Auto merge of #91945 - matthiaskrgr:rollup-jszf9zp, r=matthiaskrgr

Rollup of 7 pull requests

Successful merges:

 - #90939 (Tweak errors coming from `for`-loop, `?` and `.await` desugaring)
 - #91859 (Iterator::cycle() — document empty iterator special case)
 - #91868 (Use `OutputFilenames` to generate output file for `-Zllvm-time-trace`)
 - #91870 (Revert setting a default for the MACOSX_DEPLOYMENT_TARGET env var for linking)
 - #91881 (Stabilize `iter::zip`)
 - #91882 (Remove `in_band_lifetimes` from `rustc_typeck`)
 - #91940 (Update cargo)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Cargo.lock

@@ -276,7 +276,7 @@ dependencies = [
 
 [[package]]
 name = "cargo"
-version = "0.59.0"
+version = "0.60.0"
 dependencies = [
  "anyhow",
  "atty",
@@ -419,7 +419,7 @@ dependencies = [
 
 [[package]]
 name = "cargo-util"
-version = "0.1.1"
+version = "0.1.2"
 dependencies = [
  "anyhow",
  "core-foundation",
@@ -768,7 +768,7 @@ checksum = "8aebca1129a03dc6dc2b127edd729435bbc4a37e1d5f4d7513165089ceb02634"
 
 [[package]]
 name = "crates-io"
-version = "0.33.0"
+version = "0.33.1"
 dependencies = [
  "anyhow",
  "curl",

compiler/rustc_apfloat/src/lib.rs

@@ -33,7 +33,6 @@
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![no_std]
 #![forbid(unsafe_code)]
-#![feature(iter_zip)]
 #![feature(nll)]
 
 #[macro_use]

compiler/rustc_ast/src/lib.rs

@@ -11,7 +11,6 @@
 #![feature(box_patterns)]
 #![feature(crate_visibility_modifier)]
 #![feature(if_let_guard)]
-#![feature(iter_zip)]
 #![feature(label_break_value)]
 #![feature(nll)]
 #![feature(min_specialization)]

compiler/rustc_ast_lowering/src/expr.rs

@@ -130,7 +130,15 @@ impl<'hir> LoweringContext<'_, 'hir> {
                         hir::AsyncGeneratorKind::Block,
                         |this| this.with_new_scopes(|this| this.lower_block_expr(block)),
                     ),
-                ExprKind::Await(ref expr) => self.lower_expr_await(e.span, expr),
+                ExprKind::Await(ref expr) => {
+                    let span = if expr.span.hi() < e.span.hi() {
+                        expr.span.shrink_to_hi().with_hi(e.span.hi())
+                    } else {
+                        // this is a recovered `await expr`
+                        e.span
+                    };
+                    self.lower_expr_await(span, expr)
+                }
                 ExprKind::Closure(
                     capture_clause,
                     asyncness,
@@ -479,8 +487,12 @@ impl<'hir> LoweringContext<'_, 'hir> {
         expr: &'hir hir::Expr<'hir>,
         overall_span: Span,
     ) -> &'hir hir::Expr<'hir> {
-        let constructor =
-            self.arena.alloc(self.expr_lang_item_path(method_span, lang_item, ThinVec::new()));
+        let constructor = self.arena.alloc(self.expr_lang_item_path(
+            method_span,
+            lang_item,
+            ThinVec::new(),
+            None,
+        ));
         self.expr_call(overall_span, constructor, std::slice::from_ref(expr))
     }
 
@@ -584,8 +596,12 @@ impl<'hir> LoweringContext<'_, 'hir> {
         // `future::from_generator`:
         let unstable_span =
             self.mark_span_with_reason(DesugaringKind::Async, span, self.allow_gen_future.clone());
-        let gen_future =
-            self.expr_lang_item_path(unstable_span, hir::LangItem::FromGenerator, ThinVec::new());
+        let gen_future = self.expr_lang_item_path(
+            unstable_span,
+            hir::LangItem::FromGenerator,
+            ThinVec::new(),
+            None,
+        );
 
