From 7e1e18fa1eaac4019deeb0f0e9de93541c29a7a4 Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@apple.com>
Date: Mon, 26 Mar 2012 06:10:32 +0000
Subject: [PATCH] Add a debug statement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153428 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 6ec38c57b18..4062ae97a49 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -4696,8 +4696,10 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
       V = BCI->getOperand(0);
     const AllocaInst *AI = dyn_cast<AllocaInst>(V);
     // Don't handle byval struct arguments or VLAs, for example.
-    if (!AI)
+    if (!AI) {
+      DEBUG(dbgs() << "Dropping debug location info for:\n\t" << DI << "\n");
       return 0;
+    }
     DenseMap<const AllocaInst*, int>::iterator SI =
       FuncInfo.StaticAllocaMap.find(AI);
     if (SI == FuncInfo.StaticAllocaMap.end())