https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106702
Bug ID: 106702
Summary: ICE with LTO: internal compiler error: tree code
‘c_maybe_const_expr’ is not supported in LTO streams
Product: gcc
Version: 11.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: muecker at gwdg dot de
CC: marxin at gcc dot gnu.org
Target Milestone: ---
I get this with 11.3.0 but not with 12.
https://godbolt.org/z/6Esa3jhh9
$ gcc-11 --version
gcc-11 (Debian 11.3.0-5) 11.3.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ cat test.c
extern void bar(int M, int N, float S[(N > M) ? M : N]);
void foo(int M, int N)
{
bar(M, N, 0);
}
$ gcc-11 -I ../src/ -flto test.c
during IPA pass: modref
test.c:8:1: internal compiler error: tree code ‘c_maybe_const_expr’ is not
supported in LTO streams
8 | }
| ^
0x7fa316e01209 __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
0x7fa316e012bb __libc_start_main_impl
../csu/libc-start.c:389
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-11/README.Bugs> for instructions.
