https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128227
Bug ID: 128227
Summary: [17 regression] ICE when building KDE Plasma's Union
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, lto
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
CC: jmelcr at gcc dot gnu.org
Target Milestone: ---
```
$ g++ -O3 -fPIC -flto=auto PackageHandler.cpp.ii -march=znver2 -mshstk -shared
lto1: error: callback edge indexOf.constprop/241->__builtin_unreachable/242 has
no callback-carrying edge
_ZN9QtPrivate7indexOfINSt10filesystem7__cxx114pathES3_EExRK5QListIT_ERKT0_x.constprop.0/241
(indexOf.constprop)
Type: function definition analyzed
Visibility:
References:
_ZZNK5QListINSt10filesystem7__cxx114pathEE4sizeEvENKUlvE_clEv._assume.0/8
(addr) __builtin_unreachable/242 (addr)
Referring:
Read from file: /tmp/cccshLB0.o
Clone of
_ZN9QtPrivate7indexOfINSt10filesystem7__cxx114pathES3_EExRK5QListIT_ERKT0_x/82
Availability: local
Unit id: 1
Function flags: count:530433390 (estimated locally) local
Called by:
_ZN5Union14PackageHandler9uninstallERKNS_12StylePackageERSt10error_code/83
(856416480 (estimated locally),0.80 per call)
Calls: _ZNKSt10filesystem7__cxx114path7compareERKS1_/189 (586155664
(estimated locally),1.11 per call) __builtin_unreachable/242 (callback) (0
(precise),0.00 per call)
_ZZNK5QListINSt10filesystem7__cxx114pathEE4sizeEvENKUlvE_clEv._assume.0/8
(callback)
during IPA pass: cp
lto1: internal compiler error: verify_cgraph_node failed
/usr/libexec/gcc/x86_64-pc-linux-gnu/17/lto1 -march=znver2 -mmmx -mpopcnt -msse
-msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mavx -mavx2 -msse4a -mno-fma4 -mno-xop
-mfma -mno-avx512f -mbmi -mbmi2 -maes -mpclmul -mno-avx512vl -mno-avx512bw
-mno-avx512dq -mno-avx512cd -mno-avx512vbmi -mno-avx512ifma
-mno-avx512vpopcntdq -mno-avx512vbmi2 -mno-gfni -mno-vpclmulqdq -mno-avx512vnni
-mno-avx512bitalg -mno-avx512bf16 -mno-avx512vp2intersect -mno-3dnow -madx
-mabm -mno-cldemote -mclflushopt -mclwb -mclzero -mcx16 -mno-enqcmd -mf16c
-mfsgsbase -mfxsr -mno-hle -msahf -mno-lwp -mlzcnt -mmovbe -mno-movdir64b
-mno-movdiri -mmwaitx -mno-pconfig -mno-pku -mprfchw -mno-ptwrite -mrdpid
-mrdrnd -mrdseed -mno-rtm -mno-serialize -mno-sgx -msha -mno-shstk -mno-tbm
-mno-tsxldtrk -mno-vaes -mno-waitpkg -mwbnoinvd -mxsave -mxsavec -mxsaveopt
-mxsaves -mno-amx-tile -mno-amx-int8 -mno-amx-bf16 -mno-uintr -mno-hreset
-mno-kl -mno-widekl -mno-avxvnni -mno-avx512fp16 -mno-avxifma -mno-avxvnniint8
-mno-avxneconvert -mno-cmpccxadd -mno-amx-fp16 -mno-prefetchi -mno-raoint
-mno-amx-complex -mno-avxvnniint16 -mno-sm3 -mno-sha512 -mno-sm4 -mno-apxf
-mno-usermsr -mno-avx10.1 -mno-avx10.2 -mno-amx-avx512 -mno-amx-fp8 -mno-movrs
-mno-amx-movrs -mno-avx512bmm -mno-avx10v2aux -mno-acev1 -quiet -dumpbase
./a.wpa -mmmx -mpopcnt -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mavx
-mavx2 -msse4a -mno-fma4 -mno-xop -mfma -mno-avx512f -mbmi -mbmi2 -maes
-mpclmul -mno-avx512vl -mno-avx512bw -mno-avx512dq -mno-avx512cd
-mno-avx512vbmi -mno-avx512ifma -mno-avx512vpopcntdq -mno-avx512vbmi2 -mno-gfni
-mno-vpclmulqdq -mno-avx512vnni -mno-avx512bitalg -mno-avx512bf16
