https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121131
Bug ID: 121131 Summary: ICE at O2: in as_a, at machmode.h:391 Product: gcc Version: 15.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: bic60176 at gmail dot com Target Milestone: --- Created attachment 61889 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61889&action=edit testcase Compiler Explorer: https://godbolt.org/z/xP3qq1bx6 console: during GIMPLE pass: fre <source>: In function 'main': <source>:24:5: internal compiler error: in as_a, at machmode.h:391 24 | int main() { | ^~~~ 0x253f0d5 diagnostic_context::diagnostic_impl(rich_location*, diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag (*) [1], diagnostic_t) ???:0 0x2560db6 internal_error(char const*, ...) ???:0 0xa02454 fancy_abort(char const*, int, char const*) ???:0 0xdc027a fold_ctor_reference(tree_node*, tree_node*, poly_int<1u, unsigned long> const&, poly_int<1u, unsigned long> const&, tree_node*, unsigned long*) ???:0 0x13c59f9 fully_constant_vn_reference_p(vn_reference_s*) ???:0 0x12cfa88 walk_non_aliased_vuses(ao_ref*, tree_node*, bool, void* (*)(ao_ref*, tree_node*, void*), void* (*)(ao_ref*, tree_node*, void*, translate_flags*), tree_node* (*)(tree_node*), unsigned int&, void*) ???:0 0x13d330b vn_reference_lookup(tree_node*, tree_node*, vn_lookup_kind, vn_reference_s**, bool, tree_node**, tree_node*, bool) ???:0 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. Compiler returned: 1