remove and bless

Author: ouz-a

compiler/rustc_middle/src/mir/mod.rs

@@ -1180,10 +1180,6 @@ impl<'tcx> LocalDecl<'tcx> {
         }
     }
 
-    pub fn temp(mut self) {
-        self.local_info = Some(Box::new(LocalInfo::Temp));
-    }
-
     /// Converts `self` into same `LocalDecl` except tagged as internal.
     #[inline]
     pub fn internal(mut self) -> Self {

compiler/rustc_mir_transform/src/add_retag.rs

@@ -59,8 +59,8 @@ fn may_be_reference(ty: Ty<'_>) -> bool {
 
 /// Determines whether or not this LocalDecl is temp, if not it needs retagging.
 fn is_not_temp<'tcx>(local_decl: &LocalDecl<'tcx>) -> bool {
-    if local_decl.local_info.is_some() {
-        match local_decl.local_info.as_ref().unwrap().as_ref() {
+    if let Some(local_info) = &local_decl.local_info {
+        match local_info.as_ref() {
             LocalInfo::Temp => return false,
             _ => (),
         };

src/test/run-make/const_fn_mir/dump.mir

@@ -23,10 +23,6 @@ fn foo() -> i32 {
         _0 = move (_1.0: i32);           // scope 0 at main.rs:5:5: 5:10
         return;                          // scope 0 at main.rs:6:2: 6:2
     }
-
-    bb2 (cleanup): {
-        resume;                          // scope 0 at main.rs:4:1: 6:2
-    }
 }
 
 fn main() -> () {