https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118318
Bug ID: 118318
Summary: ICE when building firefox-134.0 with PGO
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: gcov-profile
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
It'll take me some time to try get a testcase. Hints or ideas welcome. I think
it's a regression but it's possibly caused by FF changes and was latent
otherwise, I can't easily check that yet.
```
/usr/bin/x86_64-pc-linux-gnu-gcc-15 -std=gnu99 -U_FORTIFY_SOURCE
-D_FORTIFY_SOURCE=3 -fstack-protector-strong -fstrict-flex-arrays=1 -pthread
-ffunction-sections -fdata-sections -fno-math-errno -pipe -fPIC -march=native
-mtls-dialect=gnu2 -fno-semantic-interposition -pipe -fcf-protection=none -O3
-fomit-frame-pointer -funwind-tables -shared -Wl,-z,defs -Wl,--gc-sections
-Wl,-h,libmozavutil.so -o ../../../dist/bin/libmozavutil.so
-Wl,@/var/tmp/portage/www-client/firefox-134.0/work/firefox_build/media/ffvpx/libavutil/libmozavutil_so.list
-flto=32 -flifetime-dse=1 -march=native -mtls-dialect=gnu2
-fno-semantic-interposition -pipe -fcf-protection=none -Wl,-O1 -Wl,--as-needed
-Wl,-z,pack-relative-relocs -fuse-ld=mold
-Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,-z,relro -Wl,-z,now
-Wl,--undefined-version -Wl,-rpath=/usr/lib64/firefox,--enable-new-dtags
-Wl,-z,noexecstack -Wl,-z,text -Wl,-z,relro -Wl,-z,now -Wl,-z,nocopyreloc
-fuse-ld=bfd -Wl,-z,pack-relative-relocs -fstack-protector-strong
-Wl,-rpath-link,/var/tmp/portage/www-client/firefox-134.0/work/firefox_build/dist/bin
-fprofile-use ../../../dist/bin/libgkcodecs.so
-Wl,--version-script,libmozavutil.so.symbols -ldl -lm
during IPA pass: cp
lto1: internal compiler error: in operator+=, at profile-count.h:932
0x5c9a735fa9a9 internal_error(char const*, ...)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/diagnostic-global-context.cc:517
0x5c9a735fab44 fancy_abort(char const*, int, char const*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/diagnostic.cc:1722
0x5c9a71ff25ae profile_count::operator+=(profile_count const&)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/profile-count.h:932
0x5c9a71ff25ae profile_count::operator+=(profile_count const&)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/profile-count.h:919
0x5c9a735282ae adjust_clone_incoming_counts(cgraph_node*,
desc_incoming_count_struct*) [clone .isra.0]
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/ipa-cp.cc:4609
0x5c9a71ebf7bc update_counts_for_self_gen_clones
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/ipa-cp.cc:4725
0x5c9a71ebf7bc decide_whether_version_node
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/ipa-cp.cc:6087
0x5c9a73ecc65e ipcp_decision_stage
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/ipa-cp.cc:6252
0x5c9a73ecc65e ipcp_driver
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/ipa-cp.cc:6427
0x5c9a73ecc65e execute
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/ipa-cp.cc:6500
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://bugs.gentoo.org/> for instructions.
lto-wrapper: fatal error: /usr/bin/x86_64-pc-linux-gnu-gcc-15 returned 1 exit
status
compilation terminated.
/usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../x86_64-pc-linux-gnu/bin/ld.bfd:
error: lto-wrapper failed
collect2: error: ld returned 1 exit status
```
```
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/15/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-15.0.9999/work/gcc-15.0.9999/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/15
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15
--disable-silent-rules --disable-dependency-tracking
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/15/python
--enable-objc-gc --enable-languages=c,c++,d,go,objc,obj-c++,fortran,ada,m2,rust
--enable-obsolete --enable-secureplt --disable-werror --with-system-zlib
--enable-nls --without-included-gettext --disable-libunwind-exceptions
--enable-checking=yes,extra,rtl --with-bugurl=https://bugs.gentoo.org/
--with-pkgversion='Gentoo Hardened 15.0.9999 p, commit
f6d3d0becd191f48aca221595377e39e53708adf' --with-gcc-major-version-only
--enable-libstdcxx-time --enable-lto --disable-libstdcxx-pch --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
--enable-multilib --with-multilib-list=m32,m64 --disable-fixed-point
--enable-targets=all --enable-offload-defaulted
--enable-offload-targets=nvptx-none --enable-libgomp --disable-libssp
--enable-libada --disable-cet --disable-systemtap --enable-valgrind-annotations
--disable-vtable-verify --disable-libvtv --with-zstd --with-isl
--disable-isl-version-check --enable-default-pie --enable-host-pie
--enable-host-bind-now --enable-default-ssp --disable-fixincludes
--with-build-config='bootstrap-O3 bootstrap-lto'
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.0 20250106 (experimental)
144ddb0cdfa7a09ccbaaea5ec72837346fbc1d8d (Gentoo Hardened 15.0.9999 p, commit
f6d3d0becd191f48aca221595377e39e53708adf)
```