         // `future::from_generator(generator)`:
         hir::ExprKind::Call(self.arena.alloc(gen_future), arena_vec![self; generator])
@@ -607,6 +623,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
     /// }
     /// ```
     fn lower_expr_await(&mut self, await_span: Span, expr: &Expr) -> hir::ExprKind<'hir> {
+        let dot_await_span = expr.span.shrink_to_hi().to(await_span);
         match self.generator_kind {
             Some(hir::GeneratorKind::Async(_)) => {}
             Some(hir::GeneratorKind::Gen) | None => {
@@ -623,13 +640,14 @@ impl<'hir> LoweringContext<'_, 'hir> {
                 err.emit();
             }
         }
-        let span = self.mark_span_with_reason(DesugaringKind::Await, await_span, None);
+        let span = self.mark_span_with_reason(DesugaringKind::Await, dot_await_span, None);
         let gen_future_span = self.mark_span_with_reason(
             DesugaringKind::Await,
             await_span,
             self.allow_gen_future.clone(),
         );
         let expr = self.lower_expr_mut(expr);
+        let expr_hir_id = expr.hir_id;
 
         let pinned_ident = Ident::with_dummy_span(sym::pinned);
         let (pinned_pat, pinned_pat_hid) =
@@ -656,16 +674,19 @@ impl<'hir> LoweringContext<'_, 'hir> {
                 span,
                 hir::LangItem::PinNewUnchecked,
                 arena_vec![self; ref_mut_pinned],
+                Some(expr_hir_id),
             );
             let get_context = self.expr_call_lang_item_fn_mut(
                 gen_future_span,
                 hir::LangItem::GetContext,
                 arena_vec![self; task_context],
+                Some(expr_hir_id),
             );
             let call = self.expr_call_lang_item_fn(
                 span,
                 hir::LangItem::FuturePoll,
                 arena_vec![self; new_unchecked, get_context],
+                Some(expr_hir_id),
             );
             self.arena.alloc(self.expr_unsafe(call))
         };
@@ -678,18 +699,28 @@ impl<'hir> LoweringContext<'_, 'hir> {
             let (x_pat, x_pat_hid) = self.pat_ident(span, x_ident);
             let x_expr = self.expr_ident(span, x_ident, x_pat_hid);
             let ready_field = self.single_pat_field(span, x_pat);
-            let ready_pat = self.pat_lang_item_variant(span, hir::LangItem::PollReady, ready_field);
+            let ready_pat = self.pat_lang_item_variant(
+                span,
+                hir::LangItem::PollReady,
+                ready_field,
+                Some(expr_hir_id),
+            );
             let break_x = self.with_loop_scope(loop_node_id, move |this| {
                 let expr_break =
                     hir::ExprKind::Break(this.lower_loop_destination(None), Some(x_expr));
-                this.arena.alloc(this.expr(await_span, expr_break, ThinVec::new()))
+                this.arena.alloc(this.expr(span, expr_break, ThinVec::new()))
             });
             self.arm(ready_pat, break_x)
         };
 
         // `::std::task::Poll::Pending => {}`
         let pending_arm = {
-            let pending_pat = self.pat_lang_item_variant(span, hir::LangItem::PollPending, &[]);
+            let pending_pat = self.pat_lang_item_variant(
+                span,
+                hir::LangItem::PollPending,
+                &[],
+                Some(expr_hir_id),
+            );
             let empty_block = self.expr_block_empty(span);
             self.arm(pending_pat, empty_block)
         };
@@ -709,7 +740,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
             let unit = self.expr_unit(span);
             let yield_expr = self.expr(
                 span,
-                hir::ExprKind::Yield(unit, hir::YieldSource::Await { expr: Some(expr.hir_id) }),
+                hir::ExprKind::Yield(unit, hir::YieldSource::Await { expr: Some(expr_hir_id) }),
                 ThinVec::new(),
             );
             let yield_expr = self.arena.alloc(yield_expr);
@@ -756,6 +787,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
             into_future_span,
             hir::LangItem::IntoFutureIntoFuture,
             arena_vec![self; expr],
+            Some(expr_hir_id),
         );
 
         // match <into_future_expr> {
@@ -1160,7 +1192,8 @@ impl<'hir> LoweringContext<'_, 'hir> {
     fn lower_expr_range_closed(&mut self, span: Span, e1: &Expr, e2: &Expr) -> hir::ExprKind<'hir> {
         let e1 = self.lower_expr_mut(e1);
         let e2 = self.lower_expr_mut(e2);
-        let fn_path = hir::QPath::LangItem(hir::LangItem::RangeInclusiveNew, self.lower_span(span));
+        let fn_path =
+            hir::QPath::LangItem(hir::LangItem::RangeInclusiveNew, self.lower_span(span), None);
         let fn_expr =
             self.arena.alloc(self.expr(span, hir::ExprKind::Path(fn_path), ThinVec::new()));
         hir::ExprKind::Call(fn_expr, arena_vec![self; e1, e2])
@@ -1194,7 +1227,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
         );
 
         hir::ExprKind::Struct(
-            self.arena.alloc(hir::QPath::LangItem(lang_item, self.lower_span(span))),
+            self.arena.alloc(hir::QPath::LangItem(lang_item, self.lower_span(span), None)),
             fields,
             None,
         )
@@ -1389,6 +1422,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
                 head_span,
                 hir::LangItem::IteratorNext,
                 arena_vec![self; ref_mut_iter],
+                None,
             );
             let arms = arena_vec![self; none_arm, some_arm];
 
