From eb6929cb191c1b91dda784697faedcfdb245345a Mon Sep 17 00:00:00 2001
From: Benoit Jacob <benoitjacob@google.com>
Date: Mon, 16 Mar 2015 16:15:47 -0400
Subject: fix bug in maxsize calculation, which would cause products of size >
 2048 to address the lookup table out of bounds

---
 Eigen/src/Core/products/LookupBlockingSizesTable.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Eigen/src/Core/products')

diff --git a/Eigen/src/Core/products/LookupBlockingSizesTable.h b/Eigen/src/Core/products/LookupBlockingSizesTable.h
index f955253f8..3c8aba6f8 100644
--- a/Eigen/src/Core/products/LookupBlockingSizesTable.h
+++ b/Eigen/src/Core/products/LookupBlockingSizesTable.h
@@ -59,7 +59,7 @@ struct LookupBlockingSizesFromTableImpl<LhsScalar, RhsScalar, true>
     using std::max;
     typedef BlockingSizesLookupTable<LhsScalar, RhsScalar> Table;
     const uint16_t minsize = Table::BaseSize;
-    const uint16_t maxsize = minsize << (Table::NumSizes + 1);
+    const uint16_t maxsize = minsize << (Table::NumSizes - 1);
     const uint16_t k_clamped = max<uint16_t>(minsize, min<Index>(k, maxsize));
     const uint16_t m_clamped = max<uint16_t>(minsize, min<Index>(m, maxsize));
     const uint16_t n_clamped = max<uint16_t>(minsize, min<Index>(n, maxsize));
-- 
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