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Bug 933827

Summary: www-client/chromium-125.0.6422.112[system-toolchain]: "LLVM ERROR: Do not know how to split this operator's operand!" with sys-devel/clang-18.1.6
Product: Gentoo Linux Reporter: Matt Whitlock <gentoo>
Component: Current packagesAssignee: Chromium Project <chromium>
Status: RESOLVED WORKSFORME    
Severity: normal CC: gentoo, kangie
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
Whiteboard:
Package list:
Runtime testing required: ---
Attachments: chromium-125.0.6422.112-skia-xnnpack-disable-avx512.patch

Description Matt Whitlock 2024-06-08 14:31:55 UTC 
FAILED: v8_context_snapshot_generator 
"python3.12" "../../build/toolchain/gcc_link_wrapper.py" --output="./v8_context_snapshot_generator" -- x86_64-pc-linux-gnu-clang++ -fuse-ld=lld -Wl,--build-id -fPIC -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,--icf=all -Wl,--color-diagnostics -Wl,--thinlto-cache-dir=thinlto-cache -Wl,--thinlto-cache-policy=cache_size=10\%:cache_size_bytes=40g:cache_size_files=100000 -flto=thin -Wl,--thinlto-jobs=all -Wl,-mllvm,-import-instr-limit=30 -Wl,-mllvm,-disable-auto-upgrade-debug-info -fwhole-program-vtables -Wl,--undefined-version -Wl,--no-call-graph-profile-sort -no-canonical-prefixes -Wl,-z,defs -Wl,--as-needed -nostdlib++ -Wl,--lto-O0 -rdynamic -pie -Wl,--disable-new-dtags -Wl,--icf=none prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_abort.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide.rlib prebuilt_rustc_sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject.rlib -Wl,-O2 -Wl,--as-needed -Wl,--undefined-version -o "./v8_context_snapshot_generator" -Wl,--start-group @"./v8_context_snapshot_generator.rsp"  -Wl,--end-group  -ldl -lpthread -lrt -lgmodule-2.0 -lgobject-2.0 -lgthread-2.0 -lglib-2.0 -licui18n -licuuc -licudata -lsmime3 -lnss3 -lnssutil3 -lplds4 -lplc4 -lnspr4 -ldbus-1 -latomic -lz -lresolv -lgio-2.0 -lzstd -ljpeg -lpng16 -lxml2 -lxslt -lexpat -lwebpdemux -lwebpmux -lwebp -lfreetype -lfontconfig -lharfbuzz-subset -lharfbuzz -lopenh264 -lm -lX11 -lXcomposite -lXdamage -lXext -lXfixes -lXrender -lXrandr -lXtst -ldrm -lxcb -lxkbcommon -lgbm -lXi -lpci -latk-bridge-2.0 -latk-1.0 -lpangocairo-1.0 -lpango-1.0 -lcairo -lasound -lFLAC -latspi obj/third_party/rust/cxx/v1/lib/libcxx_lib.rlib obj/skia/libskia_cbridge_urust_uside.rlib obj/third_party/rust/font_types/v0_4/lib/libfont_types_lib.rlib obj/third_party/rust/read_fonts/v0_15/lib/libread_fonts_lib.rlib obj/third_party/rust/skrifa/v0_15/lib/libskrifa_lib.rlib obj/build/rust/chromium_prelude/libchromium.rlib obj/third_party/blink/common/rust_crash/libthird_uparty_sblink_scommon_srust_ucrash_crs.rlib
LLVM ERROR: Do not know how to split this operator's operand!

PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.      Running pass 'Function Pass Manager' on module 'obj/third_party/xnnpack/amalgam_f16c-fma-avx512f-avx512cd-avx512bw-avx512dq-avx512vl/avx512skx.o'.
1.      Running pass 'X86 DAG->DAG Instruction Selection' on function '@xnn_f32_f16_vcvt_ukernel__avx512skx_u16'
LLVM ERROR: Failed to rename temporary file thinlto-cache/Thin-9c755d.tmp.o to thinlto-cache/llvmcache-CE28C944C5CEA4B13292724C74845542DCAB23AA: No such file or directory

x86_64-pc-linux-gnu-clang++: error: unable to execute command: Aborted
x86_64-pc-linux-gnu-clang++: error: linker command failed due to signal (use -v to see invocation)
ninja: build stopped: subcommand failed.
 * ERROR: www-client/chromium-125.0.6422.112::gentoo failed (compile phase):
 *   ninja -v -j1 -l0 -C out/Release chrome chromedriver chrome_sandbox failed
 * 
 * Call stack:
 *     ebuild.sh, line  136:  Called src_compile
 *   environment, line 5096:  Called chromium_compile
 *   environment, line 1855:  Called eninja '-C' 'out/Release' 'chrome' 'chromedriver' 'chrome_sandbox'
 *   environment, line 2469:  Called die
 * The specific snippet of code:
 *       "$@" || die -n "${*} failed"


# emerge --info '=www-client/chromium-125.0.6422.112::gentoo'
Portage 3.0.65 (python 3.12.4-final-0, default/linux/amd64/23.0/desktop/plasma, gcc-14, glibc-2.39-r7, 6.6.30-gentoo x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-6.6.30-gentoo-x86_64-Intel-R-_Core-TM-2_Quad_CPU_Q6600_@_2.40GHz-with-glibc2.39
KiB Mem:     8143808 total,    304500 free
KiB Swap:    8388604 total,   2348416 free
Timestamp of repository gentoo: Sat, 08 Jun 2024 08:45:00 +0000
Head commit of repository gentoo: 104ec6eec8ef8534c68365e15ff8c3dc0ab49f68
Timestamp of repository 4nykey: Thu, 06 Jun 2024 20:49:09 +0000
Head commit of repository 4nykey: d92c038a4c0f45b0fdb24ebaf21ad739b812d9d4

Timestamp of repository bitcoin: Thu, 06 Jun 2024 20:49:05 +0000
Head commit of repository bitcoin: 38d941b3a7266407229b7c07eda2b0bdb7c9121d

Timestamp of repository eigenlay: Sat, 08 Jun 2024 04:03:48 +0000
Head commit of repository eigenlay: 559f73df7f54fbc4cf974ceacb2359b3f042e35f

Timestamp of repository gentoo-bootstrap: Mon, 20 May 2024 17:23:40 +0000
Head commit of repository gentoo-bootstrap: 7af2233681c0d9234c1ada340fcd7ee7bcf7e5f2

Timestamp of repository kde: Fri, 07 Jun 2024 17:33:49 +0000
Head commit of repository kde: f8c324f94d0c0f60567566af877b132831a0b8e6

Timestamp of repository science: Thu, 06 Jun 2024 23:18:50 +0000
Head commit of repository science: 1eea40a561a0e7c1588bfa057e6c9ce79e7ab03d

sh dash 0.5.12
ld GNU ld (Gentoo 2.42 p3) 2.42.0
distcc 3.4 x86_64-pc-linux-gnu [disabled]
ccache version 4.10 [enabled]
app-misc/pax-utils:        1.3.7::gentoo
app-shells/bash:           5.2_p26-r3::gentoo
dev-build/autoconf:        2.72-r1::gentoo
dev-build/automake:        1.16.5-r2::gentoo
dev-build/cmake:           3.29.3::gentoo
dev-build/libtool:         2.4.7-r4::gentoo
dev-build/make:            4.4.1-r1::gentoo
dev-build/meson:           1.4.1::gentoo
dev-java/java-config:      2.3.3-r1::gentoo
dev-lang/perl:             5.38.2-r6::gentoo
dev-lang/python:           3.10.14_p1-r1::gentoo, 3.11.9-r1::gentoo, 3.12.4::gentoo, 3.13.0_beta1_p3::gentoo
dev-lang/rust:             1.78.0::gentoo
dev-util/ccache:           4.10-r1::gentoo
sys-apps/baselayout:       2.15::gentoo
sys-apps/openrc:           0.54::gentoo
sys-apps/sandbox:          2.38::gentoo
sys-devel/binutils:        2.42-r1::gentoo
sys-devel/binutils-config: 5.5::gentoo
sys-devel/clang:           15.0.7-r3::gentoo, 17.0.6::gentoo, 18.1.6::gentoo
sys-devel/gcc:             14.1.1_p20240601::gentoo
sys-devel/gcc-config:      2.11::gentoo
sys-devel/lld:             18.1.6::gentoo
sys-devel/llvm:            15.0.7-r3::gentoo, 17.0.6::gentoo, 18.1.6::gentoo
sys-kernel/linux-headers:  6.9::gentoo (virtual/os-headers)
sys-libs/glibc:            2.39-r7::gentoo
Repositories:

