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Add ULP accuracy measurement tool and documentation for vectorized math functions

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libeigen/eigen!2153

Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
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Rasmus Munk Larsen
2026-03-01 13:22:16 -08:00
parent c20b6f5c41
commit c66fc52868
5 changed files with 973 additions and 0 deletions
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12
test/CMakeLists.txt
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@@ -532,6 +532,18 @@ if(EIGEN_TEST_BUILD_DOCUMENTATION)
add_dependencies(buildtests doc)
endif()
# ULP accuracy measurement tool (see test/ulp_accuracy/README.md)
find_package(MPFR)
find_package(GMP)
add_executable(ulp_accuracy ulp_accuracy/ulp_accuracy.cpp)
target_compile_options(ulp_accuracy PRIVATE -pthread)
target_link_libraries(ulp_accuracy Eigen3::Eigen ${CMAKE_THREAD_LIBS_INIT} pthread)
if(MPFR_FOUND AND GMP_FOUND)
target_include_directories(ulp_accuracy PRIVATE ${MPFR_INCLUDES} ${GMP_INCLUDES})
target_link_libraries(ulp_accuracy ${MPFR_LIBRARIES} ${GMP_LIBRARIES})
target_compile_definitions(ulp_accuracy PRIVATE EIGEN_HAS_MPFR)
endif()
# Register all smoke tests
include("EigenSmokeTestList")
ei_add_smoke_tests("${ei_smoke_test_list}")