From aa551ae10e0cac338a9fa1ff9e20571eae07aac2 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Wed, 24 Jun 2009 00:33:16 +0000
Subject: [PATCH] Include the maximum trip count expression in
 ScalarEvolution's print output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74035 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/ScalarEvolution.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 6e5dfbb35ed..60a6e9140c9 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -4339,6 +4339,15 @@ static void PrintLoopInfo(raw_ostream &OS, ScalarEvolution *SE,
     OS << "Unpredictable backedge-taken count. ";
   }
 
+  OS << "\n";
+  OS << "Loop " << L->getHeader()->getName() << ": ";
+
+  if (!isa<SCEVCouldNotCompute>(SE->getMaxBackedgeTakenCount(L))) {
+    OS << "max backedge-taken count is " << *SE->getMaxBackedgeTakenCount(L);
+  } else {
+    OS << "Unpredictable max backedge-taken count. ";
+  }
+
   OS << "\n";
 }