https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107845
Bug ID: 107845 Summary: __builtin_init_trampoline ICEs on invalid arguments Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: gabravier at gmail dot com Target Milestone: --- void f() { __builtin_init_trampoline(0, 0, 0); } This crashes GCC with the following error: during RTL pass: expand <source>: In function 'f': <source>:3:5: internal compiler error: in expand_builtin_init_trampoline, at builtins.cc:5683 3 | __builtin_init_trampoline(0, 0, 0); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 0x2008dee internal_error(char const*, ...) ???:0 0x95c468 fancy_abort(char const*, int, char const*) ???:0 0xac9c55 expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int) ???:0 0xc1031c expand_expr_real_1(tree_node*, rtx_def*, machine_mode, expand_modifier, rtx_def**, 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 It looks like `expand_builtin_init_trampoline` just uses `gcc_assert` to check its arguments instead of the proper error handling other builtins do