Use isTrueWhenEqual and isFalseWhenEqual instead of assuming that

[oota-llvm.git] / lib / Analysis / LoopPass.cpp

diff --git a/lib/Analysis/LoopPass.cpp b/lib/Analysis/LoopPass.cpp
index f26c0eb6668f0dafecb4cd166f626a0538a2f732..2727d2f9465c13102724455a981e0b755465d56e 100644 (file)
--- a/lib/Analysis/LoopPass.cpp
+++ b/lib/Analysis/LoopPass.cpp
@@ -14,9 +14,44 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Analysis/LoopPass.h"
+#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/Support/Debug.h"
 #include "llvm/Support/Timer.h"
 using namespace llvm;
 
+namespace {
+
+/// PrintLoopPass - Print a Function corresponding to a Loop.
+///
+class PrintLoopPass : public LoopPass {
+private:
+  std::string Banner;
+  raw_ostream &Out;       // raw_ostream to print on.
+
+public:
+  static char ID;
+  PrintLoopPass() : LoopPass(&ID), Out(dbgs()) {}
+  PrintLoopPass(const std::string &B, raw_ostream &o)
+      : LoopPass(&ID), Banner(B), Out(o) {}
+
+  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    AU.setPreservesAll();
+  }
+
+  bool runOnLoop(Loop *L, LPPassManager &) {
+    Out << Banner;
+    for (Loop::block_iterator b = L->block_begin(), be = L->block_end();
+         b != be;
+         ++b) {
+      (*b)->print(Out);
+    }
+    return false;
+  }
+};
+
+char PrintLoopPass::ID = 0;
+}
+
 //===----------------------------------------------------------------------===//
 // LPPassManager
 //
@@ -222,7 +257,7 @@ bool LPPassManager::runOnFunction(Function &F) {
       LoopPass *P = (LoopPass*)getContainedPass(Index);
 
       dumpPassInfo(P, EXECUTION_MSG, ON_LOOP_MSG,
-                   CurrentLoop->getHeader()->getNameStr());
+                   CurrentLoop->getHeader()->getName());
       dumpRequiredSet(P);
 
       initializeAnalysisImpl(P);
@@ -237,7 +272,7 @@ bool LPPassManager::runOnFunction(Function &F) {
       if (Changed)
         dumpPassInfo(P, MODIFICATION_MSG, ON_LOOP_MSG,
                      skipThisLoop ? "<deleted>" :
-                                    CurrentLoop->getHeader()->getNameStr());
+                                    CurrentLoop->getHeader()->getName());
       dumpPreservedSet(P);
 
       if (!skipThisLoop) {
@@ -259,7 +294,7 @@ bool LPPassManager::runOnFunction(Function &F) {
       recordAvailableAnalysis(P);
       removeDeadPasses(P,
                        skipThisLoop ? "<deleted>" :
-                                      CurrentLoop->getHeader()->getNameStr(),
+                                      CurrentLoop->getHeader()->getName(),
                        ON_LOOP_MSG);
 
       if (skipThisLoop)
@@ -306,6 +341,11 @@ void LPPassManager::dumpPassStructure(unsigned Offset) {
 //===----------------------------------------------------------------------===//
 // LoopPass
 
+Pass *LoopPass::createPrinterPass(raw_ostream &O,
+                                  const std::string &Banner) const {
+  return new PrintLoopPass(Banner, O);
+}
+
 // Check if this pass is suitable for the current LPPassManager, if
 // available. This pass P is not suitable for a LPPassManager if P
 // is not preserving higher level analysis info used by other