gentoo
    location: /var/db/repos/gentoo
    sync-type: rsync
    sync-uri: rsync://rsync11.us.gentoo.org/gentoo-portage/
    priority: -1000
    volatile: False
    sync-rsync-verify-metamanifest: no
    sync-rsync-extra-opts: 
    sync-rsync-verify-jobs: 1
    sync-rsync-verify-max-age: 3

4nykey
    location: /var/db/repos/4nykey
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/4nykey.git
    masters: gentoo
    volatile: False

bitcoin
    location: /var/db/repos/bitcoin
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/bitcoin.git
    masters: gentoo
    volatile: False

crossdev
    location: /var/db/repos/crossdev
    masters: gentoo
    volatile: False

eigenlay
    location: /var/db/repos/eigenlay
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/eigenlay.git
    masters: gentoo
    volatile: False

gentoo-bootstrap
    location: /var/db/repos/gentoo-bootstrap
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/gentoo-bootstrap.git
    masters: gentoo
    volatile: False

kde
    location: /var/db/repos/kde
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/kde.git
    masters: gentoo
    volatile: False

science
    location: /var/db/repos/science
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/science.git
    masters: gentoo
    volatile: False

local
    location: /var/db/repos/local
    masters: gentoo
    priority: 1000
    volatile: False

ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O3 -ggdb -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/X11/xkb /usr/share/config /usr/share/easy-rsa /usr/share/gnupg/qualified.txt /usr/share/i18n/locales/en_US /usr/share/sddm/scripts/Xsetup /usr/share/themes/oxygen-gtk/gtk-2.0 /usr/share/themes/oxygen-gtk/gtk-3.0"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dbus-1 /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php8.3/ext-active/ /etc/php/cgi-php8.3/ext-active/ /etc/php/cli-php8.3/ext-active/ /etc/php/fpm-php8.3/ext-active/ /etc/php/phpdbg-php8.3/ext-active/ /etc/revdep-rebuild /etc/sandbox.d"
CXXFLAGS="-march=native -O3 -ggdb -pipe"
DISTDIR="/var/cache/distfiles"
EMERGE_DEFAULT_OPTS="--nospinner --unordered-display --verbose-conflicts --autounmask=n --backtrack=100 --usepkg --load-average=8"
ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GDK_PIXBUF_MODULE_FILE GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR XDG_STATE_HOME"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg-live ccache compressdebug config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-wait multilib-strict network-sandbox news parallel-fetch pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms splitdebug strict strict-keepdir unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync warn-on-large-env"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="        http://mirror.leaseweb.com/gentoo/      http://mirrors.rit.edu/gentoo/  http://mirror.csclub.uwaterloo.ca/gentoo-distfiles/ "
INSTALL_MASK="/etc/grub.d /etc/pm       /etc/systemd /lib/systemd /usr/lib/systemd/system /usr/lib/sysusers.d   /etc/xinetd.d   /usr/share/bash-completion /usr/share/fish /usr/share/zsh   /usr/share/cmake/Help /usr/share/gtk-doc        /usr/share/locale/*/ -/usr/share/locale/en -/usr/share/locale/en_US"
LANG="en_US.UTF-8"
LDFLAGS="-Wl,-O2 -Wl,--as-needed"
LEX="flex"
LINGUAS="en_US en"
MAKEOPTS="-j4 -l8"
PKGDIR="/var/cache/binpkgs"
PORTAGE_COMPRESS="xz"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git --exclude=/CACHEDIR.TAG"
PORTAGE_TMPDIR="/var/tmp"
SHELL="/bin/bash"
USE="X a52 aac acpi alsa amd64 branding bzip2 cairo cdda cdparanoia cdr crypt cups curl dbus declarative dri dts dvd dvdr elogind encode evdev exif ffmpeg flac fontconfig gif git gmp gtk gui iconv icu id3tag ipv6 jpeg kde kwallet lame lcms libnotify libsamplerate libtirpc lzma mad matroska mng mp3 mp4 mpeg multilib ncurses networkmanager ogg opengl opus pam pango pcre pdf php plasma png policykit postgres ppds qml qt5 quicktime readline sctp sdl seccomp smp sound spell ssl startup-notification subversion svg taglib tcmalloc test-rust theora threads tiff truetype udev udisks unicode upower usb v4l vaapi vdpau vnc vorbis vpx vulkan webkit webp widgets x264 xcb xft xml xv xvid xvmc zlib zstd" ABI_X86="64" ADA_TARGET="gcc_12" ALSA_CARDS="hda-intel" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_anon authn_dbm authn_file authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 sse3 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 ntrip navcom oceanserver oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 tsip tripmate tnt ublox" INPUT_DEVICES="evdev libinput" KERNEL="linux" L10N="en-US en" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LLVM_TARGETS="AMDGPU" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-2" POSTGRES_TARGETS="postgres15" PYTHON_SINGLE_TARGET="python3_12" PYTHON_TARGETS="python3_12" QEMU_SOFTMMU_TARGETS="arm" RUBY_TARGETS="ruby31 ruby32" SANE_BACKENDS="genesys" VIDEO_CARDS="amdgpu radeonsi" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account"
Unset:  ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, LC_ALL, LD, LFLAGS, LIBTOOL, MAKE, MAKEFLAGS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, RANLIB, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS


