From a7fe922b98bb45be7dce7c1cfe668ec27eeddc74 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Wed, 17 Aug 2016 19:33:52 +0000
Subject: Vendor import of llvm release_39 branch r278877:
 https://llvm.org/svn/llvm-project/llvm/branches/release_39@278877

---
 lib/CodeGen/SafeStackColoring.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/CodeGen/SafeStackColoring.cpp')

diff --git a/lib/CodeGen/SafeStackColoring.cpp b/lib/CodeGen/SafeStackColoring.cpp
index 709614f57e7d..795eb8d27191 100644
--- a/lib/CodeGen/SafeStackColoring.cpp
+++ b/lib/CodeGen/SafeStackColoring.cpp
@@ -25,7 +25,9 @@ static cl::opt<bool> ClColoring("safe-stack-coloring",
                                 cl::Hidden, cl::init(true));
 
 const StackColoring::LiveRange &StackColoring::getLiveRange(AllocaInst *AI) {
-  return LiveRanges[AllocaNumbering[AI]];
+  const auto IT = AllocaNumbering.find(AI);
+  assert(IT != AllocaNumbering.end());
+  return LiveRanges[IT->second];
 }
 
 bool StackColoring::readMarker(Instruction *I, bool *IsStart) {
-- 
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