X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FAnalysis%2FMemDerefPrinter.cpp;h=36f1424c8cf96b014d34f87b4a3656b940a4827b;hb=ef80e8aad9371185a46120fdfa848526e9d103a0;hp=5903dc567042e271957abcca93011cfe86e4e716;hpb=1aa9710c60c872690d0d77c9d451a0e82dd7baeb;p=oota-llvm.git

diff --git a/lib/Analysis/MemDerefPrinter.cpp b/lib/Analysis/MemDerefPrinter.cpp
index 5903dc56704..36f1424c8cf 100644
--- a/lib/Analysis/MemDerefPrinter.cpp
+++ b/lib/Analysis/MemDerefPrinter.cpp
@@ -22,9 +22,10 @@ using namespace llvm;
 
 namespace {
   struct MemDerefPrinter : public FunctionPass {
-    SmallVector<Value *, 4> Vec;
+    SmallVector<Value *, 4> Deref;
+    SmallPtrSet<Value *, 4> DerefAndAligned;
 
-    static char ID; // Pass identifcation, replacement for typeid
+    static char ID; // Pass identification, replacement for typeid
     MemDerefPrinter() : FunctionPass(ID) {
       initializeMemDerefPrinterPass(*PassRegistry::getPassRegistry());
     }
@@ -34,7 +35,8 @@ namespace {
     bool runOnFunction(Function &F) override;
     void print(raw_ostream &OS, const Module * = nullptr) const override;
     void releaseMemory() override {
-      Vec.clear();
+      Deref.clear();
+      DerefAndAligned.clear();
     }
   };
 }
@@ -51,11 +53,13 @@ FunctionPass *llvm::createMemDerefPrinter() {
 
 bool MemDerefPrinter::runOnFunction(Function &F) {
   const DataLayout &DL = F.getParent()->getDataLayout();
-  for (auto &I: inst_range(F)) {
+  for (auto &I: instructions(F)) {
     if (LoadInst *LI = dyn_cast<LoadInst>(&I)) {
       Value *PO = LI->getPointerOperand();
       if (isDereferenceablePointer(PO, DL))
-        Vec.push_back(PO);
+        Deref.push_back(PO);
+      if (isDereferenceableAndAlignedPointer(PO, LI->getAlignment(), DL))
+        DerefAndAligned.insert(PO);
     }
   }
   return false;
@@ -63,8 +67,12 @@ bool MemDerefPrinter::runOnFunction(Function &F) {
 
 void MemDerefPrinter::print(raw_ostream &OS, const Module *M) const {
   OS << "The following are dereferenceable:\n";
-  for (auto &V: Vec) {
+  for (Value *V: Deref) {
     V->print(OS);
+    if (DerefAndAligned.count(V))
+      OS << "\t(aligned)";
+    else
+      OS << "\t(unaligned)";
     OS << "\n\n";
   }
 }