https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105853
Bug ID: 105853 Summary: ice in pieces_addr constructor Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Target Milestone: --- Created attachment 53086 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53086&action=edit C source code The attached C code does this: $ ../results/bin/gcc -c -w -march=bdver2 bug818.c during RTL pass: expand lib/packets.c: In function ‘compose_nd_ns’: lib/packets.c:1701:5: internal compiler error: Segmentation fault 0xdad1c9 crash_signal(int) /home/dcb/gcc/working/gcc/../../trunk.git/gcc/toplev.cc:322 0x955a4d pieces_addr::pieces_addr(rtx_def*, bool, rtx_def* (*)(void*, void*, long, fixed_size_mode), void*) /home/dcb/gcc/working/gcc/../../trunk.git/gcc/expr.cc:996 0x955a4d op_by_pieces_d::op_by_pieces_d(unsigned int, rtx_def*, bool, rtx_def*, bool, rtx_def* (*)(void*, void*, l ong, fixed_size_mode), void*, unsigned long, unsigned int, bool, bool) /home/dcb/gcc/working/gcc/../../trunk.git/gcc/expr.cc:1174 The code seems to break sometime between git hash 919822adc923b00e and aec868578d851576. I will have my usual go at reducing the code.