From 43ed25f1d96ce2e39d3654fbe89f986cfa2c559e Mon Sep 17 00:00:00 2001
From: Michael Kruse <llvm@meinersbur.de>
Date: Wed, 22 Feb 2017 13:48:35 +0000
Subject: [PATCH] [DeLICM] Print message when zone analysis is not available on
 -analysis.

This is to distinguish the cases that analysis has failed from the case
where not transformation was performed.

llvm-svn: 295833
---
 polly/lib/Transform/DeLICM.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/polly/lib/Transform/DeLICM.cpp b/polly/lib/Transform/DeLICM.cpp
index bf9aea1d6cab..38430951fee6 100644
--- a/polly/lib/Transform/DeLICM.cpp
+++ b/polly/lib/Transform/DeLICM.cpp
@@ -1593,6 +1593,11 @@ public:
 
   /// Dump the internal information about a performed DeLICM to @p OS.
   void print(llvm::raw_ostream &OS, int indent = 0) {
+    if (!Zone.isUsable()) {
+      OS << "Zone not computed\n";
+      return;
+    }
+
     printAccesses(OS, indent);
   }
 };