From 837ada7692a87a3a561172f987a69413faf07c75 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Tue, 26 Jan 2010 04:12:55 +0000
Subject: [PATCH] Print empty and full sets specially.

llvm-svn: 94506
---
 llvm/lib/Support/ConstantRange.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/Support/ConstantRange.cpp b/llvm/lib/Support/ConstantRange.cpp
index ddf14e33eed8..bfee730db146 100644
--- a/llvm/lib/Support/ConstantRange.cpp
+++ b/llvm/lib/Support/ConstantRange.cpp
@@ -650,7 +650,12 @@ ConstantRange::lshr(const ConstantRange &Amount) const {
 /// print - Print out the bounds to a stream...
 ///
 void ConstantRange::print(raw_ostream &OS) const {
-  OS << "[" << Lower << "," << Upper << ")";
+  if (isFullSet())
+    OS << "full-set";
+  else if (isEmptySet())
+    OS << "empty-set";
+  else
+    OS << "[" << Lower << "," << Upper << ")";
 }
 
 /// dump - Allow printing from a debugger easily...