Bug 955918

Summary:	llvm-core/polly: Not working on llvm-core/clang-21.0.0_pre20250510: Unknown command line argument '-polly'
Product:	Gentoo Linux	Reporter:	zyxhere <zyx>
Component:	Current packages	Assignee:	LLVM support project <llvm>
Status:	UNCONFIRMED ---
Severity:	normal	CC:	mgorny, zyx
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	example build.log.bz2 example build.log where it warns about polly not being used compiler-rt.build.log.bz2 correct-compiler-rt

Description zyxhere 2025-05-13 13:47:21 UTC

Created attachment 928734 [details]
example build.log.bz2

Polly is not being use with clang-21: my llvm.conf:

POLLY="-mllvm=-polly -mllvm=-polly-vectorizer=stripmine
	-mllvm=-polly-omp-backend=LLVM -mllvm=-polly-parallel
	 -mllvm=-polly-num-threads=9 -mllvm=-polly-scheduling=dynamic"
COLOURS="-fdiagnostics-color=always -fcolor-diagnostics"
COMMON_FLAGS="-march=native -O2 -pipe -flto=thin -fomit-frame-pointer
		${HARDEN} ${COLOURS} ${POLLY}"
CFLAGS="${COMMON_FLAGS}"
CXXFLAGS="${COMMON_FLAGS}"
FCFLAGS="${COMMON_FLAGS}"
FFLAGS="${COMMON_FLAGS}"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs
		-flto=thin -fuse-ld=lld -Wl,--color-diagnostics"
GOAMD64="v3"
CGO_CFLAGS="${COMMON_FLAGS}"
CGO_CXXFLAGS="${COMMON_FLAGS}"
CGO_FFLAGS="${COMMON_FLAGS}"
CGO_LDFLAGS="${LDFLAGS}"
RUSTFLAGS="${RUSTFLAGS}"
CC="clang"
CXX="clang++"
CPP="clang-cpp"
LD="ld.lld"
AR="llvm-ar"
AS="llvm-as"
NM="llvm-nm"
RANLIB="llvm-ranlib"
READELF="llvm-readelf"
OBJDUMP="llvm-objdump"
OBJCOPY="llvm-objcopy"
STRIP="llvm-strip"
user@localhost /etc/portage $ cat /etc/clang/21/gentoo-plugins.cfg 
# This file is used to load optional LLVM plugins.
-fpass-plugin=LLVMPolly.so
-fplugin=LLVMPolly.so

Portage 3.0.68 (python 3.13.3-final-0, default/linux/amd64/23.0/no-multilib/hardened/systemd, gcc-15, glibc-2.41-r2, 6.14.6-gentoo-dist-hardened x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-6.14.6-gentoo-dist-hardened-x86_64-12th_Gen_Intel-R-_Core-TM-_i5-1235U-with-glibc2.41
KiB Mem:    11959572 total,   1980280 free
KiB Swap:    8290300 total,   6565868 free
Timestamp of repository gentoo: Mon, 12 May 2025 17:53:55 +0000
Head commit of repository gentoo: 043fa5b71d2df453edf8f5ff00e0330ae0e83185

Timestamp of repository guru: Sat, 10 May 2025 20:25:05 +0000
Head commit of repository guru: b3e6db0846bfcb6cbeb5acf5c7fb12c12b60d1e9

sh bash 5.2_p37-r3
ld GNU ld (Gentoo 2.44 p1) 2.44.0
app-misc/pax-utils:        1.3.8::gentoo
app-shells/bash:           5.2_p37-r3::gentoo
dev-build/autoconf:        2.13-r8::gentoo, 2.72-r1::gentoo
dev-build/automake:        1.17-r2::gentoo
dev-build/cmake:           3.31.7-r1::gentoo
dev-build/libtool:         2.5.4::gentoo
dev-build/make:            4.4.1-r100::gentoo
dev-build/meson:           1.8.0::gentoo
dev-lang/perl:             5.40.2::gentoo
dev-lang/python:           3.12.10::gentoo, 3.13.3::gentoo, 3.14.0_beta1::gentoo
dev-lang/rust-bin:         1.86.0-r1::gentoo
llvm-core/clang:           19.1.7::gentoo, 21.0.0_pre20250510::gentoo
llvm-core/lld:             21.0.0_pre20250510::gentoo
llvm-core/llvm:            19.1.7::gentoo, 21.0.0_pre20250510::gentoo
sys-apps/baselayout:       2.17::gentoo
sys-apps/sandbox:          2.46::gentoo
sys-apps/systemd:          257.5::gentoo
sys-devel/binutils:        2.44::gentoo
sys-devel/binutils-config: 5.5.2::gentoo
sys-devel/gcc:             15.1.1_p20250510::gentoo
sys-devel/gcc-config:      2.12.1::gentoo
sys-kernel/linux-headers:  6.14::gentoo (virtual/os-headers)
sys-libs/glibc:            2.41-r2::gentoo
Repositories:

gentoo
    location: /var/db/repos/gentoo
    sync-type: git
    sync-uri: https://anongit.gentoo.org/git/repo/sync/gentoo.git
    priority: -1000
    volatile: False

guru
    location: /var/db/repos/guru
    sync-type: git
    sync-uri: https://anongit.gentoo.org/git/repo/sync/guru.git
    masters: gentoo
    volatile: False

local
    location: /var/db/repos/local
    masters: gentoo
    volatile: True

Binary Repositories:

gentoobinhost
    priority: 1
    sync-uri: https://distfiles.gentoo.org/releases/amd64/binpackages/23.0/x86-64-v3

