X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FAnalysis%2FLoopPass.cpp;h=10e3f297f9c51dd138171a0f40f7cded30f3e638;hb=a704bc9354d8b03fd98da9bd7de5ae1dc49af961;hp=718b615aa5c113ae29ddff38ee4ab11f3b9dbf7f;hpb=65bffec2c2dc87a5974930ec17931721bc485f9a;p=oota-llvm.git

diff --git a/lib/Analysis/LoopPass.cpp b/lib/Analysis/LoopPass.cpp
index 718b615aa5c..10e3f297f9c 100644
--- a/lib/Analysis/LoopPass.cpp
+++ b/lib/Analysis/LoopPass.cpp
@@ -14,8 +14,10 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Analysis/LoopPass.h"
+#include "llvm/DebugInfoProbe.h"
 #include "llvm/Assembly/PrintModulePass.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/Timer.h"
 using namespace llvm;
 
@@ -30,7 +32,6 @@ private:
 
 public:
   static char ID;
-  PrintLoopPass() : LoopPass(ID), Out(dbgs()) {}
   PrintLoopPass(const std::string &B, raw_ostream &o)
       : LoopPass(ID), Banner(B), Out(o) {}
 
@@ -52,6 +53,20 @@ public:
 char PrintLoopPass::ID = 0;
 }
 
+//===----------------------------------------------------------------------===//
+// DebugInfoProbe
+
+static DebugInfoProbeInfo *TheDebugProbe;
+static void createDebugInfoProbe() {
+  if (TheDebugProbe) return;
+      
+  // Constructed the first time this is called. This guarantees that the 
+  // object will be constructed, if -enable-debug-info-probe is set, 
+  // before static globals, thus it will be destroyed before them.
+  static ManagedStatic<DebugInfoProbeInfo> DIP;
+  TheDebugProbe = &*DIP;
+}
+
 //===----------------------------------------------------------------------===//
 // LPPassManager
 //
@@ -224,6 +239,7 @@ void LPPassManager::getAnalysisUsage(AnalysisUsage &Info) const {
 bool LPPassManager::runOnFunction(Function &F) {
   LI = &getAnalysis<LoopInfo>();
   bool Changed = false;
+  createDebugInfoProbe();
 
   // Collect inherited analysis from Module level pass manager.
   populateInheritedAnalysis(TPM->activeStack);
@@ -255,19 +271,21 @@ bool LPPassManager::runOnFunction(Function &F) {
     // Run all passes on the current Loop.
     for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {  
       LoopPass *P = getContainedPass(Index);
-
       dumpPassInfo(P, EXECUTION_MSG, ON_LOOP_MSG,
                    CurrentLoop->getHeader()->getName());
       dumpRequiredSet(P);
 
       initializeAnalysisImpl(P);
-
+      if (TheDebugProbe)
+        TheDebugProbe->initialize(P, F);
       {
         PassManagerPrettyStackEntry X(P, *CurrentLoop->getHeader());
         TimeRegion PassTimer(getPassTimer(P));
 
         Changed |= P->runOnLoop(CurrentLoop, *this);
       }
+      if (TheDebugProbe)
+        TheDebugProbe->finalize(P, F);
 
       if (Changed)
         dumpPassInfo(P, MODIFICATION_MSG, ON_LOOP_MSG,
@@ -332,7 +350,7 @@ void LPPassManager::dumpPassStructure(unsigned Offset) {
   errs().indent(Offset*2) << "Loop Pass Manager\n";
   for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
     Pass *P = getContainedPass(Index);
-    P->dumpPass(Offset + 1);
+    P->dumpPassStructure(Offset + 1);
     dumpLastUses(P, Offset+1);
   }
 }