Move TimingInfo into PassManagers.h so that other libs can use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33626 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 49 insertions, 0 deletions

diff --git a/include/llvm/PassManagers.h b/include/llvm/PassManagers.h
index c4b3eed7f8..e4ae30a15c 100644
--- a/include/llvm/PassManagers.h
+++ b/include/llvm/PassManagers.h
@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/PassManager.h"
+#include "llvm/Support/Timer.h"
 
 using namespace llvm;
 class llvm::PMDataManager;
@@ -323,5 +324,53 @@ public:
   }
 };
 
+//===----------------------------------------------------------------------===//
+// TimingInfo Class - This class is used to calculate information about the
+// amount of time each pass takes to execute.  This only happens when
+// -time-passes is enabled on the command line.
+//
+
+class TimingInfo {
+  std::map<Pass*, Timer> TimingData;
+  TimerGroup TG;
+
+public:
+  // Use 'create' member to get this.
+  TimingInfo() : TG("... Pass execution timing report ...") {}
+  
+  // TimingDtor - Print out information about timing information
+  ~TimingInfo() {
+    // Delete all of the timers...
+    TimingData.clear();
+    // TimerGroup is deleted next, printing the report.
+  }
+
+  // createTheTimeInfo - This method either initializes the TheTimeInfo pointer
+  // to a non null value (if the -time-passes option is enabled) or it leaves it
+  // null.  It may be called multiple times.
+  static void createTheTimeInfo();
+
+  void passStarted(Pass *P) {
+
+    if (dynamic_cast<PMDataManager *>(P)) 
+      return;
+
+    std::map<Pass*, Timer>::iterator I = TimingData.find(P);
+    if (I == TimingData.end())
+      I=TimingData.insert(std::make_pair(P, Timer(P->getPassName(), TG))).first;
+    I->second.startTimer();
+  }
+  void passEnded(Pass *P) {
+
+    if (dynamic_cast<PMDataManager *>(P)) 
+      return;
+
+    std::map<Pass*, Timer>::iterator I = TimingData.find(P);
+    assert (I != TimingData.end() && "passStarted/passEnded not nested right!");
+    I->second.stopTimer();
+  }
+};
+
+extern TimingInfo *getTheTimeInfo();
 }