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authordim <dim@FreeBSD.org>2010-10-11 17:22:16 +0000
committerdim <dim@FreeBSD.org>2010-10-11 17:22:16 +0000
commit1fc65a65fe54635d0e564559ba5a7b8a8a42d4d6 (patch)
treede75a464c5dac7eceb2dbbad8b4d4e1479d79e08 /contrib/llvm/tools/llvm-prof/llvm-prof.cpp
parentf4f7191cd223adebacee3fad260ed60935be9cb9 (diff)
downloadFreeBSD-src-1fc65a65fe54635d0e564559ba5a7b8a8a42d4d6.zip
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Remove more unneeded files and directories from contrib/llvm. This
still allows us to build tblgen and clang, and further reduces the footprint in the tree. Approved by: rpaulo (mentor)
Diffstat (limited to 'contrib/llvm/tools/llvm-prof/llvm-prof.cpp')
-rw-r--r--contrib/llvm/tools/llvm-prof/llvm-prof.cpp291
1 files changed, 0 insertions, 291 deletions
diff --git a/contrib/llvm/tools/llvm-prof/llvm-prof.cpp b/contrib/llvm/tools/llvm-prof/llvm-prof.cpp
deleted file mode 100644
index 1c63d97..0000000
--- a/contrib/llvm/tools/llvm-prof/llvm-prof.cpp
+++ /dev/null
@@ -1,291 +0,0 @@
-//===- llvm-prof.cpp - Read in and process llvmprof.out data files --------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This tools is meant for use with the various LLVM profiling instrumentation
-// passes. It reads in the data file produced by executing an instrumented
-// program, and outputs a nice report.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/InstrTypes.h"
-#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
-#include "llvm/PassManager.h"
-#include "llvm/Assembly/AssemblyAnnotationWriter.h"
-#include "llvm/Analysis/ProfileInfo.h"
-#include "llvm/Analysis/ProfileInfoLoader.h"
-#include "llvm/Analysis/Passes.h"
-#include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/Format.h"
-#include "llvm/System/Signals.h"
-#include <algorithm>
-#include <iomanip>
-#include <map>
-#include <set>
-
-using namespace llvm;
-
-namespace {
- cl::opt<std::string>
- BitcodeFile(cl::Positional, cl::desc("<program bitcode file>"),
- cl::Required);
-
- cl::opt<std::string>
- ProfileDataFile(cl::Positional, cl::desc("<llvmprof.out file>"),
- cl::Optional, cl::init("llvmprof.out"));
-
- cl::opt<bool>
- PrintAnnotatedLLVM("annotated-llvm",
- cl::desc("Print LLVM code with frequency annotations"));
- cl::alias PrintAnnotated2("A", cl::desc("Alias for --annotated-llvm"),
- cl::aliasopt(PrintAnnotatedLLVM));
- cl::opt<bool>
- PrintAllCode("print-all-code",
- cl::desc("Print annotated code for the entire program"));
-}
-
-// PairSecondSort - A sorting predicate to sort by the second element of a pair.
-template<class T>
-struct PairSecondSortReverse
- : public std::binary_function<std::pair<T, double>,
- std::pair<T, double>, bool> {
- bool operator()(const std::pair<T, double> &LHS,
- const std::pair<T, double> &RHS) const {
- return LHS.second > RHS.second;
- }
-};
-
-static double ignoreMissing(double w) {
- if (w == ProfileInfo::MissingValue) return 0;
- return w;
-}
-
-namespace {
- class ProfileAnnotator : public AssemblyAnnotationWriter {
- ProfileInfo &PI;
- public:
- ProfileAnnotator(ProfileInfo &pi) : PI(pi) {}
-
- virtual void emitFunctionAnnot(const Function *F,
- formatted_raw_ostream &OS) {
- double w = PI.getExecutionCount(F);
- if (w != ProfileInfo::MissingValue) {
- OS << ";;; %" << F->getName() << " called "<<(unsigned)w
- <<" times.\n;;;\n";
- }
- }
- virtual void emitBasicBlockStartAnnot(const BasicBlock *BB,
- formatted_raw_ostream &OS) {
- double w = PI.getExecutionCount(BB);
- if (w != ProfileInfo::MissingValue) {
- if (w != 0) {
- OS << "\t;;; Basic block executed " << (unsigned)w << " times.\n";
- } else {
- OS << "\t;;; Never executed!\n";
- }
- }
- }
-
- virtual void emitBasicBlockEndAnnot(const BasicBlock *BB,
- formatted_raw_ostream &OS) {
- // Figure out how many times each successor executed.
