[Bug bootstrap/80978] New: [8 Regression] LTO/PGO bootstrap broken by r248863

["trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80978

            Bug ID: 80978
           Summary: [8 Regression] LTO/PGO bootstrap broken by r248863
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
                CC: hubicka at ucw dot cz
  Target Milestone: ---

Since r248863:

/home/trippels/gcc_build_dir_/./prev-gcc/xg++
-B/home/trippels/gcc_build_dir_/./prev-gcc/
-B/usr/local/powerpc64le-unknown-linux-gnu/bin/ -nostdinc++
-B/home/trippels/gcc_build_dir_/prev-powerpc64le-unknown-linux-gnu/libstdc++-v3/src/.libs
-B/home/trippels/gcc_build_dir_/prev-powerpc64le-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs

-I/home/trippels/gcc_build_dir_/prev-powerpc64le-unknown-linux-gnu/libstdc++-v3/include/powerpc64le-unknown-linux-gnu

-I/home/trippels/gcc_build_dir_/prev-powerpc64le-unknown-linux-gnu/libstdc++-v3/include
 -I/home/trippels/gcc/libstdc++-v3/libsupc++
-L/home/trippels/gcc_build_dir_/prev-powerpc64le-unknown-linux-gnu/libstdc++-v3/src/.libs
-L/home/trippels/gcc_build_dir_/prev-powerpc64le-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
-no-pie   -g -O2 -flto=jobserver -frandom-seed=1 -fprofile-use -DIN_GCC    
-fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing
-Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
-fno-common  -DHAVE_CONFIG_H -static-libstdc++ -static-libgcc  -o gengtype \
    gengtype.o gengtype-lex.o gengtype-parse.o gengtype-state.o version.o
errors.o libcommon.a ../libcpp/libcpp.a ../libiberty/libiberty.a
../libdecnumber/libdecnumber.a ../libbacktrace/.libs/libbacktrace.a libcommon.a
../libcpp/libcpp.a   ../libbacktrace/.libs/libbacktrace.a
../libiberty/libiberty.a ../libdecnumber/libdecnumber.a 
during IPA pass: inline
lto1: internal compiler error: in to_gcov_type, at profile-count.h:108
0x11f3019b profile_count::to_gcov_type() const
        ../../gcc/gcc/profile-count.h:108
0x11f3019b want_inline_self_recursive_call_p
        ../../gcc/gcc/ipa-inline.c:916
0x11f3c3db recursive_inlining
        ../../gcc/gcc/ipa-inline.c:1508
0x11f3c3db inline_small_functions
        ../../gcc/gcc/ipa-inline.c:1973
0x11f3c3db ipa_inline
        ../../gcc/gcc/ipa-inline.c:2433
0x11f3c3db execute
        ../../gcc/gcc/ipa-inline.c:2839

See also https://gcc.gnu.org/ml/gcc-regression/2017-06/msg00018.html