[Bug bootstrap/68708] New: [6 Regression] profiledbootstrap failure with --with-build-config=bootstrap-lto

["hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68708

            Bug ID: 68708
           Summary: [6 Regression] profiledbootstrap failure with
                    --with-build-config=bootstrap-lto
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---

On Linux/x86-64, r231293 gave

lto1: internal compiler error: Segmentation fault
0xe051b1 crash_signal
        ../../src-trunk/gcc/toplev.c:334
0x1a2aef9 ipa_icf::sem_function::merge(ipa_icf::sem_item*)
        ../../src-trunk/gcc/ipa-icf.c:1362
0x1a25d40 ipa_icf::sem_item_optimizer::merge_classes(unsigned int)
        ../../src-trunk/gcc/ipa-icf.c:3434
0x1a38af1 ipa_icf::sem_item_optimizer::execute()
        ../../src-trunk/gcc/ipa-icf.c:2616
0x1a3ea5c ipa_icf_driver
        ../../src-trunk/gcc/ipa-icf.c:3511
0x1a3ea5c ipa_icf::pass_ipa_icf::execute(function*)
        ../../src-trunk/gcc/ipa-icf.c:3558
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with preprocessed source if appropriate.
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lto-wrapper: fatal error:
/export/gnu/import/git/gcc-test-profiled/bld/./prev-gcc/xg++ returned 1 exit
status
compilation terminated.
/usr/local/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status
../../src-trunk/gcc/cp/Make-lang.in:100: recipe for target 'cc1plus' failed
make[6]: *** [cc1plus] Error 1
rm fsf-funding.pod grmic.pod gcov.pod gc-analyze.pod cpp.pod gfdl.pod gpl.pod
gfortran.pod gcc.pod gcj-dbtool.pod gij.pod jcf-dump.pod gcj.pod jv-convert.pod
gcov-tool.pod
make[6]: Leaving directory '/export/gnu/import/git/gcc-test-profiled/bld/gcc'
Makefile:4583: recipe for target 'all-stagefeedback-gcc' failed
make[5]: *** [all-stagefeedback-gcc] Error 2
make[5]: Leaving directory '/export/gnu/import/git/gcc-test-profiled/bld'
Makefile:23748: recipe for target 'stagefeedback-bubble' failed
make[4]: *** [stagefeedback-bubble] Error 2
make[4]: Leaving directory '/export/gnu/import/git/gcc-test-profiled/bld'
Makefile:23767: recipe for target 'profiledbootstrap' failed
make[3]: *** [profiledbootstrap] Error 2
make[3]: Leaving directory '/export/gnu/import/git/gcc-test-profiled/bld'
27304.83user 544.21system 1:26:01elapsed 539%CPU (0avgtext+0avgdata
918848maxresident)k
1088472inputs+25594112outputs (11632major+144584839minor)pagefaults 0swaps
Makefile:291: recipe for target 'profiledbootstrap' failed
make[2]: *** [profiledbootstrap] Error 2

when configured with

--prefix=/usr/6.0.0 --enable-clocale=gnu --with-system-zlib --enable-shared
--with-demangler-in-ld --enable-libmpx --with-build-config=bootstrap-lto
--disable-werror --with-fpmath=sse
--enable-languages=c,c++,fortran,java,lto,objc

and built with

make -j 8 profiledbootstrap