@@ -1417,6 +1451,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
                 head_span,
                 hir::LangItem::IntoIterIntoIter,
                 arena_vec![self; head],
+                None,
             )
         };
 
@@ -1472,6 +1507,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
                 unstable_span,
                 hir::LangItem::TryTraitBranch,
                 arena_vec![self; sub_expr],
+                None,
             )
         };
 
@@ -1628,8 +1664,10 @@ impl<'hir> LoweringContext<'_, 'hir> {
         span: Span,
         lang_item: hir::LangItem,
         args: &'hir [hir::Expr<'hir>],
+        hir_id: Option<hir::HirId>,
     ) -> hir::Expr<'hir> {
-        let path = self.arena.alloc(self.expr_lang_item_path(span, lang_item, ThinVec::new()));
+        let path =
+            self.arena.alloc(self.expr_lang_item_path(span, lang_item, ThinVec::new(), hir_id));
         self.expr_call_mut(span, path, args)
     }
 
@@ -1638,19 +1676,21 @@ impl<'hir> LoweringContext<'_, 'hir> {
         span: Span,
         lang_item: hir::LangItem,
         args: &'hir [hir::Expr<'hir>],
+        hir_id: Option<hir::HirId>,
     ) -> &'hir hir::Expr<'hir> {
-        self.arena.alloc(self.expr_call_lang_item_fn_mut(span, lang_item, args))
+        self.arena.alloc(self.expr_call_lang_item_fn_mut(span, lang_item, args, hir_id))
     }
 
     fn expr_lang_item_path(
         &mut self,
         span: Span,
         lang_item: hir::LangItem,
         attrs: AttrVec,
+        hir_id: Option<hir::HirId>,
     ) -> hir::Expr<'hir> {
         self.expr(
             span,
-            hir::ExprKind::Path(hir::QPath::LangItem(lang_item, self.lower_span(span))),
+            hir::ExprKind::Path(hir::QPath::LangItem(lang_item, self.lower_span(span), hir_id)),
             attrs,
         )
     }

compiler/rustc_ast_lowering/src/lib.rs

@@ -32,7 +32,6 @@
 
 #![feature(crate_visibility_modifier)]
 #![feature(box_patterns)]
-#![feature(iter_zip)]
 #![feature(never_type)]
 #![recursion_limit = "256"]
 
@@ -2127,21 +2126,21 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
 
     fn pat_cf_continue(&mut self, span: Span, pat: &'hir hir::Pat<'hir>) -> &'hir hir::Pat<'hir> {
         let field = self.single_pat_field(span, pat);
-        self.pat_lang_item_variant(span, hir::LangItem::ControlFlowContinue, field)
+        self.pat_lang_item_variant(span, hir::LangItem::ControlFlowContinue, field, None)
     }
 
     fn pat_cf_break(&mut self, span: Span, pat: &'hir hir::Pat<'hir>) -> &'hir hir::Pat<'hir> {
         let field = self.single_pat_field(span, pat);
-        self.pat_lang_item_variant(span, hir::LangItem::ControlFlowBreak, field)
+        self.pat_lang_item_variant(span, hir::LangItem::ControlFlowBreak, field, None)
     }
 
     fn pat_some(&mut self, span: Span, pat: &'hir hir::Pat<'hir>) -> &'hir hir::Pat<'hir> {
         let field = self.single_pat_field(span, pat);
-        self.pat_lang_item_variant(span, hir::LangItem::OptionSome, field)
+        self.pat_lang_item_variant(span, hir::LangItem::OptionSome, field, None)
     }
 
     fn pat_none(&mut self, span: Span) -> &'hir hir::Pat<'hir> {
-        self.pat_lang_item_variant(span, hir::LangItem::OptionNone, &[])
+        self.pat_lang_item_variant(span, hir::LangItem::OptionNone, &[], None)
     }
 
     fn single_pat_field(
@@ -2164,8 +2163,9 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
         span: Span,
         lang_item: hir::LangItem,
         fields: &'hir [hir::PatField<'hir>],
+        hir_id: Option<hir::HirId>,
     ) -> &'hir hir::Pat<'hir> {
-        let qpath = hir::QPath::LangItem(lang_item, self.lower_span(span));
+        let qpath = hir::QPath::LangItem(lang_item, self.lower_span(span), hir_id);
         self.pat(span, hir::PatKind::Struct(qpath, fields, false))
     }
 

