From 2c95e5508e83de7c05a6f511eba48e5e18aa6828 Mon Sep 17 00:00:00 2001
From: Rasmus Munk Larsen <4643818-rmlarsen1@users.noreply.gitlab.com>
Date: Tue, 9 Jun 2026 20:15:46 -0700
Subject: [PATCH] Test: relax vectorization_logic_half unrolling expectation
 broken on AVX-512

libeigen/eigen!2633

Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
---
 test/vectorization_logic.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/test/vectorization_logic.cpp b/test/vectorization_logic.cpp
index 523389108..c02a98007 100644
--- a/test/vectorization_logic.cpp
+++ b/test/vectorization_logic.cpp
@@ -407,11 +407,14 @@ struct vectorization_logic_half {
       VERIFY(test_assign(Matrix3(), Matrix3().cwiseQuotient(Matrix3()),
                          PacketTraits::HasDiv ? LinearVectorizedTraversal : LinearTraversal, -1));
 
+      // Unrolling further depends on the linear packet width: find_assign_linear_packet
+      // may pick a full-width packet here (e.g. Packet16i on AVX-512), which scales the
+      // unrolling limit - ignore.
       VERIFY(test_assign(Matrix<Scalar, 17, 17>(), Matrix<Scalar, 17, 17>() + Matrix<Scalar, 17, 17>(),
                          sizeof(Scalar) == 16
                              ? InnerVectorizedTraversal
                              : (EIGEN_UNALIGNED_VECTORIZE ? LinearVectorizedTraversal : LinearTraversal),
-                         NoUnrolling));
+                         -1));
 
       VERIFY(test_assign(Matrix11(),
                          Matrix<Scalar, 17, 17>().template block<MinVSize, MinVSize>(2, 3) +