[PM] Port LoopIdiomRecognize Pass to new PM

Summary: Port LoopIdiomRecognize Pass to new PM

Reviewers: davidxl

Subscribers: davide, sanjoy, mzolotukhin, llvm-commits

Differential Revision: http://reviews.llvm.org/D22250

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275202 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 32 insertions, 1 deletions

diff --git a/include/llvm/InitializePasses.h b/include/llvm/InitializePasses.h
index b17a216d328..e7504de68bb 100644
--- a/include/llvm/InitializePasses.h
+++ b/include/llvm/InitializePasses.h
@@ -177,7 +177,7 @@ void initializeLoopDataPrefetchPass(PassRegistry&);
 void initializeLoopDeletionPass(PassRegistry&);
 void initializeLoopDistributePass(PassRegistry&);
 void initializeLoopExtractorPass(PassRegistry&);
-void initializeLoopIdiomRecognizePass(PassRegistry&);
+void initializeLoopIdiomRecognizeLegacyPassPass(PassRegistry&);
 void initializeLoopInfoWrapperPassPass(PassRegistry&);
 void initializeLoopInstSimplifyPass(PassRegistry&);
 void initializeLoopInterchangePass(PassRegistry &);
diff --git a/include/llvm/Transforms/Scalar/LoopIdiomRecognize.h b/include/llvm/Transforms/Scalar/LoopIdiomRecognize.h
new file mode 100644
index 00000000000..cc66156fba8
--- /dev/null
+++ b/include/llvm/Transforms/Scalar/LoopIdiomRecognize.h
@@ -0,0 +1,31 @@
+//===- LoopIdiomRecognize.h - Loop Idiom Recognize Pass -------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This pass implements an idiom recognizer that transforms simple loops into a
+// non-loop form.  In cases that this kicks in, it can be a significant
+// performance win.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
+#define LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H
+
+#include "llvm/Analysis/LoopInfo.h"
+#include "llvm/IR/PassManager.h"
+
+namespace llvm {
+
+/// Performs Loop Idiom Recognize Pass.
+class LoopIdiomRecognizePass : public PassInfoMixin<LoopIdiomRecognizePass> {
+public:
+  PreservedAnalyses run(Loop &L, AnalysisManager<Loop> &AM);
+};
+} // end namespace llvm
+
+#endif // LLVM_TRANSFORMS_SCALAR_LOOPIDIOMRECOGNIZE_H