compiler/rustc_borrowck/src/lib.rs

@@ -4,7 +4,6 @@
 #![feature(box_patterns)]
 #![feature(crate_visibility_modifier)]
 #![feature(in_band_lifetimes)]
-#![feature(iter_zip)]
 #![feature(let_else)]
 #![feature(min_specialization)]
 #![feature(stmt_expr_attributes)]

compiler/rustc_builtin_macros/src/lib.rs

@@ -6,7 +6,6 @@
 #![feature(bool_to_option)]
 #![feature(crate_visibility_modifier)]
 #![feature(decl_macro)]
-#![feature(iter_zip)]
 #![feature(nll)]
 #![feature(proc_macro_internals)]
 #![feature(proc_macro_quote)]

compiler/rustc_codegen_cranelift/src/lib.rs

@@ -205,6 +205,7 @@ impl CodegenBackend for CraneliftCodegenBackend {
         &self,
         ongoing_codegen: Box<dyn Any>,
         _sess: &Session,
+        _outputs: &OutputFilenames,
     ) -> Result<(CodegenResults, FxHashMap<WorkProductId, WorkProduct>), ErrorReported> {
         Ok(*ongoing_codegen
             .downcast::<(CodegenResults, FxHashMap<WorkProductId, WorkProduct>)>()

compiler/rustc_codegen_gcc/src/lib.rs

@@ -96,7 +96,7 @@ impl CodegenBackend for GccCodegenBackend {
         Box::new(res)
     }
 
-    fn join_codegen(&self, ongoing_codegen: Box<dyn Any>, sess: &Session) -> Result<(CodegenResults, FxHashMap<WorkProductId, WorkProduct>), ErrorReported> {
+    fn join_codegen(&self, ongoing_codegen: Box<dyn Any>, sess: &Session, _outputs: &OutputFilenames) -> Result<(CodegenResults, FxHashMap<WorkProductId, WorkProduct>), ErrorReported> {
         let (codegen_results, work_products) = ongoing_codegen
             .downcast::<rustc_codegen_ssa::back::write::OngoingCodegen<GccCodegenBackend>>()
             .expect("Expected GccCodegenBackend's OngoingCodegen, found Box<Any>")

compiler/rustc_codegen_llvm/src/lib.rs

@@ -9,7 +9,6 @@
 #![feature(crate_visibility_modifier)]
 #![feature(extern_types)]
 #![feature(in_band_lifetimes)]
-#![feature(iter_zip)]
 #![feature(nll)]
 #![recursion_limit = "256"]
 
@@ -339,6 +338,7 @@ impl CodegenBackend for LlvmCodegenBackend {
         &self,
         ongoing_codegen: Box<dyn Any>,
         sess: &Session,
+        outputs: &OutputFilenames,
     ) -> Result<(CodegenResults, FxHashMap<WorkProductId, WorkProduct>), ErrorReported> {
         let (codegen_results, work_products) = ongoing_codegen
             .downcast::<rustc_codegen_ssa::back::write::OngoingCodegen<LlvmCodegenBackend>>()
@@ -347,7 +347,8 @@ impl CodegenBackend for LlvmCodegenBackend {
 
         sess.time("llvm_dump_timing_file", || {
             if sess.opts.debugging_opts.llvm_time_trace {
-                llvm_util::time_trace_profiler_finish("llvm_timings.json");
+                let file_name = outputs.with_extension("llvm_timings.json");
+                llvm_util::time_trace_profiler_finish(&file_name);
             }
         });
 

compiler/rustc_codegen_llvm/src/llvm_util.rs

@@ -4,6 +4,7 @@ use libc::c_int;
 use libloading::Library;
 use rustc_codegen_ssa::target_features::supported_target_features;
 use rustc_data_structures::fx::FxHashSet;
+use rustc_fs_util::path_to_c_string;
 use rustc_middle::bug;
 use rustc_session::config::PrintRequest;
 use rustc_session::Session;
@@ -13,6 +14,7 @@ use std::ffi::{CStr, CString};
 use tracing::debug;
 
 use std::mem;
+use std::path::Path;
 use std::ptr;
 use std::slice;
 use std::str;
@@ -134,9 +136,9 @@ unsafe fn configure_llvm(sess: &Session) {
     llvm::LLVMRustSetLLVMOptions(llvm_args.len() as c_int, llvm_args.as_ptr());
 }
 
-pub fn time_trace_profiler_finish(file_name: &str) {
+pub fn time_trace_profiler_finish(file_name: &Path) {
     unsafe {
-        let file_name = CString::new(file_name).unwrap();
+        let file_name = path_to_c_string(file_name);
         llvm::LLVMTimeTraceProfilerFinish(file_name.as_ptr());
     }
 }