-mno-avx512vp2intersect -mno-3dnow -madx -mabm -mno-cldemote -mclflushopt
-mclwb -mclzero -mcx16 -mno-enqcmd -mf16c -mfsgsbase -mfxsr -mno-hle -msahf
-mno-lwp -mlzcnt -mmovbe -mno-movdir64b -mno-movdiri -mmwaitx -mno-pconfig
-mno-pku -mprfchw -mno-ptwrite -mrdpid -mrdrnd -mrdseed -mno-rtm -mno-serialize
-mno-sgx -msha -mno-shstk -mno-tbm -mno-tsxldtrk -mno-vaes -mno-waitpkg
-mwbnoinvd -mxsave -mxsavec -mxsaveopt -mxsaves -mno-amx-tile -mno-amx-int8
-mno-amx-bf16 -mno-uintr -mno-hreset -mno-kl -mno-widekl -mno-avxvnni
-mno-avx512fp16 -mno-avxifma -mno-avxvnniint8 -mno-avxneconvert -mno-cmpccxadd
-mno-amx-fp16 -mno-prefetchi -mno-raoint -mno-amx-complex -mno-avxvnniint16
-mno-sm3 -mno-sha512 -mno-sm4 -mno-apxf -mno-usermsr -mno-avx10.1 -mno-avx10.2
-mno-amx-avx512 -mno-amx-fp8 -mno-movrs -mno-amx-movrs -mno-avx512bmm
-mno-avx10v2aux -mno-acev1 -mtune=znver2 -mtls-dialect=gnu2 -mtls-dialect=gnu2
-O3 -O3 -fno-openmp -fno-openacc -fcf-protection=none -fPIC
-foffload-options=-l_GCC_stdc++ -foffload-options=-l_GCC_m
-fltrans-output-list=/tmp/ccaXjakO.ltrans.out -fwpa=jobserver
-fresolution=/tmp/ccQZ9ofa.res -flinker-output=dyn
-foffload-options=-fno-stack-protector @/tmp/ccdQpsqX
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://bugs.gentoo.org/> for instructions.
lto-wrapper: fatal error: g++ returned 1 exit status
compilation terminated.
/usr/x86_64-pc-linux-gnu/binutils-bin/9999/ld: 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/17/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage.notmp/portage/sys-devel/gcc-17.0.9999/work/gcc-17.0.9999/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/17
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/17/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/17
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/17/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/17/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/17/include/g++-v17
--disable-silent-rules --disable-dependency-tracking
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/17/python
--enable-libphobos --enable-objc-gc
--enable-languages=c,c++,d,objc,obj-c++,fortran,ada,algol68,jit
--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 17.0.9999 p, commit
bddeb646c14925aaa1b0b51f3f5026200b0c8756' --with-gcc-major-version-only
--enable-libstdcxx-time --enable-lto --disable-libstdcxx-pch
--enable-linker-build-id --enable-libada --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --with-tls=gnu2 --enable-multilib
--with-multilib-list=m32,mx32,m64 --disable-fixed-point --with-abi=m64
--enable-targets=all --enable-offload-defaulted
--enable-offload-targets=nvptx-none --enable-libgomp --disable-libssp
--disable-cet --enable-systemtap --enable-valgrind-annotations
--enable-valgrind-interop --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-gxx-libcxx-include-dir=/usr/include/c++/v1 --enable-host-shared
--enable-libgdiagnostics --with-build-config='bootstrap-O3 bootstrap-lto'
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 17.0.0 20261027 (experimental)
9a8f57d7713b4816a77144c5ef121989d9fd4a09 (Gentoo Hardened 17.0.9999 p, commit
bddeb646c14925aaa1b0b51f3f5026200b0c8756)
```
