Remove this file as well as it is no longer needed nor it compiles

[oota-llvm.git] / lib / Support / Statistic.cpp

diff --git a/lib/Support/Statistic.cpp b/lib/Support/Statistic.cpp
index a6b2dbdef6abd6bbf36b1c89f02aa4b7d6bb80f4..7fa7547fee33368098a1095e62d6344b1e9b7570 100644 (file)
--- a/lib/Support/Statistic.cpp
+++ b/lib/Support/Statistic.cpp
@@ -1,4 +1,11 @@
-//===-- StatisticReporter.cpp - Easy way to expose stats information -------==//
+//===-- Statistic.cpp - Easy way to expose stats information --------------===//
+// 
+//                     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 'Statistic' class, which is designed to be an easy
 // way to expose various success metrics from passes.  These statistics are
@@ -14,11 +21,17 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "Support/StatisticReporter.h"
+#include "Support/Statistic.h"
 #include "Support/CommandLine.h"
+#include <sstream>
 #include <iostream>
+#include <algorithm>
+using namespace llvm;
+
+// GetLibSupportInfoOutputFile - Return a file stream to print our output on...
+namespace llvm { extern std::ostream *GetLibSupportInfoOutputFile(); }
 
-bool DebugFlag;  // DebugFlag - Exported boolean set by the -debug option
+unsigned StatisticBase::NumStats = 0;
 
 // -stats - Command line option to cause transformations to emit stats about
 // what they did.
@@ -26,17 +39,69 @@ bool DebugFlag;  // DebugFlag - Exported boolean set by the -debug option
 static cl::opt<bool>
 Enabled("stats", cl::desc("Enable statistics output from program"));
 
-// -debug - Command line option to enable the DEBUG statements in the passes.
-static cl::opt<bool, true>
-Debug("debug", cl::desc("Enable debug output"), cl::Hidden,
-      cl::location(DebugFlag));
+struct StatRecord {
+  std::string Value;
+  const char *Name, *Desc;
+
+  StatRecord(const std::string &V, const char *N, const char *D)
+    : Value(V), Name(N), Desc(D) {}
+
+  bool operator<(const StatRecord &SR) const {
+    return std::strcmp(Name, SR.Name) < 0;
+  }
+
+  void print(unsigned ValFieldSize, unsigned NameFieldSize,
+             std::ostream &OS) {
+    OS << std::string(ValFieldSize-Value.length(), ' ')
+       << Value << " " << Name
+       << std::string(NameFieldSize-std::strlen(Name), ' ')
+       << " - " << Desc << "\n";
+  }
+};
+
+static std::vector<StatRecord> *AccumStats = 0;
 
 // Print information when destroyed, iff command line option is specified
 void StatisticBase::destroy() const {
   if (Enabled && hasSomeData()) {
-    std::cerr.width(7);
-    printValue(std::cerr);
-    std::cerr.width(0);
-    std::cerr << "\t" << Name << "\n";
+    if (AccumStats == 0)
+      AccumStats = new std::vector<StatRecord>();
+
+    std::ostringstream Out;
+    printValue(Out);
+    AccumStats->push_back(StatRecord(Out.str(), Name, Desc));
+  }
+
+  if (--NumStats == 0 && AccumStats) {
+    std::ostream *OutStream = GetLibSupportInfoOutputFile();
+
+    // Figure out how long the biggest Value and Name fields are...
+    unsigned MaxNameLen = 0, MaxValLen = 0;
+    for (unsigned i = 0, e = AccumStats->size(); i != e; ++i) {
+      MaxValLen = std::max(MaxValLen, 
+                           (unsigned)(*AccumStats)[i].Value.length());
+      MaxNameLen = std::max(MaxNameLen, 
+                            (unsigned)std::strlen((*AccumStats)[i].Name));
+    }
+
+    // Sort the fields...
+    std::stable_sort(AccumStats->begin(), AccumStats->end());
+
+    // Print out the statistics header...
+    *OutStream << "===" << std::string(73, '-') << "===\n"
+               << "                          ... Statistics Collected ...\n"
+               << "===" << std::string(73, '-') << "===\n\n";
+
+    // Print all of the statistics accumulated...
+    for (unsigned i = 0, e = AccumStats->size(); i != e; ++i)
+      (*AccumStats)[i].print(MaxValLen, MaxNameLen, *OutStream);
+
+    *OutStream << std::endl;  // Flush the output stream...
+
+    // Free all accumulated statistics...
+    delete AccumStats;
+    AccumStats = 0;
+    if (OutStream != &std::cerr && OutStream != &std::cout)
+      delete OutStream;   // Close the file...
   }
 }