diff --git a/gcc/config/i386/i386.opt.urls b/gcc/config/i386/i386.opt.urls
index 81c5bb9a927..40e8a844936 100644
--- a/gcc/config/i386/i386.opt.urls
+++ b/gcc/config/i386/i386.opt.urls
@@ -238,12 +238,6 @@ UrlSuffix(gcc/x86-Options.html#index-mavx2)
 mavx512f
 UrlSuffix(gcc/x86-Options.html#index-mavx512f)
 
-mavx512pf
-UrlSuffix(gcc/x86-Options.html#index-mavx512pf)
-
-mavx512er
-UrlSuffix(gcc/x86-Options.html#index-mavx512er)
-
 mavx512cd
 UrlSuffix(gcc/x86-Options.html#index-mavx512cd)
 
@@ -262,12 +256,6 @@ UrlSuffix(gcc/x86-Options.html#index-mavx512ifma)
 mavx512vbmi
 UrlSuffix(gcc/x86-Options.html#index-mavx512vbmi)
 
-mavx5124fmaps
-UrlSuffix(gcc/x86-Options.html#index-mavx5124fmaps)
-
-mavx5124vnniw
-UrlSuffix(gcc/x86-Options.html#index-mavx5124vnniw)
-
 mavx512vpopcntdq
 UrlSuffix(gcc/x86-Options.html#index-mavx512vpopcntdq)
 
@@ -409,9 +397,6 @@ UrlSuffix(gcc/x86-Options.html#index-mrdrnd)
 mf16c
 UrlSuffix(gcc/x86-Options.html#index-mf16c)
 
-mprefetchwt1
-UrlSuffix(gcc/x86-Options.html#index-mprefetchwt1)
-
 mfentry
 UrlSuffix(gcc/x86-Options.html#index-mfentry)
 
diff --git a/gcc/config/riscv/riscv.opt.urls b/gcc/config/riscv/riscv.opt.urls
index 2f01ae5d627..e02ef3ee3dd 100644
--- a/gcc/config/riscv/riscv.opt.urls
+++ b/gcc/config/riscv/riscv.opt.urls
@@ -91,3 +91,6 @@ UrlSuffix(gcc/RISC-V-Options.html#index-minline-strlen)
 
 ; skipping UrlSuffix for 'mtls-dialect=' due to finding no URLs
 
+mfence-tso
+UrlSuffix(gcc/RISC-V-Options.html#index-mfence-tso)
+