoryBuffer.h"
#include "llvm/System/Signals.h"
+#include <algorithm>
#include <iostream>
#include <iomanip>
#include <map>
#include <set>
using namespace llvm;
-using namespace std;
namespace {
- cl::opt<string>
- BytecodeFile(cl::Positional, cl::desc("<program bytecode file>"),
- cl::Required);
+ cl::opt<std::string>
+ BitcodeFile(cl::Positional, cl::desc("<program bitcode file>"),
+ cl::Required);
- cl::opt<string>
+ cl::opt<std::string>
ProfileDataFile(cl::Positional, cl::desc("<llvmprof.out file>"),
cl::Optional, cl::init("llvmprof.out"));
// PairSecondSort - A sorting predicate to sort by the second element of a pair.
template<class T>
struct PairSecondSortReverse
- : public binary_function<pair<T, unsigned>,
- pair<T, unsigned>, bool> {
- bool operator()(const pair<T, unsigned> &LHS,
- const pair<T, unsigned> &RHS) const {
+ : public std::binary_function<std::pair<T, unsigned>,
+ std::pair<T, unsigned>, bool> {
+ bool operator()(const std::pair<T, unsigned> &LHS,
+ const std::pair<T, unsigned> &RHS) const {
return LHS.second > RHS.second;
}
};
namespace {
class ProfileAnnotator : public AssemblyAnnotationWriter {
- map<const Function *, unsigned> &FuncFreqs;
- map<const BasicBlock*, unsigned> &BlockFreqs;
- map<ProfileInfoLoader::Edge, unsigned> &EdgeFreqs;
+ std::map<const Function *, unsigned> &FuncFreqs;
+ std::map<const BasicBlock*, unsigned> &BlockFreqs;
+ std::map<ProfileInfoLoader::Edge, unsigned> &EdgeFreqs;
public:
- ProfileAnnotator(map<const Function *, unsigned> &FF,
- map<const BasicBlock*, unsigned> &BF,
- map<ProfileInfoLoader::Edge, unsigned> &EF)
+ ProfileAnnotator(std::map<const Function *, unsigned> &FF,
+ std::map<const BasicBlock*, unsigned> &BF,
+ std::map<ProfileInfoLoader::Edge, unsigned> &EF)
: FuncFreqs(FF), BlockFreqs(BF), EdgeFreqs(EF) {}
- virtual void emitFunctionAnnot(const Function *F, ostream &OS) {
+ virtual void emitFunctionAnnot(const Function *F, std::ostream &OS) {
OS << ";;; %" << F->getName() << " called " << FuncFreqs[F]
<< " times.\n;;;\n";
}
virtual void emitBasicBlockStartAnnot(const BasicBlock *BB,
- ostream &OS) {
+ std::ostream &OS) {
if (BlockFreqs.empty()) return;
if (unsigned Count = BlockFreqs[BB])
OS << "\t;;; Basic block executed " << Count << " times.\n";
OS << "\t;;; Never executed!\n";
}
- virtual void emitBasicBlockEndAnnot(const BasicBlock *BB, ostream &OS){
+ virtual void emitBasicBlockEndAnnot(const BasicBlock *BB, std::ostream &OS){
if (EdgeFreqs.empty()) return;
// Figure out how many times each successor executed.
- vector<pair<const BasicBlock*, unsigned> > SuccCounts;
+ std::vector<std::pair<const BasicBlock*, unsigned> > SuccCounts;
const TerminatorInst *TI = BB->getTerminator();
- map<ProfileInfoLoader::Edge, unsigned>::iterator I =
- EdgeFreqs.lower_bound(make_pair(const_cast<BasicBlock*>(BB), 0U));
+ std::map<ProfileInfoLoader::Edge, unsigned>::iterator I =
+ EdgeFreqs.lower_bound(std::make_pair(const_cast<BasicBlock*>(BB), 0U));
for (; I != EdgeFreqs.end() && I->first.first == BB; ++I)
if (I->second)
- SuccCounts.push_back(make_pair(TI->getSuccessor(I->first.second),
+ SuccCounts.push_back(std::make_pair(TI->getSuccessor(I->first.second),
I->second));
if (!SuccCounts.empty()) {
OS << "\t;;; Out-edge counts:";
int main(int argc, char **argv) {
+ llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
try {
- cl::ParseCommandLineOptions(argc, argv, " llvm profile dump decoder\n");
+ cl::ParseCommandLineOptions(argc, argv, "llvm profile dump decoder\n");
sys::PrintStackTraceOnErrorSignal();
- // Read in the bytecode file...
- string ErrorMessage;
- Module *M = ParseBytecodeFile(BytecodeFile, &ErrorMessage);
+ // Read in the bitcode file...
+ std::string ErrorMessage;
+ Module *M = 0;
+ if (MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(BitcodeFile,
+ &ErrorMessage)) {
+ M = ParseBitcodeFile(Buffer, &ErrorMessage);
+ delete Buffer;
+ }
if (M == 0) {
- cerr << argv[0] << ": " << BytecodeFile << ": " << ErrorMessage << "\n";
+ std::cerr << argv[0] << ": " << BitcodeFile << ": "
+ << ErrorMessage << "\n";
return 1;
}
// Read the profiling information
ProfileInfoLoader PI(argv[0], ProfileDataFile, *M);
- map<const Function *, unsigned> FuncFreqs;
- map<const BasicBlock*, unsigned> BlockFreqs;
- map<ProfileInfoLoader::Edge, unsigned> EdgeFreqs;
+ std::map<const Function *, unsigned> FuncFreqs;
+ std::map<const BasicBlock*, unsigned> BlockFreqs;
+ std::map<ProfileInfoLoader::Edge, unsigned> EdgeFreqs;
// Output a report. Eventually, there will be multiple reports selectable on
// the command line, for now, just keep things simple.
