compiler: use addr_of!

Author: GrigorenkoPV

compiler/rustc_codegen_llvm/src/back/archive.rs

@@ -313,7 +313,7 @@ fn get_llvm_object_symbols(
  llvm::LLVMRustGetSymbols(
  buf.as_ptr(),
  buf.len(),
-&mut*stateas*mut&mut_as*mutc_void,
+std::ptr::addr_of_mut!(*state)as*mutc_void,
  callback,
  error_callback,
 )

compiler/rustc_codegen_llvm/src/lib.rs

@@ -169,7 +169,7 @@ impl WriteBackendMethods for LlvmCodegenBackend {
 fnprint_pass_timings(&self){
 unsafe{
 letmut size = 0;
-let cstr = llvm::LLVMRustPrintPassTimings(&mutsizeas*mutusize);
+let cstr = llvm::LLVMRustPrintPassTimings(std::ptr::addr_of_mut!(size));
 if cstr.is_null(){
 println!("failed to get pass timings");
 }else{
@@ -182,7 +182,7 @@ impl WriteBackendMethods for LlvmCodegenBackend {
 fnprint_statistics(&self){
 unsafe{
 letmut size = 0;
-let cstr = llvm::LLVMRustPrintStatistics(&mutsizeas*mutusize);
+let cstr = llvm::LLVMRustPrintStatistics(std::ptr::addr_of_mut!(size));
 if cstr.is_null(){
 println!("failed to get pass stats");
 }else{

compiler/rustc_codegen_llvm/src/llvm_util.rs

@@ -435,7 +435,7 @@ pub(crate) fn print(req: &PrintRequest, mut out: &mut dyn PrintBackendInfo, sess
 &tm,
  cpu_cstring.as_ptr(),
  callback,
-&mutoutas*mut&mutdynPrintBackendInfoas*mutc_void,
+std::ptr::addr_of_mut!(out)as*mutc_void,
 );
 }
 }

compiler/rustc_data_structures/src/sync.rs

@@ -429,7 +429,7 @@ impl<T> RwLock<T> {
 #[inline(always)]
 pubfnleak(&self) -> &T{
 let guard = self.read();
-let ret = unsafe{&*(&*guardas*constT)};
+let ret = unsafe{&*std::ptr::addr_of!(*guard)};
  std::mem::forget(guard);
  ret
 }

compiler/rustc_middle/src/query/on_disk_cache.rs

@@ -233,7 +233,7 @@ impl<'sess> OnDiskCache<'sess> {
 
 for(index, file)in files.iter().enumerate(){
 let index = SourceFileIndex(index asu32);
-let file_ptr:*constSourceFile = &**fileas*const_;
+let file_ptr:*constSourceFile = std::ptr::addr_of!(**file);
  file_to_file_index.insert(file_ptr, index);
 let source_file_id = EncodedSourceFileId::new(tcx, file);
  file_index_to_stable_id.insert(index, source_file_id);
@@ -835,7 +835,7 @@ pub struct CacheEncoder<'a, 'tcx> {
 impl<'a,'tcx>CacheEncoder<'a,'tcx>{
 #[inline]
 fnsource_file_index(&mutself,source_file:Lrc<SourceFile>) -> SourceFileIndex{
-self.file_to_file_index[&(&*source_fileas*constSourceFile)]
+self.file_to_file_index[&std::ptr::addr_of!(*source_file)]
 }
 
 /// Encode something with additional information that allows to do some

compiler/rustc_middle/src/ty/list.rs

@@ -61,7 +61,7 @@ impl<T> List<T> {
 // length) that is 64-byte aligned, thus featuring the necessary
 // trailing padding for elements with up to 64-byte alignment.
 staticEMPTY_SLICE:InOrder<usize,MaxAlign> = InOrder(0,MaxAlign);
-unsafe{&*(&EMPTY_SLICEas*const_as*constList<T>)}
+unsafe{&*(std::ptr::addr_of!(EMPTY_SLICE)as*constList<T>)}
 }
 
 pubfnlen(&self) -> usize{

compiler/stable_mir/src/compiler_interface.rs

@@ -208,7 +208,7 @@ where
 ifTLV.is_set(){
 Err(Error::from("StableMIR already running"))
 }else{
-let ptr:*const() = &contextas*const&_as_;
+let ptr:*const() = std::ptr::addr_of!(context)as_;
 TLV.set(&Cell::new(ptr), || Ok(f()))
 }
 }