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c79cee7136
__builtin_unreachable doesn't raise any compile-time warnings/errors on its own, so problems with its usage can't be easily detected. While it would be nice for this situation to change and compilers to at least add a warning for trivial cases where local state means the instruction can't be reached, this isn't the case at the moment and likely will not happen. This commit adds an __assert_unreachable, whose intent is incredibly clear: it asserts that this instruction is unreachable. On INVARIANTS builds, it's a panic(), and on non-INVARIANTS it expands to __unreachable(). Existing users of __unreachable() are converted to __assert_unreachable, to improve debuggability if this assumption is violated. Reviewed by: mjg Differential Revision: https://reviews.freebsd.org/D23793 |
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| .. | ||
| db_access.c | ||
| db_access.h | ||
| db_break.c | ||
| db_break.h | ||
| db_capture.c | ||
| db_command.c | ||
| db_command.h | ||
| db_examine.c | ||
| db_expr.c | ||
| db_input.c | ||
| db_lex.c | ||
| db_lex.h | ||
| db_main.c | ||
| db_output.c | ||
| db_output.h | ||
| db_print.c | ||
| db_ps.c | ||
| db_run.c | ||
| db_script.c | ||
| db_sym.c | ||
| db_sym.h | ||
| db_textdump.c | ||
| db_thread.c | ||
| db_variables.c | ||
| db_variables.h | ||
| db_watch.c | ||
| db_watch.h | ||
| db_write_cmd.c | ||
| ddb.h | ||