- std::vector<std::pair<ProfileInfo::Edge, double> > SuccCounts;
-
- const TerminatorInst *TI = BB->getTerminator();
- for (unsigned s = 0, e = TI->getNumSuccessors(); s != e; ++s) {
- BasicBlock* Succ = TI->getSuccessor(s);
- double w = ignoreMissing(PI.getEdgeWeight(std::make_pair(BB, Succ)));
- if (w != 0)
- SuccCounts.push_back(std::make_pair(std::make_pair(BB, Succ), w));
- }
- if (!SuccCounts.empty()) {
- OS << "\t;;; Out-edge counts:";
- for (unsigned i = 0, e = SuccCounts.size(); i != e; ++i)
- OS << " [" << (SuccCounts[i]).second << " -> "
- << (SuccCounts[i]).first.second->getName() << "]";
- OS << "\n";
- }
- }
- };
-}
-
-namespace {
- /// ProfileInfoPrinterPass - Helper pass to dump the profile information for
- /// a module.
- //
- // FIXME: This should move elsewhere.
- class ProfileInfoPrinterPass : public ModulePass {
- ProfileInfoLoader &PIL;
- public:
- static char ID; // Class identification, replacement for typeinfo.
- explicit ProfileInfoPrinterPass(ProfileInfoLoader &_PIL)
- : ModulePass(ID), PIL(_PIL) {}
-
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
- AU.addRequired<ProfileInfo>();
- }
-
- bool runOnModule(Module &M);
- };
-}
-
-char ProfileInfoPrinterPass::ID = 0;
-
-bool ProfileInfoPrinterPass::runOnModule(Module &M) {
- ProfileInfo &PI = getAnalysis<ProfileInfo>();
- std::map<const Function *, unsigned> FuncFreqs;
- std::map<const BasicBlock*, unsigned> BlockFreqs;
- std::map<ProfileInfo::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...
- std::vector<std::pair<Function*, double> > FunctionCounts;
- std::vector<std::pair<BasicBlock*, double> > Counts;
- for (Module::iterator FI = M.begin(), FE = M.end(); FI != FE; ++FI) {
- if (FI->isDeclaration()) continue;
- double w = ignoreMissing(PI.getExecutionCount(FI));
- FunctionCounts.push_back(std::make_pair(FI, w));
- for (Function::iterator BB = FI->begin(), BBE = FI->end();
- BB != BBE; ++BB) {
- double w = ignoreMissing(PI.getExecutionCount(BB));
- Counts.push_back(std::make_pair(BB, w));
- }
- }
-
- // Sort by the frequency, backwards.
- sort(FunctionCounts.begin(), FunctionCounts.end(),
- PairSecondSortReverse<Function*>());
-
- double TotalExecutions = 0;
- for (unsigned i = 0, e = FunctionCounts.size(); i != e; ++i)
- TotalExecutions += FunctionCounts[i].second;
-
- outs() << "===" << std::string(73, '-') << "===\n"
- << "LLVM profiling output for execution";
- if (PIL.getNumExecutions() != 1) outs() << "s";
- outs() << ":\n";
-
- for (unsigned i = 0, e = PIL.getNumExecutions(); i != e; ++i) {
- outs() << " ";
- if (e != 1) outs() << i+1 << ". ";
- outs() << PIL.getExecution(i) << "\n";
- }
-
- outs() << "\n===" << std::string(73, '-') << "===\n";
- outs() << "Function execution frequencies:\n\n";
-
- // Print out the function frequencies...
