diff --git a/sysdeps/x86_64/dl-hwcaps-subdirs.c b/sysdeps/x86_64/dl-hwcaps-subdirs.c
new file mode 100644
index 0000000000..0a732a026b
--- /dev/null
+++ b/sysdeps/x86_64/dl-hwcaps-subdirs.c
@@ -0,0 +1,69 @@
+/* Architecture-specific glibc-hwcaps subdirectories. x86 version.
+ Copyright (C) 2020 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ . */
+
+#include
+#include
+
+const char _dl_hwcaps_subdirs[] = "x86-64-v4:x86-64-v3:x86-64-v2";
+
+int32_t
+_dl_hwcaps_subdirs_active (void)
+{
+ int32_t result = 0;
+ int32_t bit = 1 << 2;
+
+ /* Test in reverse preference order. */
+
+ /* x86-64-v2. */
+ if (!(CPU_FEATURE_USABLE (CMPXCHG16B)
+ && CPU_FEATURE_USABLE (LAHF64_SAHF64)
+ && CPU_FEATURE_USABLE (POPCNT)
+ && CPU_FEATURE_USABLE (SSE3)
+ && CPU_FEATURE_USABLE (SSE4_1)
+ && CPU_FEATURE_USABLE (SSE4_2)
+ && CPU_FEATURE_USABLE (SSSE3)))
+ return result;
+ result |= bit;
+ bit >>= 1;
+
+ /* x86-64-v3. */
+ if (!(CPU_FEATURE_USABLE (AVX)
+ && CPU_FEATURE_USABLE (AVX2)
+ && CPU_FEATURE_USABLE (BMI1)
+ && CPU_FEATURE_USABLE (BMI2)
+ && CPU_FEATURE_USABLE (F16C)
+ && CPU_FEATURE_USABLE (FMA)
+ && CPU_FEATURE_USABLE (LZCNT)
+ && CPU_FEATURE_USABLE (MOVBE)
+ && CPU_FEATURE_USABLE (OSXSAVE)))
+ return result;
+ result |= bit;
+ bit >>= 1;
+
+ /* x86-64-v4. */
+ if (!(CPU_FEATURE_USABLE (AVX512F)
+ && CPU_FEATURE_USABLE (AVX512BW)
+ && CPU_FEATURE_USABLE (AVX512CD)
+ && CPU_FEATURE_USABLE (AVX512DQ)
+ && CPU_FEATURE_USABLE (AVX512VL)))
+ return result;
+ result |= bit;
+ bit >>= 1;
+
+ return result;
+}