https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97319
Bug ID: 97319
Summary: LTO profiledbootstrap (C/C++/Fotran only) fails with a
segfault in selftest
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: jamborm at gcc dot gnu.org
CC: hubicka at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux
Target: x86_64-linux
Since Honza's commit c33f4742393, attempting to LTO-profiledbootstrap
GCC, even when Ada is not enabled, fails in stageprofile with:
/home/mjambor/gcc/mine/b-obj/./gcc/xgcc -B/home/mjambor/gcc/mine/b-obj/./gcc/
-xc -nostdinc /dev/null -S -o /dev/null
-fself-test=/home/mjambor/gcc/mine/src/gcc/testsuite/selftests
In function ‘test_fn’:
cc1: internal compiler error: Segmentation fault
0x1770669 crash_signal
/home/mjambor/gcc/mine/src/gcc/toplev.c:329
0xd86637 purge_dead_edges(basic_block_def*)
/home/mjambor/gcc/mine/src/gcc/cfgrtl.c:3271
0x261dd78 find_bb_boundaries
/home/mjambor/gcc/mine/src/gcc/cfgbuild.c:589
0x261f76f find_many_sub_basic_blocks(simple_bitmap_def*)
/home/mjambor/gcc/mine/src/gcc/cfgbuild.c:672
0xd94a1a execute
/home/mjambor/gcc/mine/src/gcc/cfgexpand.c:6675
0x26dd277 test_expansion_to_rtl
/home/mjambor/gcc/mine/src/gcc/function-tests.c:609
0x26ddaad selftest::function_tests_c_tests()
/home/mjambor/gcc/mine/src/gcc/function-tests.c:691
0x295bd86 selftest::run_tests()
/home/mjambor/gcc/mine/src/gcc/selftest-run-tests.c:109
0x1774302 toplev::run_self_tests()
/home/mjambor/gcc/mine/src/gcc/toplev.c:2381
