diff --git a/llvm/utils/emacs/llvm-mode.el b/llvm/utils/emacs/llvm-mode.el
@@ -25,7 +25,7 @@
        '("alwaysinline" "argmemonly" "allocsize" "builtin" "cold" "convergent" "dereferenceable" "dereferenceable_or_null" "hot" "inaccessiblememonly"
          "inaccessiblemem_or_argmemonly" "inalloca" "inlinehint" "jumptable" "minsize" "mustprogress" "naked" "nobuiltin" "nonnull"
          "nocallback" "nocf_check" "noduplicate" "nofree" "noimplicitfloat" "noinline" "nomerge" "nonlazybind" "noprofile" "noredzone" "noreturn"
-         "norecurse" "nosync" "noundef" "nounwind" "null_pointer_is_valid" "optforfuzzing" "optnone" "optsize" "preallocated" "readnone" "readonly" "returned" "returns_twice"
+         "norecurse" "nosync" "noundef" "nounwind" "nosanitize_coverage" "null_pointer_is_valid" "optforfuzzing" "optnone" "optsize" "preallocated" "readnone" "readonly" "returned" "returns_twice"
          "shadowcallstack" "speculatable" "speculative_load_hardening" "ssp" "sspreq" "sspstrong" "safestack" "sanitize_address" "sanitize_hwaddress" "sanitize_memtag"
          "sanitize_thread" "sanitize_memory" "strictfp" "swifterror" "uwtable" "vscale_range" "willreturn" "writeonly" "immarg") 'symbols) . font-lock-constant-face)
    ;; Variables

diff --git a/llvm/utils/llvm.grm b/llvm/utils/llvm.grm
@@ -176,6 +176,7 @@ FuncAttr      ::= noreturn
  | sanitize_thread
  | sanitize_memory
  | mustprogress
+ | nosanitize_coverage
  ;
 
 OptFuncAttrs  ::= + _ | OptFuncAttrs FuncAttr ;

diff --git a/llvm/utils/vim/syntax/llvm.vim b/llvm/utils/vim/syntax/llvm.vim
@@ -138,6 +138,7 @@ syn keyword llvmKeyword
       \ nosync
       \ noundef
       \ nounwind
+      \ nosanitize_coverage
       \ null_pointer_is_valid
       \ optforfuzzing
       \ optnone

diff --git a/llvm/utils/vscode/llvm/syntaxes/ll.tmLanguage.yaml b/llvm/utils/vscode/llvm/syntaxes/ll.tmLanguage.yaml
@@ -237,6 +237,7 @@ patterns:
             \\bnosync\\b|\
             \\bnoundef\\b|\
             \\bnounwind\\b|\
+            \\bnosanitize_coverage\\b|\
             \\bnull_pointer_is_valid\\b|\
             \\boptforfuzzing\\b|\
             \\boptnone\\b|\