From 4dccaa587e147fd1b3b9d83a4d62a4e487a5935f Mon Sep 17 00:00:00 2001
From: Rasmus Munk Larsen <rmlarsen@google.com>
Date: Wed, 27 Mar 2024 14:37:52 -0700
Subject: [PATCH] Use truncation rather than rounding when casting Packet2d to
 Packet2l.

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

diff --git a/Eigen/src/Core/arch/SSE/TypeCasting.h b/Eigen/src/Core/arch/SSE/TypeCasting.h
index 02a670cce..9a7732a60 100644
--- a/Eigen/src/Core/arch/SSE/TypeCasting.h
+++ b/Eigen/src/Core/arch/SSE/TypeCasting.h
@@ -89,7 +89,7 @@ EIGEN_STRONG_INLINE Packet4i pcast<Packet2d, Packet4i>(const Packet2d& a, const
 template <>
 EIGEN_STRONG_INLINE Packet2l pcast<Packet2d, Packet2l>(const Packet2d& a) {
 #if EIGEN_ARCH_x86_64
-  return _mm_set_epi64x(_mm_cvtsd_si64(preverse(a)), _mm_cvtsd_si64(a));
+  return _mm_set_epi64x(_mm_cvttsd_si64(preverse(a)), _mm_cvttsd_si64(a));
 #else
   return _mm_set_epi64x(static_cast<int64_t>(pfirst(preverse(a))), static_cast<int64_t>(pfirst(a)));
 #endif