no-stack-check

Author: klensy

compiler/rustc_driver_impl/src/lib.rs

@@ -1124,10 +1124,6 @@ pub fn describe_flag_categories(early_dcx: &EarlyDiagCtxt, matches: &Matches) ->
         return true;
     }
 
-    if cg_flags.iter().any(|x| *x == "no-stack-check") {
-        early_dcx.early_warn("the `-Cno-stack-check` flag is deprecated and does nothing");
-    }
-
     if cg_flags.iter().any(|x| *x == "passes=list") {
         let backend_name = debug_flags.iter().find_map(|x| x.strip_prefix("codegen-backend="));
 

compiler/rustc_session/src/options.rs

@@ -1624,7 +1624,8 @@ options! {
         "disable the use of the redzone"),
     #[rustc_lint_opt_deny_field_access("documented to do nothing")]
     no_stack_check: bool = (false, parse_no_value, [UNTRACKED],
-        "this option is deprecated and does nothing"),
+        "this option is deprecated and does nothing",
+        deprecated_do_nothing: true),
     no_vectorize_loops: bool = (false, parse_no_value, [TRACKED],
         "disable loop vectorization optimization passes"),
     no_vectorize_slp: bool = (false, parse_no_value, [TRACKED],

tests/ui/deprecation/deprecated_no_stack_check_opt.rs

@@ -0,0 +1,4 @@
+//@ check-pass
+//@ compile-flags: -Cno-stack-check
+
+fn main() {}

tests/ui/deprecation/deprecated_no_stack_check_opt.stderr

@@ -0,0 +1,2 @@
+warning: `-C no-stack-check`: this option is deprecated and does nothing
+