From 75395847817b88798f9d8cdfb7bc99388167d291 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Thu, 6 May 2010 00:29:41 +0000
Subject: [PATCH] Update LabelsBeforeInsn also, when creating unknown-position
 labels.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103145 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 4da549866bf..4dc53059c1a 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -2162,6 +2162,11 @@ void DwarfDebug::beginScope(const MachineInstr *MI) {
       PrevInstLoc = DL;
       PrevLabel = Label;
     }
+
+    // If this instruction begins a scope then note down corresponding label.
+    if (InsnsBeginScopeSet.count(MI) != 0)
+      LabelsBeforeInsn[MI] = Label;
+
     return;
   }