https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113136
Bug ID: 113136 Summary: [14 regression] ICE when building Perl Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: sjames at gcc dot gnu.org CC: tnfchris at gcc dot gnu.org Target Milestone: --- I'll file bugs for each of these I hit, and then even if they're dupes, we get more test cases out of it, so... Hit when building perl-5.38. native=znver2: ``` x86_64-pc-linux-gnu-gcc -c -DPERL_CORE -O3 -pipe -march=native -fdiagnostics-color=always -Waddress -Warray-bounds -Wfree-nonheap-object -Wint-to-pointer-cast -Wmain -Wnonnull -Wodr -Wreturn-type -Wsizeof-pointer-memaccess -Wstrict-aliasing -Wstring-compare -Wuninitialized -Wvarargs -fno-strict-aliasing -DNO_PERL_RAND_SEED -fwrapv -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -std=c99 -O3 -pipe -march=native -fdiagnostics-color=always -Waddress -Warray-bounds -Wfree-nonheap-object -Wint-to-pointer-cast -Wmain -Wnonnull -Wodr -Wreturn-type -Wsizeof-pointer-memaccess -Wstrict-aliasing -Wstring-compare -Wuninitialized -Wvarargs -fno-strict-aliasing -Wall -Werror=pointer-arith -Werror=vla -Wextra -Wno-long-long -Wno-declaration-after-statement -Wc++-compat -Wwrite-strings -fPIC toke.c toke.c: In function ‘yyl_try’: toke.c:8984:1: error: definition in block 413 does not dominate use in block 420 8984 | yyl_try(pTHX_ char *s) | ^~~~~~~ for SSA_NAME: vect__256.7602_2087 in statement: vect__256.7602_2086 = PHI <vect__256.7602_2087(420)> PHI argument vect__256.7602_2087 for PHI node vect__256.7602_2086 = PHI <vect__256.7602_2087(420)> during GIMPLE pass: vect toke.c:8984:1: internal compiler error: verify_ssa failed 0x55bcb952ea88 verify_ssa(bool, bool) /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/tree-ssa.cc:1203 0x55bcb9130a9d execute_function_todo /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/passes.cc:2095 0x55bcb9130f30 execute_todo /usr/src/debug/sys-devel/gcc-14.0.0.9999/gcc-14.0.0.9999/gcc/passes.cc:2142 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. make: *** [makefile:260: toke.o] Error 1 ``` ``` Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/14/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-14.0.0.9999/work/gcc-14.0.0.9999/configure --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/14 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/14/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/14 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/14/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/14/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14 --disable-silent-rules --disable-dependency-tracking --with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/14/python --enable-languages=c,c++,fortran --enable-obsolete --enable-secureplt --disable-werror --with-system-zlib --enable-nls --without-included-gettext --disable-libunwind-exceptions --enable-checking=yes,extra,rtl,df --with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 14.0.0 p, commit 2250dc0cc8c46999ad1c1d79b9aeed9056459bb6' --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-libgomp --disable-libssp --disable-libada --disable-cet --disable-systemtap --disable-valgrind-annotations --disable-vtable-verify --disable-libvtv --with-zstd --without-isl --enable-default-pie --enable-host-pie --disable-host-bind-now --enable-default-ssp Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.0 20231225 (experimental) 0beeddd6b1b1cb41104c4df925323e8fc0437ba8 (Gentoo 14.0.0 p, commit 2250dc0cc8c46999ad1c1d79b9aeed9056459bb6) ``` 'gcc -c ./toke.i -O3 -march=znver2' is enough to reproduce.