https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119206
Bug ID: 119206 Summary: Internal compiler error when processing a va_arg expression Product: gcc Version: 15.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: bic60176 at gmail dot com Target Milestone: --- Created attachment 60702 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60702&action=edit testcase Compiler Explorer: https://godbolt.org/z/GvhsqeGTq Console: In file included from <source>:1: <source>: In function 'f': <source>:9:18: internal compiler error: in force_constant_size, at gimplify.cc:802 9 | p = va_arg(ap, int(*[++i])); | ^~~ 0x25f8a85 diagnostic_context::diagnostic_impl(rich_location*, diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag (*) [1], diagnostic_t) ???:0 0x260fa56 internal_error(char const*, ...) ???:0 0x9eaa94 fancy_abort(char const*, int, char const*) ???:0 0xde1997 gimple_add_tmp_var(tree_node*) ???:0 0xd8a75b create_tmp_var(tree_node*, char const*) ???:0 0xdeabdb gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) ???:0 0xdeca1c gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) ???:0 0xdeb4f2 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) ???:0 0xdeee5a gimplify_stmt(tree_node**, gimple**) ???:0 0xdec34b gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) ???:0 0xdeee5a gimplify_stmt(tree_node**, gimple**) ???:0 0xdecc9c gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) ???:0 0xdf51a6 gimplify_body(tree_node*, bool) ???:0 0xdf566c gimplify_function_tree(tree_node*) ???:0 0xc08a07 cgraph_node::analyze() ???:0 0xc0bd81 symbol_table::finalize_compilation_unit() ???: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