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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/102067] SEGFAULT in varpool_node::get_constructor during
 lto1 when optimising or not using debug symbols
Date: Wed, 25 Aug 2021 15:50:54 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102067

--- Comment #7 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
Hm, note the ccxjqZU1 file contains:

libwave_common.a@0x4307c
libwave_common.a@0x180314c

What does the syntax mean?

I can reproduce it locally with:

$ /dev/shm/objdir2/gcc/lto1 -quiet -fwpa libwave_common.a@0x4307c
libwave_common.a@0x180314c -fltrans-output-list=3Dgap_report.ltrans.out -O2
-fresolution=3Dlm.res
...
#0  0x0000000001310aa2 in varpool_node::get_constructor (this=3D0x7ffff639a=
b00)
at /home/marxin/Programming/gcc2/gcc/varpool.c:302
#1  0x0000000001c0e8f2 in ipa_icf::sem_variable::equals (this=3D0x2922fb0,
item=3D0x2928940) at /home/marxin/Programming/gcc2/gcc/ipa-icf.c:1845
#2  0x0000000001c119a5 in
ipa_icf::sem_item_optimizer::subdivide_classes_by_equality (this=3D0x28fcc1=
0,
in_wpa=3Dfalse) at /home/marxin/Programming/gcc2/gcc/ipa-icf.c:2817
#3  0x0000000001c10cba in ipa_icf::sem_item_optimizer::execute (this=3D0x28=
fcc10)
at /home/marxin/Programming/gcc2/gcc/ipa-icf.c:2578
#4  0x0000000001c14620 in ipa_icf::ipa_icf_driver () at
/home/marxin/Programming/gcc2/gcc/ipa-icf.c:3698
#5  0x0000000001c162e1 in ipa_icf::pass_ipa_icf::execute (this=3D0x281a780)=
 at
/home/marxin/Programming/gcc2/gcc/ipa-icf.c:3745
#6  0x0000000000dca608 in execute_one_pass (pass=3D0x281a780) at
/home/marxin/Programming/gcc2/gcc/passes.c:2508
#7  0x0000000000dcb490 in execute_ipa_pass_list (pass=3D0x281a780) at
/home/marxin/Programming/gcc2/gcc/passes.c:2925
#8  0x000000000086a95c in do_whole_program_analysis () at
/home/marxin/Programming/gcc2/gcc/lto/lto.c:3183
#9  0x000000000086add7 in lto_main () at
/home/marxin/Programming/gcc2/gcc/lto/lto.c:3408
#10 0x0000000000f1c482 in compile_file () at
/home/marxin/Programming/gcc2/gcc/toplev.c:456
#11 0x0000000000f1f08b in do_compile () at
/home/marxin/Programming/gcc2/gcc/toplev.c:2205
#12 0x0000000000f1f36e in toplev::main (this=3D0x7fffffffddfe, argc=3D8,
argv=3D0x7fffffffdf08) at /home/marxin/Programming/gcc2/gcc/toplev.c:2340
#13 0x0000000001cbd006 in main (argc=3D8, argv=3D0x7fffffffdf08) at
/home/marxin/Programming/gcc2/gcc/main.c:39=