Installed sets: @base, @extra, @gnomie, @utils
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="@FREE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe -flto=auto 		-fno-semantic-interposition -ftrivial-auto-var-init=zero -Werror=lto-type-mismatch -fdiagnostics-color=always -Werror=strict-aliasing -Werror=format-security"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d"
CXXFLAGS="-march=native -O2 -pipe -flto=auto 		-fno-semantic-interposition -ftrivial-auto-var-init=zero -Werror=lto-type-mismatch -fdiagnostics-color=always -Werror=odr -Werror=format-security"
DISTDIR="/var/cache/distfiles"
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="-march=native -O2 -pipe -flto=auto 		-fno-semantic-interposition -ftrivial-auto-var-init=zero -Werror=lto-type-mismatch -fdiagnostics-color=always"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg-live config-protect-if-modified distlocks ebuild-locks export-pms-vars fixlafiles ipc-sandbox merge-sync merge-wait multilib-strict network-sandbox news parallel-fetch pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox strict strict-keepdir unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync warn-on-large-env xattr"
FFLAGS="-march=native -O2 -pipe -flto=auto 		-fno-semantic-interposition -ftrivial-auto-var-init=zero -Werror=lto-type-mismatch -fdiagnostics-color=always"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="C.UTF8"
LD="ld.mold"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs -flto=auto -fuse-ld=mold -Wl,--color-diagnostics 		-Wl,--defsym=__gentoo_check_ldflags__=0"
LEX="flex"
LIBTOOL="rlibtool"
MAKE="make LIBTOOL=rlibtool"
MAKEFLAGS="LIBTOOL=rlibtool"
MAKEOPTS="-j10"
PKGDIR="/var/cache/binpkgs"
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"
PORTAGE_TMPDIR="/var/tmp"
RUSTFLAGS="-C target-cpu=native -C linker=clang -C linker-plugin-lto 		-C link-arg=-flto=auto -C link-arg=-fuse-ld=mold"
SHELL="/bin/bash"
USE="acl amd64 aom av1 avif bluetooth bzip2 cet crypt cups dbus dist-kernel ffmpeg flac fontconfig gdbm gif gles gles2 gnome gnome-keyring gstreamer gtk gtk4 hardened harfbuzz iconv icu io-uring ipv6 jpeg jpegxl keyring lcms libaom libtirpc lto lz4 lzma lzo modemmanager ncurses networkmanager nls openh264 openmp opus orc pam pcre pdf pgo pic pie pipewire png policykit profile readline screencast seccomp sound spell ssl ssp svg systemd test-rust tiff tpm udev udisks unicode upower usb vaapi vala vpx vulkan wayland webp xattr xml xtpax zlib zstd" ABI_X86="64" ADA_TARGET="gcc_14" 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="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 ssse3 vpclmulqdq" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax navcom oceanserver oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 tsip tripmate tnt ublox" GUILE_SINGLE_TARGET="3-0" GUILE_TARGETS="3-0" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LLVM_SLOT="19" LLVM_TARGETS="x86 AMDGPU" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-2" POSTGRES_TARGETS="postgres17" PYTHON_SINGLE_TARGET="python3_13" PYTHON_TARGETS="python3_13" RUBY_TARGETS="ruby32" VIDEO_CARDS="intel lavapipe" 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, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LFLAGS, LINGUAS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, RANLIB, READELF, SIZE, STRINGS, STRIP, YACC, YFLAGS

=================================================================
                        Package Settings
=================================================================

llvm-core/clang-runtime-19.1.7::gentoo was built with the following:
USE="compiler-rt openmp sanitize -libcxx -offload"
CFLAGS="-march=native -O2 -pipe -flto=auto -fno-semantic-interposition -ftrivial-auto-var-init=zero -Werror=format-security -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing -fdiagnostics-color=always"
CXXFLAGS="-march=native -O2 -pipe -flto=auto -fno-semantic-interposition -ftrivial-auto-var-init=zero -Werror=format-security -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing -fdiagnostics-color=always"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs -flto=auto -fuse-ld=mold -Wl,--color-diagnostics"


llvm-core/clang-runtime-21.0.0_pre20250510::gentoo was built with the following:
USE="compiler-rt default-lld openmp polly sanitize -default-compiler-rt -default-libcxx -libcxx -llvm-libunwind -offload"

Comment 1 zyxhere 2025-05-13 13:48:19 UTC

Created attachment 928735 [details]
example build.log where it warns about polly not being used

Comment 2 Michał Górny archtester

2025-05-13 19:19:01 UTC

Why does the bug summary state a different error than the logs?  FWIU clang is complaining that -mllvm=polly... is being passed to linker invocations.

Comment 3 zyxhere 2025-05-13 19:25:24 UTC

(In reply to Michał Górny from comment #2)
> Why does the bug summary state a different error than the logs?  FWIU clang
> is complaining that -mllvm=polly... is being passed to linker invocations.

What about the first build with qemu?

Comment 4 Michał Górny archtester

2025-05-13 19:26:46 UTC

Sorry, got confused about the attachments.

Comment 5 zyxhere 2025-05-19 08:05:56 UTC

llvm-runtimes/compiler-rt also fails with polly but WebKit and mold build fine 🥴

Comment 6 zyxhere 2025-05-19 08:06:37 UTC

Created attachment 929107 [details]
compiler-rt.build.log.bz2

Comment 7 zyxhere 2025-05-19 08:12:38 UTC

(In reply to zyxhere from comment #6)
> Created attachment 929107 [details]
> compiler-rt.build.log.bz2

Wrong build.log attaching the correct one

Comment 8 zyxhere 2025-05-19 08:13:04 UTC

Created attachment 929108 [details]
correct-compiler-rt

Comment 9 Sam James archtester

2025-05-19 08:31:16 UTC

Please try to find a small testcase. Especially important is whether it's the build system mangling arguments or whether it fails when invoked directly and correctly.