diff --git a/library/stdarch/crates/core_arch/src/x86/abm.rs b/library/stdarch/crates/core_arch/src/x86/abm.rs
index 59f3877b4ace..7f46e1a8d06e 100644
--- a/library/stdarch/crates/core_arch/src/x86/abm.rs
+++ b/library/stdarch/crates/core_arch/src/x86/abm.rs
@@ -13,7 +13,7 @@
 //! available.
 //!
 //! [intel64_ref]: http://www.intel.de/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf
-//! [amd64_ref]: http://support.amd.com/TechDocs/24594.pdf
+//! [amd64_ref]: https://docs.amd.com/v/u/en-US/24594_3.37
 //! [wikipedia_bmi]:
 //! https://en.wikipedia.org/wiki/Bit_Manipulation_Instruction_Sets#ABM_.28Advanced_Bit_Manipulation.29
 
diff --git a/library/stdarch/crates/core_arch/src/x86/avx.rs b/library/stdarch/crates/core_arch/src/x86/avx.rs
index acba0a3db7c6..bda0b8ac5047 100644
--- a/library/stdarch/crates/core_arch/src/x86/avx.rs
+++ b/library/stdarch/crates/core_arch/src/x86/avx.rs
@@ -10,7 +10,7 @@
 //! [Wikipedia][wiki] provides a quick overview of the instructions available.
 //!
 //! [intel64_ref]: http://www.intel.de/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf
-//! [amd64_ref]: http://support.amd.com/TechDocs/24594.pdf
+//! [amd64_ref]: https://docs.amd.com/v/u/en-US/24594_3.37
 //! [wiki]: https://en.wikipedia.org/wiki/Advanced_Vector_Extensions
 
 use crate::{
diff --git a/library/stdarch/crates/core_arch/src/x86/avx2.rs b/library/stdarch/crates/core_arch/src/x86/avx2.rs
index b3b2accd7338..e7fd19fa2e97 100644
--- a/library/stdarch/crates/core_arch/src/x86/avx2.rs
+++ b/library/stdarch/crates/core_arch/src/x86/avx2.rs
@@ -14,7 +14,7 @@
 //! overview of the instructions available.
 //!
 //! [intel64_ref]: http://www.intel.de/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf
-//! [amd64_ref]: http://support.amd.com/TechDocs/24594.pdf
+//! [amd64_ref]: https://docs.amd.com/v/u/en-US/24594_3.37
 //! [wiki_avx]: https://en.wikipedia.org/wiki/Advanced_Vector_Extensions
 //! [wiki_fma]: https://en.wikipedia.org/wiki/Fused_multiply-accumulate
 
diff --git a/library/stdarch/crates/core_arch/src/x86/cpuid.rs b/library/stdarch/crates/core_arch/src/x86/cpuid.rs
index b35699bd7ab2..3f13ea8369bb 100644
--- a/library/stdarch/crates/core_arch/src/x86/cpuid.rs
+++ b/library/stdarch/crates/core_arch/src/x86/cpuid.rs
@@ -54,7 +54,7 @@ pub struct CpuidResult {
 ///
 /// [wiki_cpuid]: https://en.wikipedia.org/wiki/CPUID
 /// [intel64_ref]: https://cdrdv2-public.intel.com/671110/325383-sdm-vol-2abcd.pdf
-/// [amd64_ref]: http://support.amd.com/TechDocs/24594.pdf
+/// [amd64_ref]: https://docs.amd.com/v/u/en-US/24594_3.37
 #[inline]
 #[cfg_attr(test, assert_instr(cpuid))]
 #[stable(feature = "simd_x86", since = "1.27.0")]
diff --git a/library/stdarch/crates/core_arch/src/x86/fma.rs b/library/stdarch/crates/core_arch/src/x86/fma.rs
index abf79f4904fe..a8439935660f 100644
--- a/library/stdarch/crates/core_arch/src/x86/fma.rs
+++ b/library/stdarch/crates/core_arch/src/x86/fma.rs
@@ -15,7 +15,7 @@
 //! instructions available.
 //!
 //! [intel64_ref]: http://www.intel.de/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf
-//! [amd64_ref]: http://support.amd.com/TechDocs/24594.pdf
+//! [amd64_ref]: https://docs.amd.com/v/u/en-US/24594_3.37
 //! [wiki_fma]: https://en.wikipedia.org/wiki/Fused_multiply-accumulate
 
