Auto merge of #2135 - RalfJung:rustup, r=RalfJung

rustup

rust-version

@@ -1 +1 @@
-f24ef2e296ec6fc6fd2e24d7e4bfec3f4cb0577a
+22ee39504a702f75485582d02060495a01254de1

src/machine.rs

@@ -470,7 +470,12 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for Evaluator<'mir, 'tcx> {
     }
 
     #[inline(always)]
-    fn enforce_number_validity(ecx: &MiriEvalContext<'mir, 'tcx>) -> bool {
+    fn enforce_number_init(ecx: &MiriEvalContext<'mir, 'tcx>) -> bool {
+        ecx.machine.enforce_number_validity
+    }
+
+    #[inline(always)]
+    fn enforce_number_no_provenance(ecx: &MiriEvalContext<'mir, 'tcx>) -> bool {
         ecx.machine.enforce_number_validity
     }
 

tests/compile-fail/ptr_integer_transmute.rs

@@ -2,5 +2,5 @@
 
 fn main() {
     let r = &mut 42;
-    let _i: usize = unsafe { std::mem::transmute(r) }; //~ ERROR expected initialized plain (non-pointer) bytes
+    let _i: usize = unsafe { std::mem::transmute(r) }; //~ ERROR expected plain (non-pointer) bytes
 }

tests/compile-fail/strict_provenance_transmute.rs

@@ -7,7 +7,7 @@ use std::mem;
 // <https://github.com/rust-lang/unsafe-code-guidelines/issues/286#issuecomment-1085144431>.
 
 unsafe fn deref(left: *const u8, right: *const u8) {
-    let left_int: usize = mem::transmute(left); //~ERROR expected initialized plain (non-pointer) bytes
+    let left_int: usize = mem::transmute(left); //~ERROR expected plain (non-pointer) bytes
     let right_int: usize = mem::transmute(right);
     if left_int == right_int {
         // The compiler is allowed to replace `left_int` by `right_int` here...

tests/compile-fail/uninit_float.rs

@@ -4,5 +4,5 @@
 
 fn main() {
     let _val = unsafe { std::mem::MaybeUninit::<f32>::uninit().assume_init() };
-    //~^ ERROR type validation failed at .value: encountered uninitialized bytes, but expected initialized plain (non-pointer) bytes
+    //~^ ERROR type validation failed at .value: encountered uninitialized bytes, but expected initialized bytes
 }

tests/compile-fail/uninit_integer.rs

@@ -4,5 +4,5 @@
 
 fn main() {
     let _val = unsafe { std::mem::MaybeUninit::<usize>::uninit().assume_init() };
-    //~^ ERROR type validation failed at .value: encountered uninitialized bytes, but expected initialized plain (non-pointer) bytes
+    //~^ ERROR type validation failed at .value: encountered uninitialized bytes, but expected initialized bytes
 }

tests/compile-fail/uninit_integer_signed.rs

@@ -4,5 +4,5 @@
 
 fn main() {
     let _val = unsafe { std::mem::MaybeUninit::<i32>::uninit().assume_init() };
-    //~^ ERROR type validation failed at .value: encountered uninitialized bytes, but expected initialized plain (non-pointer) bytes
+    //~^ ERROR type validation failed at .value: encountered uninitialized bytes, but expected initialized bytes
 }