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bug #1678: Fix lack of __FMA__ macro on MSVC with AVX512

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This commit is contained in:
Gael Guennebaud 2019-02-15 10:30:28 +01:00
parent d85ae650bf
commit 559320745e
1 changed files with 1 additions and 1 deletions
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Eigen/src/Core/util/ConfigureVectorization.h
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@ -261,7 +261,7 @@
#define EIGEN_VECTORIZE_FMA #define EIGEN_VECTORIZE_FMA
#endif #endif
#if defined(__AVX512F__) #if defined(__AVX512F__)
#ifndef __FMA__ #ifndef EIGEN_VECTORIZE_FMA
#if EIGEN_COMP_GNUC #if EIGEN_COMP_GNUC
#error Please add -mfma to your compiler flags: compiling with -mavx512f alone without SSE/AVX FMA is not supported (bug 1638). #error Please add -mfma to your compiler flags: compiling with -mavx512f alone without SSE/AVX FMA is not supported (bug 1638).
#else #else