X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FAnalysis%2FRegionPass.cpp;h=5e1cdd48a78ee65e5af3bf757707cf5dd959b0dd;hb=00051c954c0742b9ba856f7372b9abab8309f660;hp=4986fab5ff6b5bb26f4937858f1fe6865b5e41da;hpb=07f099b867d60520d5fb391afd3d962638276cf4;p=oota-llvm.git

diff --git a/lib/Analysis/RegionPass.cpp b/lib/Analysis/RegionPass.cpp
index 4986fab5ff6..5e1cdd48a78 100644
--- a/lib/Analysis/RegionPass.cpp
+++ b/lib/Analysis/RegionPass.cpp
@@ -15,11 +15,12 @@
 //===----------------------------------------------------------------------===//
 #include "llvm/Analysis/RegionPass.h"
 #include "llvm/Analysis/RegionIterator.h"
+#include "llvm/Support/Debug.h"
 #include "llvm/Support/Timer.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
 
 #define DEBUG_TYPE "regionpassmgr"
-#include "llvm/Support/Debug.h"
-using namespace llvm;
 
 //===----------------------------------------------------------------------===//
 // RGPassManager
@@ -44,14 +45,14 @@ static void addRegionIntoQueue(Region &R, std::deque<Region *> &RQ) {
 
 /// Pass Manager itself does not invalidate any analysis info.
 void RGPassManager::getAnalysisUsage(AnalysisUsage &Info) const {
-  Info.addRequired<RegionInfo>();
+  Info.addRequired<RegionInfoPass>();
   Info.setPreservesAll();
 }
 
 /// run - Execute all of the passes scheduled for execution.  Keep track of
 /// whether any of the passes modifies the function, and if so, return true.
 bool RGPassManager::runOnFunction(Function &F) {
-  RI = &getAnalysis<RegionInfo>();
+  RI = &getAnalysis<RegionInfoPass>().getRegionInfo();
   bool Changed = false;
 
   // Collect inherited analysis from Module level pass manager.
@@ -83,9 +84,11 @@ bool RGPassManager::runOnFunction(Function &F) {
     for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
       RegionPass *P = (RegionPass*)getContainedPass(Index);
 
-      dumpPassInfo(P, EXECUTION_MSG, ON_REGION_MSG,
-                   CurrentRegion->getNameStr());
-      dumpRequiredSet(P);
+      if (isPassDebuggingExecutionsOrMore()) {
+        dumpPassInfo(P, EXECUTION_MSG, ON_REGION_MSG,
+                     CurrentRegion->getNameStr());
+        dumpRequiredSet(P);
+      }
 
       initializeAnalysisImpl(P);
 
@@ -96,11 +99,13 @@ bool RGPassManager::runOnFunction(Function &F) {
         Changed |= P->runOnRegion(CurrentRegion, *this);
       }
 
-      if (Changed)
-        dumpPassInfo(P, MODIFICATION_MSG, ON_REGION_MSG,
-                     skipThisRegion ? "<deleted>" :
-                                    CurrentRegion->getNameStr());
-      dumpPreservedSet(P);
+      if (isPassDebuggingExecutionsOrMore()) {
+        if (Changed)
+          dumpPassInfo(P, MODIFICATION_MSG, ON_REGION_MSG,
+                       skipThisRegion ? "<deleted>" :
+                                      CurrentRegion->getNameStr());
+        dumpPreservedSet(P);
+      }
 
       if (!skipThisRegion) {
         // Manually check that this region is still healthy. This is done
@@ -120,8 +125,8 @@ bool RGPassManager::runOnFunction(Function &F) {
       removeNotPreservedAnalysis(P);
       recordAvailableAnalysis(P);
       removeDeadPasses(P,
-                       skipThisRegion ? "<deleted>" :
-                                      CurrentRegion->getNameStr(),
+                       (!isPassDebuggingExecutionsOrMore() || skipThisRegion) ?
+                       "<deleted>" :  CurrentRegion->getNameStr(),
                        ON_REGION_MSG);
 
       if (skipThisRegion)
@@ -194,8 +199,12 @@ public:
 
   bool runOnRegion(Region *R, RGPassManager &RGM) override {
     Out << Banner;
-    for (const auto &BB : R->blocks())
-      BB->print(Out);
+    for (const auto *BB : R->blocks()) {
+      if (BB)
+        BB->print(Out);
+      else
+        Out << "Printing <null> Block";
+    }
 
     return false;
   }