diff --git a/Eigen/src/Core/arch/AVX/PacketMath.h b/Eigen/src/Core/arch/AVX/PacketMath.h
index 2e5f5e5..0472e98 100644
--- a/Eigen/src/Core/arch/AVX/PacketMath.h
+++ b/Eigen/src/Core/arch/AVX/PacketMath.h
@@ -73,8 +73,7 @@
     HasExpm1  = 1,
     HasExp  = 1,
     HasNdtri = 1,
-    HasI0e  = 1,
-    HasI1e  = 1,
+    HasBessel  = 1,
     HasSqrt = 1,
     HasRsqrt = 1,
     HasTanh  = EIGEN_FAST_MATH,
diff --git a/Eigen/src/Core/arch/AVX512/PacketMath.h b/Eigen/src/Core/arch/AVX512/PacketMath.h
index 67e6676..589ccbb 100644
--- a/Eigen/src/Core/arch/AVX512/PacketMath.h
+++ b/Eigen/src/Core/arch/AVX512/PacketMath.h
@@ -99,8 +99,7 @@
     HasExpm1  = 1,
     HasNdtri = 1,
 #endif
-    HasI0e  = 1,
-    HasI1e  = 1,
+    HasBessel  = 1,
     HasExp = 1,
     HasSqrt = EIGEN_FAST_MATH,
     HasRsqrt = EIGEN_FAST_MATH,
diff --git a/Eigen/src/Core/arch/GPU/PacketMath.h b/Eigen/src/Core/arch/GPU/PacketMath.h
index bdbaa53..5a66e2d 100644
--- a/Eigen/src/Core/arch/GPU/PacketMath.h
+++ b/Eigen/src/Core/arch/GPU/PacketMath.h
@@ -45,8 +45,7 @@
     HasErf = 1,
     HasErfc = 1,
     HasNdtri = 1,
-    HasI0e = 1,
-    HasI1e = 1,
+    HasBessel = 1,
     HasIGamma = 1,
     HasIGammaDerA = 1,
     HasGammaSampleDerAlpha = 1,
@@ -80,8 +79,7 @@
     HasErf = 1,
     HasErfc = 1,
     HasNdtri = 1,
-    HasI0e = 1,
-    HasI1e = 1,
+    HasBessel = 1,
     HasIGamma = 1,
     HasIGammaDerA = 1,
     HasGammaSampleDerAlpha = 1,
diff --git a/Eigen/src/Core/arch/SSE/PacketMath.h b/Eigen/src/Core/arch/SSE/PacketMath.h
index 0aadefa..b48d70a 100755
--- a/Eigen/src/Core/arch/SSE/PacketMath.h
+++ b/Eigen/src/Core/arch/SSE/PacketMath.h
@@ -114,8 +114,7 @@
     HasExpm1  = 1,
     HasNdtri = 1,
     HasExp  = 1,
-    HasI0e  = 1,
-    HasI1e  = 1,
+    HasBessel  = 1,
     HasSqrt = 1,
     HasRsqrt = 1,
     HasTanh  = EIGEN_FAST_MATH,