- outs() << " ## Frequency\n";
- for (unsigned i = 0, e = FunctionCounts.size(); i != e; ++i) {
- if (FunctionCounts[i].second == 0) {
- outs() << "\n NOTE: " << e-i << " function"
- << (e-i-1 ? "s were" : " was") << " never executed!\n";
- break;
- }
-
- outs() << format("%3d", i+1) << ". "
- << format("%5.2g", FunctionCounts[i].second) << "/"
- << format("%g", TotalExecutions) << " "
- << FunctionCounts[i].first->getNameStr() << "\n";
- }
-
- std::set<Function*> FunctionsToPrint;
-
- TotalExecutions = 0;
- for (unsigned i = 0, e = Counts.size(); i != e; ++i)
- TotalExecutions += Counts[i].second;
-
- // Sort by the frequency, backwards.
- sort(Counts.begin(), Counts.end(),
- PairSecondSortReverse<BasicBlock*>());
-
- outs() << "\n===" << std::string(73, '-') << "===\n";
- outs() << "Top 20 most frequently executed basic blocks:\n\n";
-
- // Print out the function frequencies...
- outs() <<" ## %% \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();
- outs() << format("%3d", i+1) << ". "
- << format("%5g", Counts[i].second/(double)TotalExecutions*100) << "% "
- << format("%5.0f", Counts[i].second) << "/"
- << format("%g", TotalExecutions) << "\t"
- << F->getNameStr() << "() - "
- << Counts[i].first->getNameStr() << "\n";
- FunctionsToPrint.insert(F);
- }
-
- if (PrintAnnotatedLLVM || PrintAllCode) {
- outs() << "\n===" << std::string(73, '-') << "===\n";
- outs() << "Annotated LLVM code for the module:\n\n";
-
- ProfileAnnotator PA(PI);
-
- if (FunctionsToPrint.empty() || PrintAllCode)
- M.print(outs(), &PA);
- else
- // Print just a subset of the functions.
- for (std::set<Function*>::iterator I = FunctionsToPrint.begin(),
- E = FunctionsToPrint.end(); I != E; ++I)
- (*I)->print(outs(), &PA);
- }
-
- return false;
-}
-
-int main(int argc, char **argv) {
- // Print a stack trace if we signal out.
- sys::PrintStackTraceOnErrorSignal();
- PrettyStackTraceProgram X(argc, argv);
-
- LLVMContext &Context = getGlobalContext();
- llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
-
- cl::ParseCommandLineOptions(argc, argv, "llvm profile dump decoder\n");
-
- // Read in the bitcode file...
- std::string ErrorMessage;
- Module *M = 0;
- if (MemoryBuffer *Buffer = MemoryBuffer::getFileOrSTDIN(BitcodeFile,
- &ErrorMessage)) {
- M = ParseBitcodeFile(Buffer, Context, &ErrorMessage);
- delete Buffer;
- }
- if (M == 0) {
- errs() << argv[0] << ": " << BitcodeFile << ": "
- << ErrorMessage << "\n";
- return 1;
- }
-
- // Read the profiling information. This is redundant since we load it again
- // using the standard profile info provider pass, but for now this gives us
- // access to additional information not exposed via the ProfileInfo
- // interface.
- ProfileInfoLoader PIL(argv[0], ProfileDataFile, *M);
-
- // Run the printer pass.
- PassManager PassMgr;
- PassMgr.add(createProfileLoaderPass(ProfileDataFile));
- PassMgr.add(new ProfileInfoPrinterPass(PIL));
- PassMgr.run(*M);
-
- return 0;
-}
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