# emerge -pqv '=www-client/chromium-125.0.6422.112::gentoo'
[ebuild     U ] www-client/chromium-125.0.6422.112 [124.0.6367.78] USE="X cups lto proprietary-codecs qt5 system-harfbuzz system-icu system-png system-toolchain system-zstd vaapi -bindist -custom-cflags -debug -ffmpeg-chromium -gtk4 -hangouts (-headless) -kerberos -libcxx -official -pax-kernel (-pgo) -pulseaudio -qt6 -screencast (-selinux) -wayland -widevine" L10N="-af -am -ar -bg -bn -ca -cs -da -de -el -en-GB -es -es-419 -et -fa -fi -fil -fr -gu -he -hi -hr -hu -id -it -ja -kn -ko -lt -lv -ml -mr -ms -nb -nl -pl -pt-BR -pt-PT -ro -ru -sk -sl -sr -sv -sw -ta -te -th -tr -uk -ur -vi -zh-CN -zh-TW" 


Possibly related to Bug 931623 and/or Bug 931267.

I am emerging sys-devel/{llvm,clang,lld}-18.1.7 now and will attempt to build www-client/chromium-125.0.6422.141 with FEATURES="-ccache" to see if that changes anything. I'll report back in several days since that's how long Chromium takes to build without ccache on this system.
Comment 1 Matt Whitlock 2024-06-08 14:34:41 UTC 
The build.log, even compressed with 'lzip -9', is too large to attach to Bugzilla. Please find it here:

https://www.mattwhitlock.com/chromium-125.0.6422.112-build.log.lz
Comment 2 Matt Whitlock 2024-06-13 20:23:44 UTC 
Created attachment 895782 [details, diff]
chromium-125.0.6422.112-skia-xnnpack-disable-avx512.patch

Due to the outstanding security vulnerabilities in Chromium 124, my priority was to get 125 installed ASAP, so I built it using the attached patch, which I adapted from attachment 892627 [details, diff], that strips out the problematic AVX512 code entirely. That build just completed successfully.

Now I am building again, this time without the patch. This should (hopefully) go quicker since I am once again allowing ccache to reuse the cached objects that the previous, successful build emitted, with the only difference between the builds being the re-addition of the AVX512 code.
Comment 3 Matt Whitlock 2024-06-18 21:09:41 UTC 
Sorry that took so long. I got an abysmal 0.30% ccache hit rate somehow. But the build did complete successfully, so it looks like sys-devel/clang-18.1.7 fixed the problem.