gnu: eigen: Update to 3.4.0.

* gnu/packages/algebra.scm (eigen): Update to 3.4.0.
* gnu/packages/patches/eigen-fix-strict-aliasing-bug.patch: New file.
* gnu/packages/patches/eigen-remove-openmp-error-counting.patch,
gnu/packages/patches/eigen-stabilise-sparseqr-test.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Update accordingly.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

1 files changed, 0 insertions, 64 deletions

diff --git a/gnu/packages/patches/eigen-remove-openmp-error-counting.patch b/gnu/packages/patches/eigen-remove-openmp-error-counting.patch
deleted file mode 100644
index 556474e8b3..0000000000
--- a/gnu/packages/patches/eigen-remove-openmp-error-counting.patch
+++ /dev/null
@@ -1,64 +0,0 @@
-From ef3cc72cb65e2d500459c178c63e349bacfa834f Mon Sep 17 00:00:00 2001
-From: Luke Peterson <hazelnusse@gmail.com>
-Date: Thu, 8 Oct 2020 12:16:53 -0700
-Subject: [PATCH] Remove error counting in OpenMP parallelize_gemm
-
-This resolves a compilation error associated with
-Eigen::eigen_assert_exception. It also eliminates the counting of
-exceptions that may occur in the OpenMP parallel section. If an
-unhandled exception occurs in this section, the behavior is non-conforming
-according to the OpenMP specification.
----
- Eigen/src/Core/products/Parallelizer.h | 14 +++++---------
- test/CMakeLists.txt                    |  2 +-
- 2 files changed, 6 insertions(+), 10 deletions(-)
-
-diff --git a/Eigen/src/Core/products/Parallelizer.h b/Eigen/src/Core/products/Parallelizer.h
-index 67b2442b5..a3cc05b77 100644
---- a/Eigen/src/Core/products/Parallelizer.h
-+++ b/Eigen/src/Core/products/Parallelizer.h
-@@ -132,8 +132,7 @@ void parallelize_gemm(const Functor& func, Index rows, Index cols, Index depth,
- 
-   ei_declare_aligned_stack_constructed_variable(GemmParallelInfo<Index>,info,threads,0);
- 
--  int errorCount = 0;
--  #pragma omp parallel num_threads(threads) reduction(+: errorCount)
-+  #pragma omp parallel num_threads(threads)
-   {
-     Index i = omp_get_thread_num();
-     // Note that the actual number of threads might be lower than the number of request ones.
-@@ -152,14 +151,11 @@ void parallelize_gemm(const Functor& func, Index rows, Index cols, Index depth,
-     info[i].lhs_start = r0;
-     info[i].lhs_length = actualBlockRows;
- 
--    EIGEN_TRY {
--      if(transpose) func(c0, actualBlockCols, 0, rows, info);
--      else          func(0, rows, c0, actualBlockCols, info);
--    } EIGEN_CATCH(...) {
--      ++errorCount;
--    }
-+    if(transpose)
-+      func(c0, actualBlockCols, 0, rows, info);
-+    else
-+      func(0, rows, c0, actualBlockCols, info);
-   }
--  if (errorCount) EIGEN_THROW_X(Eigen::eigen_assert_exception());
- #endif
- }
- 
-diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
-index 0747aa6cb..b02577780 100644
---- a/test/CMakeLists.txt
-+++ b/test/CMakeLists.txt
-@@ -163,7 +163,7 @@ ei_add_test(constructor)
- ei_add_test(linearstructure)
- ei_add_test(integer_types)
- ei_add_test(unalignedcount)
--if(NOT EIGEN_TEST_NO_EXCEPTIONS)
-+if(NOT EIGEN_TEST_NO_EXCEPTIONS AND NOT EIGEN_TEST_OPENMP)
-   ei_add_test(exceptions)
- endif()
- ei_add_test(redux)
--- 
-GitLab
-