From 0da751baf72542ab66518e4549e39da5f34216b4 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Tue, 18 May 2010 22:41:32 +0000
Subject: [PATCH] Add some more debug output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104080 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/LoopStrengthReduce.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index eac1a023bb6..249b2ac68cf 100644
--- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -2695,6 +2695,7 @@ void LSRInstance::NarrowSearchSpaceUsingHeuristics() {
 
     // Ok, we have too many of formulae on our hands to conveniently handle.
     // Use a rough heuristic to thin out the list.
+    DEBUG(dbgs() << "The search space is too complex.\n");
 
     // Pick the register which is used by the most LSRUses, which is likely
     // to be a good reuse register candidate.