Auto merge of #52958 - pietroalbini:rollup, r=pietroalbini

Rollup of 15 pull requests

Successful merges:

 - #52793 (Add test for NLL: unexpected "free region `` does not outlive" error )
 - #52799 (Use BitVector for global sets of AttrId)
 - #52809 (Add test for unexpected region for local data ReStatic)
 - #52834 ([NLL] Allow conflicting borrows of promoted length zero arrays)
 - #52835 (Fix Alias intra doc ICE)
 - #52854 (fix memrchr in miri)
 - #52899 (tests/ui: Add missing mips{64} ignores)
 - #52908 (Use SetLenOnDrop in Vec::truncate())
 - #52915 (Don't count MIR locals as borrowed after StorageDead when finding locals live across a yield terminator)
 - #52926 (rustc: Trim down the `rust_2018_idioms` lint group)
 - #52930 (rustc_resolve: record single-segment extern crate import resolutions.)
 - #52939 (Make io::Read::read_to_end consider io::Take::limit)
 - #52942 (Another SmallVec.extend optimization)
 - #52947 (1.27 actually added the `armv5te-unknown-linux-musleabi` target)
 - #52954 (async can begin expressions)

Failed merges:

r? @ghost

3 files changed, 10 insertions, 10 deletions

diff --git a/src/librustc_codegen_llvm/debuginfo/create_scope_map.rs b/src/librustc_codegen_llvm/debuginfo/create_scope_map.rs
index 5273032f2d7..a76f1d50fa7 100644
--- a/src/librustc_codegen_llvm/debuginfo/create_scope_map.rs
+++ b/src/librustc_codegen_llvm/debuginfo/create_scope_map.rs
@@ -21,7 +21,7 @@ use libc::c_uint;
 
 use syntax_pos::Pos;
 
-use rustc_data_structures::bitvec::BitVector;
+use rustc_data_structures::bitvec::BitArray;
 use rustc_data_structures::indexed_vec::{Idx, IndexVec};
 
 use syntax_pos::BytePos;
@@ -64,7 +64,7 @@ pub fn create_mir_scopes(
     };
 
     // Find all the scopes with variables defined in them.
-    let mut has_variables = BitVector::new(mir.source_scopes.len());
+    let mut has_variables = BitArray::new(mir.source_scopes.len());
     for var in mir.vars_iter() {
         let decl = &mir.local_decls[var];
         has_variables.insert(decl.visibility_scope);
@@ -81,7 +81,7 @@ pub fn create_mir_scopes(
 
 fn make_mir_scope(cx: &CodegenCx<'ll, '_>,
                   mir: &Mir,
-                  has_variables: &BitVector<SourceScope>,
+                  has_variables: &BitArray<SourceScope>,
                   debug_context: &FunctionDebugContextData<'ll>,
                   scope: SourceScope,
                   scopes: &mut IndexVec<SourceScope, MirDebugScope<'ll>>) {
diff --git a/src/librustc_codegen_llvm/mir/analyze.rs b/src/librustc_codegen_llvm/mir/analyze.rs
index 2c205803524..993138aee1c 100644
--- a/src/librustc_codegen_llvm/mir/analyze.rs
+++ b/src/librustc_codegen_llvm/mir/analyze.rs
@@ -11,7 +11,7 @@
 //! An analysis to determine which locals require allocas and
 //! which do not.
 
-use rustc_data_structures::bitvec::BitVector;
+use rustc_data_structures::bitvec::BitArray;
 use rustc_data_structures::graph::dominators::Dominators;
 use rustc_data_structures::indexed_vec::{Idx, IndexVec};
 use rustc::mir::{self, Location, TerminatorKind};
@@ -22,7 +22,7 @@ use rustc::ty::layout::LayoutOf;
 use type_of::LayoutLlvmExt;
 use super::FunctionCx;
 
-pub fn non_ssa_locals(fx: &FunctionCx<'a, 'll, 'tcx>) -> BitVector<mir::Local> {
+pub fn non_ssa_locals(fx: &FunctionCx<'a, 'll, 'tcx>) -> BitArray<mir::Local> {
     let mir = fx.mir;
     let mut analyzer = LocalAnalyzer::new(fx);
 
@@ -54,7 +54,7 @@ pub fn non_ssa_locals(fx: &FunctionCx<'a, 'll, 'tcx>) -> BitVector<mir::Local> {
 struct LocalAnalyzer<'mir, 'a: 'mir, 'll: 'a, 'tcx: 'll> {
     fx: &'mir FunctionCx<'a, 'll, 'tcx>,
     dominators: Dominators<mir::BasicBlock>,
-    non_ssa_locals: BitVector<mir::Local>,
+    non_ssa_locals: BitArray<mir::Local>,
     // The location of the first visited direct assignment to each
     // local, or an invalid location (out of bounds `block` index).
     first_assignment: IndexVec<mir::Local, Location>
@@ -67,7 +67,7 @@ impl LocalAnalyzer<'mir, 'a, 'll, 'tcx> {
         let mut analyzer = LocalAnalyzer {
             fx,
             dominators: fx.mir.dominators(),
-            non_ssa_locals: BitVector::new(fx.mir.local_decls.len()),
+            non_ssa_locals: BitArray::new(fx.mir.local_decls.len()),
             first_assignment: IndexVec::from_elem(invalid_location, &fx.mir.local_decls)
         };
 
diff --git a/src/librustc_codegen_llvm/mir/mod.rs b/src/librustc_codegen_llvm/mir/mod.rs
index 8cdd0398eff..a099cb5c64b 100644
--- a/src/librustc_codegen_llvm/mir/mod.rs
+++ b/src/librustc_codegen_llvm/mir/mod.rs
@@ -31,7 +31,7 @@ use syntax::symbol::keywords;
 
 use std::iter;
 
-use rustc_data_structures::bitvec::BitVector;
+use rustc_data_structures::bitvec::BitArray;
 use rustc_data_structures::indexed_vec::{IndexVec, Idx};
 
 pub use self::constant::codegen_static_initializer;
@@ -323,7 +323,7 @@ pub fn codegen_mir(
     debuginfo::start_emitting_source_locations(&fx.debug_context);
 
     let rpo = traversal::reverse_postorder(&mir);
-    let mut visited = BitVector::new(mir.basic_blocks().len());
+    let mut visited = BitArray::new(mir.basic_blocks().len());
 
     // Codegen the body of each block using reverse postorder
     for (bb, _) in rpo {
@@ -417,7 +417,7 @@ fn arg_local_refs(
     bx: &Builder<'a, 'll, 'tcx>,
     fx: &FunctionCx<'a, 'll, 'tcx>,
     scopes: &IndexVec<mir::SourceScope, debuginfo::MirDebugScope<'ll>>,
-    memory_locals: &BitVector<mir::Local>,
+    memory_locals: &BitArray<mir::Local>,
 ) -> Vec<LocalRef<'ll, 'tcx>> {
     let mir = fx.mir;
     let tcx = bx.tcx();