PR 751: Fixed compilation issue when compiling using MSVC with /arch:AVX512 flag
diff --git a/Eigen/src/Core/arch/AVX512/MathFunctions.h b/Eigen/src/Core/arch/AVX512/MathFunctions.h
index 1cf7338..99946cd 100644
--- a/Eigen/src/Core/arch/AVX512/MathFunctions.h
+++ b/Eigen/src/Core/arch/AVX512/MathFunctions.h
@@ -15,13 +15,13 @@
namespace internal {
// Disable the code for older versions of gcc that don't support many of the required avx512 instrinsics.
-#if EIGEN_GNUC_AT_LEAST(5, 3) || EIGEN_COMP_CLANG
+#if EIGEN_GNUC_AT_LEAST(5, 3) || EIGEN_COMP_CLANG || EIGEN_COMP_MSVC >= 1923
#define _EIGEN_DECLARE_CONST_Packet16f(NAME, X) \
const Packet16f p16f_##NAME = pset1<Packet16f>(X)
#define _EIGEN_DECLARE_CONST_Packet16f_FROM_INT(NAME, X) \
- const Packet16f p16f_##NAME = (__m512)pset1<Packet16i>(X)
+ const Packet16f p16f_##NAME = preinterpret<Packet16f,Packet16i>(pset1<Packet16i>(X))
#define _EIGEN_DECLARE_CONST_Packet8d(NAME, X) \
const Packet8d p8d_##NAME = pset1<Packet8d>(X)
@@ -72,7 +72,7 @@
x = pmax(x, p16f_min_norm_pos);
// Extract the shifted exponents.
- Packet16f emm0 = _mm512_cvtepi32_ps(_mm512_srli_epi32((__m512i)x, 23));
+ Packet16f emm0 = _mm512_cvtepi32_ps(_mm512_srli_epi32(preinterpret<Packet16i,Packet16f>(x), 23));
Packet16f e = _mm512_sub_ps(emm0, p16f_126f);
// Set the exponents to -1, i.e. x are in the range [0.5,1).
