Fix for gcc build error when using Eigen headers with AVX512

Eigen/src/Core/arch/AVX512/MathFunctions.h

diff --git a/Eigen/src/Core/arch/AVX512/MathFunctions.h b/Eigen/src/Core/arch/AVX512/MathFunctions.h
index 0346c1d..67043d0 100644
--- a/Eigen/src/Core/arch/AVX512/MathFunctions.h
+++ b/Eigen/src/Core/arch/AVX512/MathFunctions.h
@@ -72,7 +72,7 @@
   x = pmax(x, p16f_min_norm_pos);
 
   // Extract the shifted exponents.
-  Packet16f emm0 = _mm512_cvtepi32_ps(_mm512_srli_epi32(preinterpret<Packet16i,Packet16f>(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).