https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105597
Bug ID: 105597 Summary: ice in type, at value-range.h:223 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 52972 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52972&action=edit C source code For the attached C code, recent gcc trunk with flag -O2 does this: during GIMPLE pass: vrp mgpswindows.c: In function 'mgps_initpsdevice': mgpswindows.c:48:5: internal compiler error: in type, at value-range.h:223 48 | int mgps_initpsdevice() | ^~~~~~~~~~~~~~~~~ 0x1c9b178 irange::type() const ../../trunk.git/gcc/value-range.h:223 0x1c9b178 operator_minus::lhs_op1_relation(irange const&, irange const&, irange const&, tree_code) const /home/dcb/gcc/working/gcc/../../trunk.git/gcc/range-op.cc:1349 I will have my usual go at reducing the code and finding a range of git hashes where the problem starts.