// Emit the most frequent function table...
- vector<pair<Function*, unsigned> > FunctionCounts;
+ std::vector<std::pair<Function*, unsigned> > FunctionCounts;
PI.getFunctionCounts(FunctionCounts);
FuncFreqs.insert(FunctionCounts.begin(), FunctionCounts.end());
sort(FunctionCounts.begin(), FunctionCounts.end(),
PairSecondSortReverse<Function*>());
- unsigned long long TotalExecutions = 0;
+ uint64_t TotalExecutions = 0;
for (unsigned i = 0, e = FunctionCounts.size(); i != e; ++i)
TotalExecutions += FunctionCounts[i].second;
- cout << "===" << string(73, '-') << "===\n"
+ std::cout << "===" << std::string(73, '-') << "===\n"
<< "LLVM profiling output for execution";
- if (PI.getNumExecutions() != 1) cout << "s";
- cout << ":\n";
+ if (PI.getNumExecutions() != 1) std::cout << "s";
+ std::cout << ":\n";
for (unsigned i = 0, e = PI.getNumExecutions(); i != e; ++i) {
- cout << " ";
- if (e != 1) cout << i+1 << ". ";
- cout << PI.getExecution(i) << "\n";
+ std::cout << " ";
+ if (e != 1) std::cout << i+1 << ". ";
+ std::cout << PI.getExecution(i) << "\n";
}
- cout << "\n===" << string(73, '-') << "===\n";
- cout << "Function execution frequencies:\n\n";
+ std::cout << "\n===" << std::string(73, '-') << "===\n";
+ std::cout << "Function execution frequencies:\n\n";
// Print out the function frequencies...
- cout << " ## Frequency\n";
+ std::cout << " ## Frequency\n";
for (unsigned i = 0, e = FunctionCounts.size(); i != e; ++i) {
if (FunctionCounts[i].second == 0) {
- cout << "\n NOTE: " << e-i << " function" <<
+ std::cout << "\n NOTE: " << e-i << " function" <<
(e-i-1 ? "s were" : " was") << " never executed!\n";
break;
}
- cout << setw(3) << i+1 << ". "
- << setw(5) << FunctionCounts[i].second << "/"
+ std::cout << std::setw(3) << i+1 << ". "
+ << std::setw(5) << FunctionCounts[i].second << "/"
<< TotalExecutions << " "
<< FunctionCounts[i].first->getName().c_str() << "\n";
}
- set<Function*> FunctionsToPrint;
+ std::set<Function*> FunctionsToPrint;
// If we have block count information, print out the LLVM module with
// frequency annotations.
if (PI.hasAccurateBlockCounts()) {
- vector<pair<BasicBlock*, unsigned> > Counts;
+ std::vector<std::pair<BasicBlock*, unsigned> > Counts;
PI.getBlockCounts(Counts);
TotalExecutions = 0;
sort(Counts.begin(), Counts.end(),
PairSecondSortReverse<BasicBlock*>());
- cout << "\n===" << string(73, '-') << "===\n";
- cout << "Top 20 most frequently executed basic blocks:\n\n";
+ std::cout << "\n===" << std::string(73, '-') << "===\n";
+ std::cout << "Top 20 most frequently executed basic blocks:\n\n";
// Print out the function frequencies...
- cout <<" ## %% \tFrequency\n";
+ std::cout <<" ## %% \tFrequency\n";
unsigned BlocksToPrint = Counts.size();
if (BlocksToPrint > 20) BlocksToPrint = 20;
for (unsigned i = 0; i != BlocksToPrint; ++i) {
if (Counts[i].second == 0) break;
Function *F = Counts[i].first->getParent();
- cout << setw(3) << i+1 << ". "
- << setw(5) << setprecision(2)
+ std::cout << std::setw(3) << i+1 << ". "
+ << std::setw(5) << std::setprecision(2)
<< Counts[i].second/(double)TotalExecutions*100 << "% "
- << setw(5) << Counts[i].second << "/"
+ << std::setw(5) << Counts[i].second << "/"
<< TotalExecutions << "\t"
<< F->getName().c_str() << "() - "
<< Counts[i].first->getName().c_str() << "\n";
}
if (PI.hasAccurateEdgeCounts()) {
- vector<pair<ProfileInfoLoader::Edge, unsigned> > Counts;
+ std::vector<std::pair<ProfileInfoLoader::Edge, unsigned> > Counts;
PI.getEdgeCounts(Counts);
EdgeFreqs.insert(Counts.begin(), Counts.end());
}
if (PrintAnnotatedLLVM || PrintAllCode) {
- cout << "\n===" << string(73, '-') << "===\n";
- cout << "Annotated LLVM code for the module:\n\n";
+ std::cout << "\n===" << std::string(73, '-') << "===\n";
+ std::cout << "Annotated LLVM code for the module:\n\n";
ProfileAnnotator PA(FuncFreqs, BlockFreqs, EdgeFreqs);
if (FunctionsToPrint.empty() || PrintAllCode)
- M->print(cout, &PA);
+ M->print(std::cout, &PA);
else
// Print just a subset of the functions...
- for (set<Function*>::iterator I = FunctionsToPrint.begin(),
+ for (std::set<Function*>::iterator I = FunctionsToPrint.begin(),
E = FunctionsToPrint.end(); I != E; ++I)
- (*I)->print(cout, &PA);
+ (*I)->print(std::cout, &PA);
}
return 0;
- } catch (const string& msg) {
- cerr << argv[0] << ": " << msg << "\n";
+ } catch (const std::string& msg) {
+ std::cerr << argv[0] << ": " << msg << "\n";
} catch (...) {
- cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
+ std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
}
return 1;
}