+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(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;
+}
+