Roll clang llvmorg-13-init-9302-g897d7bce-1 : llvmorg-13-init-9881-g5…

…dad3d1b-1

Ran `./tools/clang/scripts/upload_revision.py 5dad3d1ba9ad01152be21e94cfbbfb31659ea3e1`.

Bug: 1208450,1208419
Change-Id: I04ce686653422166c189ff3325cf8c8024e4f840
Cq-Include-Trybots: chromium/try:chromeos-amd64-generic-cfi-thin-lto-rel
Cq-Include-Trybots: chromium/try:dawn-win10-x86-deps-rel
Cq-Include-Trybots: chromium/try:linux-chromeos-dbg
Cq-Include-Trybots: chromium/try:linux_angle_deqp_rel_ng
Cq-Include-Trybots: chromium/try:linux_chromium_cfi_rel_ng
Cq-Include-Trybots: chromium/try:linux_chromium_compile_dbg_32_ng
Cq-Include-Trybots: chromium/try:mac-arm64-rel
Cq-Include-Trybots: chromium/try:win-asan,win7-rel
Cq-Include-Trybots: chromium/try:android-official,fuchsia-official
Cq-Include-Trybots: chromium/try:mac-official,linux-official
Cq-Include-Trybots: chromium/try:win-official,win32-official
Cq-Include-Trybots: chrome/try:iphone-device,ipad-device
Cq-Include-Trybots: chrome/try:linux-chromeos-chrome
Cq-Include-Trybots: chrome/try:win-chrome,win64-chrome,mac-chrome
Binary-Size: crbug.com/1208513
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2890398
Commit-Queue: Nico Weber <thakis@chromium.org>
Commit-Queue: Hans Wennborg <hans@chromium.org>
Auto-Submit: Nico Weber <thakis@chromium.org>
Reviewed-by: Hans Wennborg <hans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#882355}

build/config/compiler/BUILD.gn

@@ -1623,6 +1623,10 @@ config("default_warnings") {
 
           # TODO(https://crbug.com/1050281): Clean up, enable.
           "-Wno-non-c-typedef-for-linkage",
+
+          # TODO(https://crbug.com/1208419): Possibly reenable if the warning
+          # becomes usable again upstream.
+          "-Wno-null-pointer-arithmetic",
         ]
 
         cflags_c += [

tools/clang/scripts/update.py

@@ -39,7 +39,7 @@
 # https://chromium.googlesource.com/chromium/src/+/main/docs/updating_clang.md
 # Reverting problematic clang rolls is safe, though.
 # This is the output of `git describe` and is usable as a commit-ish.
-CLANG_REVISION = 'llvmorg-13-init-9302-g897d7bce'
+CLANG_REVISION = 'llvmorg-13-init-9881-g5dad3d1b'
 CLANG_SUB_REVISION = 1
 
 PACKAGE_VERSION = '%s-%s' % (CLANG_REVISION, CLANG_SUB_REVISION)