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Rollup of 3 pull requests #72561

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Rollup of 3 pull requests #72561

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fbc6f2c
make some cast helpers infallible
RalfJung Apr 14, 2020
b97ed1a
Miri casts: do not blindly rely on dest type
RalfJung May 24, 2020
b9b1554
Fix unsizing casts
RalfJung May 24, 2020
be2fd61
Fix InlineAsmOperand expresions being visited twice during liveness c…
Amanieu May 24, 2020
7b98552
use helper method for determining size of int type
RalfJung May 24, 2020
8b5ba4a
comment nit
RalfJung May 24, 2020
c3edb15
librustc_middle: Rename upvars query to upvars_mentioned
arora-aman May 23, 2020
13d467b
Rollup merge of #72525 - RalfJung:miri-cast-checks, r=eddyb
RalfJung May 25, 2020
4edfaaf
Rollup merge of #72537 - Amanieu:fix-asm-liveness, r=petrochenkov
RalfJung May 25, 2020
23806b9
Rollup merge of #72544 - sexxi-goose:upvars_mentioned, r=matthewjasper
RalfJung May 25, 2020
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2 changes: 1 addition & 1 deletion src/librustc_middle/arena.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,7 @@ macro_rules! arena_types {
[few] privacy_access_levels: rustc_middle::middle::privacy::AccessLevels,
[few] foreign_module: rustc_middle::middle::cstore::ForeignModule,
[few] foreign_modules: Vec<rustc_middle::middle::cstore::ForeignModule>,
[] upvars: rustc_data_structures::fx::FxIndexMap<rustc_hir::HirId, rustc_hir::Upvar>,
[] upvars_mentioned: rustc_data_structures::fx::FxIndexMap<rustc_hir::HirId, rustc_hir::Upvar>,
[] object_safety_violations: rustc_middle::traits::ObjectSafetyViolation,
[] codegen_unit: rustc_middle::mir::mono::CodegenUnit<$tcx>,
[] attribute: rustc_ast::ast::Attribute,
Expand Down
4 changes: 2 additions & 2 deletions src/librustc_middle/mir/mod.rs
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Expand Up @@ -2439,7 +2439,7 @@ impl<'tcx> Debug for Rvalue<'tcx> {
};
let mut struct_fmt = fmt.debug_struct(&name);

if let Some(upvars) = tcx.upvars(def_id) {
if let Some(upvars) = tcx.upvars_mentioned(def_id) {
for (&var_id, place) in upvars.keys().zip(places) {
let var_name = tcx.hir().name(var_id);
struct_fmt.field(&var_name.as_str(), place);
Expand All @@ -2458,7 +2458,7 @@ impl<'tcx> Debug for Rvalue<'tcx> {
let name = format!("[generator@{:?}]", tcx.hir().span(hir_id));
let mut struct_fmt = fmt.debug_struct(&name);

if let Some(upvars) = tcx.upvars(def_id) {
if let Some(upvars) = tcx.upvars_mentioned(def_id) {
for (&var_id, place) in upvars.keys().zip(places) {
let var_name = tcx.hir().name(var_id);
struct_fmt.field(&var_name.as_str(), place);
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2 changes: 1 addition & 1 deletion src/librustc_middle/query/mod.rs
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Expand Up @@ -1040,7 +1040,7 @@ rustc_queries! {
desc { "generating a postorder list of CrateNums" }
}

query upvars(_: DefId) -> Option<&'tcx FxIndexMap<hir::HirId, hir::Upvar>> {
query upvars_mentioned(_: DefId) -> Option<&'tcx FxIndexMap<hir::HirId, hir::Upvar>> {
eval_always
}
query maybe_unused_trait_import(def_id: LocalDefId) -> bool {
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4 changes: 2 additions & 2 deletions src/librustc_middle/ty/print/pretty.rs
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Expand Up @@ -610,7 +610,7 @@ pub trait PrettyPrinter<'tcx>:
let mut sep = " ";
for (&var_id, upvar_ty) in self
.tcx()
.upvars(did)
.upvars_mentioned(did)
.as_ref()
.iter()
.flat_map(|v| v.keys())
Expand Down Expand Up @@ -659,7 +659,7 @@ pub trait PrettyPrinter<'tcx>:
let mut sep = " ";
for (&var_id, upvar_ty) in self
.tcx()
.upvars(did)
.upvars_mentioned(did)
.as_ref()
.iter()
.flat_map(|v| v.keys())
Expand Down
13 changes: 9 additions & 4 deletions src/librustc_mir/borrow_check/diagnostics/mod.rs
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Expand Up @@ -377,11 +377,16 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
self.describe_field_from_ty(&ty, field, variant_index)
}
ty::Closure(def_id, _) | ty::Generator(def_id, _, _) => {
// `tcx.upvars(def_id)` returns an `Option`, which is `None` in case
// `tcx.upvars_mentioned(def_id)` returns an `Option`, which is `None` in case
// the closure comes from another crate. But in that case we wouldn't
// be borrowck'ing it, so we can just unwrap:
let (&var_id, _) =
self.infcx.tcx.upvars(def_id).unwrap().get_index(field.index()).unwrap();
let (&var_id, _) = self
.infcx
.tcx
.upvars_mentioned(def_id)
.unwrap()
.get_index(field.index())
.unwrap();

self.infcx.tcx.hir().name(var_id).to_string()
}
Expand Down Expand Up @@ -809,7 +814,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
let expr = &self.infcx.tcx.hir().expect_expr(hir_id).kind;
debug!("closure_span: hir_id={:?} expr={:?}", hir_id, expr);
if let hir::ExprKind::Closure(.., body_id, args_span, _) = expr {
for (upvar, place) in self.infcx.tcx.upvars(def_id)?.values().zip(places) {
for (upvar, place) in self.infcx.tcx.upvars_mentioned(def_id)?.values().zip(places) {
match place {
Operand::Copy(place) | Operand::Move(place)
if target_place == place.as_ref() =>
Expand Down
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