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-rw-r--r--Eigen/src/Core/util/ConfigureVectorization.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/Eigen/src/Core/util/ConfigureVectorization.h b/Eigen/src/Core/util/ConfigureVectorization.h
index d2f2f33f7..3cf5cb480 100644
--- a/Eigen/src/Core/util/ConfigureVectorization.h
+++ b/Eigen/src/Core/util/ConfigureVectorization.h
@@ -375,6 +375,13 @@
#if defined(__F16C__) && (!defined(EIGEN_COMP_CLANG) || EIGEN_COMP_CLANG>=380)
// We can use the optimized fp16 to float and float to fp16 conversion routines
#define EIGEN_HAS_FP16_C
+
+ #if defined(EIGEN_COMP_CLANG)
+ // Workaround for clang: The FP16C intrinsics for clang are included by
+ // immintrin.h, as opposed to emmintrin.h as suggested by Intel:
+ // https://software.intel.com/sites/landingpage/IntrinsicsGuide/#othertechs=FP16C&expand=1711
+ #include <immintrin.h>
+ #endif
#endif
#if defined EIGEN_CUDACC