 use crate::core_arch::x86::*;
diff --git a/library/stdarch/crates/core_arch/src/x86/tbm.rs b/library/stdarch/crates/core_arch/src/x86/tbm.rs
index d7769b916d4f..1e863fe15c0b 100644
--- a/library/stdarch/crates/core_arch/src/x86/tbm.rs
+++ b/library/stdarch/crates/core_arch/src/x86/tbm.rs
@@ -6,7 +6,7 @@
 //! [Wikipedia][wikipedia_bmi] provides a quick overview of the available
 //! instructions.
 //!
-//! [amd64_ref]: http://support.amd.com/TechDocs/24594.pdf
+//! [amd64_ref]: https://docs.amd.com/v/u/en-US/24594_3.37
 //! [wikipedia_bmi]:
 //! https://en.wikipedia.org/wiki/Bit_Manipulation_Instruction_Sets#ABM_.28Advanced_Bit_Manipulation.29
 
diff --git a/library/stdarch/crates/core_arch/src/x86_64/abm.rs b/library/stdarch/crates/core_arch/src/x86_64/abm.rs
index 63e422864d3b..2b63cb5dc763 100644
--- a/library/stdarch/crates/core_arch/src/x86_64/abm.rs
+++ b/library/stdarch/crates/core_arch/src/x86_64/abm.rs
@@ -13,7 +13,7 @@
 //! available.
 //!
 //! [intel64_ref]: http://www.intel.de/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf
-//! [amd64_ref]: http://support.amd.com/TechDocs/24594.pdf
+//! [amd64_ref]: https://docs.amd.com/v/u/en-US/24594_3.37
 //! [wikipedia_bmi]:
 //! https://en.wikipedia.org/wiki/Bit_Manipulation_Instruction_Sets#ABM_.28Advanced_Bit_Manipulation.29
 
diff --git a/library/stdarch/crates/core_arch/src/x86_64/avx.rs b/library/stdarch/crates/core_arch/src/x86_64/avx.rs
index bb8d25620714..80ef7fbd60a6 100644
--- a/library/stdarch/crates/core_arch/src/x86_64/avx.rs
+++ b/library/stdarch/crates/core_arch/src/x86_64/avx.rs
@@ -10,7 +10,7 @@
 //! [Wikipedia][wiki] provides a quick overview of the instructions available.
 //!
 //! [intel64_ref]: http://www.intel.de/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf
-//! [amd64_ref]: http://support.amd.com/TechDocs/24594.pdf
+//! [amd64_ref]: https://docs.amd.com/v/u/en-US/24594_3.37
 //! [wiki]: https://en.wikipedia.org/wiki/Advanced_Vector_Extensions
 
 use crate::{core_arch::x86::*, mem::transmute};
diff --git a/library/stdarch/crates/core_arch/src/x86_64/tbm.rs b/library/stdarch/crates/core_arch/src/x86_64/tbm.rs
index e7d4b8d3e4c9..031bd320713e 100644
--- a/library/stdarch/crates/core_arch/src/x86_64/tbm.rs
+++ b/library/stdarch/crates/core_arch/src/x86_64/tbm.rs
@@ -6,7 +6,7 @@
 //! [Wikipedia][wikipedia_bmi] provides a quick overview of the available
 //! instructions.
 //!
-//! [amd64_ref]: http://support.amd.com/TechDocs/24594.pdf
+//! [amd64_ref]: https://docs.amd.com/v/u/en-US/24594_3.37
 //! [wikipedia_bmi]:
 //! https://en.wikipedia.org/wiki/Bit_Manipulation_Instruction_Sets#ABM_.28Advanced_Bit_Manipulation.29