https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81612
Bug ID: 81612
Summary: lto1: internal compiler error: Segmentation fault
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: vctrex at mailfence dot com
CC: marxin at gcc dot gnu.org
Target Milestone: ---
With avr-gcc-6.3.0_1 compiling anything with Serial.begin() results an error.
Arduino:1.8.3 (Linux)
lto1: internal compiler error: Segmentation fault
0x8b64df crash_signal
../../gcc/toplev.c:333
0x7f4f10c34a8f ???
/builddir/glibc-2.25/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7428b6 maybe_record_node
../../gcc/ipa-devirt.c:2468
0x747245 possible_polymorphic_call_targets(tree_node*, long,
ipa_polymorphic_call_context, bool*, void**, bool)
../../gcc/ipa-devirt.c:3186
0x747d0e possible_polymorphic_call_targets(cgraph_edge*, bool*, void**, bool)
../../gcc/ipa-utils.h:115
0x747d0e ipa_devirt
../../gcc/ipa-devirt.c:3597
0x747d0e execute
../../gcc/ipa-devirt.c:3913
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lto-wrapper: fatal error: /usr/bin/avr-gcc returned 1 exit status
compilation terminated.
/usr/bin/avr-ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status
exit status 1
