https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114232
Bug ID: 114232 Summary: [14 regression] ICE when building rr-5.7.0 with LTO on x86 Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: sjames at gcc dot gnu.org Target Milestone: --- Created attachment 57608 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57608&action=edit RecordSession.cc.ii.xz Hit this when building rr-5.7.0 with LTO on x86. ``` $ cat list.txt RecordSession.cc.ii Task.cc.ii TraceStream.cc.ii $ g++ -O3 -pipe -march=i686 -mfpmath=sse -msse -msse2 -fno-vect-cost-model -rdynamic -flto=auto @list.txt /var/tmp/portage/dev-util/rr-5.7.0/work/rr-5.7.0/src/TraceStream.cc: In member function ‘close’: /var/tmp/portage/dev-util/rr-5.7.0/work/rr-5.7.0/src/TraceStream.cc:1467:1: error: unrecognizable insn: 1467 | } | ^ (insn 160 159 161 26 (parallel [ (set (reg:V2QI 250 [ vect_patt_207.470_183 ]) (minus:V2QI (reg:V2QI 251) (reg:V2QI 249 [ vect__4.468_451 ]))) (clobber (reg:CC 17 flags)) ]) "/var/tmp/portage/dev-util/rr-5.7.0/work/rr-5.7.0/src/TraceStream.cc":254:16 -1 (nil)) during RTL pass: vregs /var/tmp/portage/dev-util/rr-5.7.0/work/rr-5.7.0/src/TraceStream.cc:1467:1: internal compiler error: in extract_insn, at recog.cc:2812 0x5799263a _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) /usr/src/debug/sys-devel/gcc-14.0.9999/gcc-14.0.9999/gcc/rtl-error.cc:108 0x579927e8 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) /usr/src/debug/sys-devel/gcc-14.0.9999/gcc-14.0.9999/gcc/rtl-error.cc:116 0x56eadade extract_insn(rtx_insn*) /usr/src/debug/sys-devel/gcc-14.0.9999/gcc-14.0.9999/gcc/recog.cc:2812 0x58ac1379 instantiate_virtual_regs_in_insn /usr/src/debug/sys-devel/gcc-14.0.9999/gcc-14.0.9999/gcc/function.cc:1611 0x58ac1379 instantiate_virtual_regs /usr/src/debug/sys-devel/gcc-14.0.9999/gcc-14.0.9999/gcc/function.cc:1994 0x58ac1379 execute /usr/src/debug/sys-devel/gcc-14.0.9999/gcc-14.0.9999/gcc/function.cc:2041 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: *** [/tmp/ccCI1g9e.mk:17: /tmp/ccZVEvZf.ltrans5.ltrans.o] Error 1 lto-wrapper: fatal error: make returned 2 exit status compilation terminated. /usr/lib/gcc/i686-pc-linux-gnu/14/../../../../i686-pc-linux-gnu/bin/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/i686-pc-linux-gnu/14/lto-wrapper Target: i686-pc-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-14.0.9999/work/gcc-14.0.9999/configure --host=i686-pc-linux-gnu --build=i686-pc-linux-gnu --prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/14 --includedir=/usr/lib/gcc/i686-pc-linux-gnu/14/include --datadir=/usr/share/gcc-data/i686-pc-linux-gnu/14 --mandir=/usr/share/gcc-data/i686-pc-linux-gnu/14/man --infodir=/usr/share/gcc-data/i686-pc-linux-gnu/14/info --with-gxx-include-dir=/usr/lib/gcc/i686-pc-linux-gnu/14/include/g++-v14 --disable-silent-rules --disable-dependency-tracking --with-python-dir=/share/gcc-data/i686-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 14.0.9999 p, commit c8305c9bdf09abe3e2f89783fe62f2e4049468fa' --with-gcc-major-version-only --enable-libstdcxx-time --enable-lto --disable-libstdcxx-pch --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --disable-multilib --disable-fixed-point --with-arch=i686 --enable-targets=all --enable-libgomp --disable-libssp --disable-libada --disable-cet --disable-systemtap --enable-valgrind-annotations --disable-vtable-verify --disable-libvtv --with-zstd --without-isl --enable-default-pie --enable-host-pie --disable-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 14.0.1 20240304 (experimental) a89c5df317d1de74871e2a05c36aed9cbbb21f42 (Gentoo 14.0.9999 p, commit c8305c9bdf09abe3e2f89783fe62f2e4049468fa) ```