From a9a2f2bebfb122dc4689c4e0060f3e72efe1f344 Mon Sep 17 00:00:00 2001
From: shrek1402 <shrek.2000@yandex.ru>
Date: Fri, 4 Dec 2020 17:18:08 +0000
Subject: The function 'prefetch' did not work correctly on the win64 platform

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

(limited to 'Eigen/src/Core/GenericPacketMath.h')

diff --git a/Eigen/src/Core/GenericPacketMath.h b/Eigen/src/Core/GenericPacketMath.h
index e2fc7002b..66f18d36c 100644
--- a/Eigen/src/Core/GenericPacketMath.h
+++ b/Eigen/src/Core/GenericPacketMath.h
@@ -568,7 +568,7 @@ template<typename Scalar> EIGEN_DEVICE_FUNC inline void prefetch(const Scalar* a
 #if defined(EIGEN_HIP_DEVICE_COMPILE)
   // do nothing
 #elif defined(EIGEN_CUDA_ARCH)
-#if defined(__LP64__)
+#if #if defined(__LP64__) || EIGEN_OS_WIN64
   // 64-bit pointer operand constraint for inlined asm
   asm(" prefetch.L1 [ %1 ];" : "=l"(addr) : "l"(addr));
 #else
-- 
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