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bors d8fc819247 Auto merge of #109466 - davidlattimore:inline-arg-via-var-debug-info, r=wesleywiser 
Preserve argument indexes when inlining MIR

We store argument indexes on VarDebugInfo. Unlike the previous method of relying on the variable index to know whether a variable is an argument, this survives MIR inlining.

We also no longer check if var.source_info.scope is the outermost scope. When a function gets inlined, the arguments to the inner function will no longer be in the outermost scope. What we care about though is whether they were in the outermost scope prior to inlining, which we know by whether we assigned an argument index.

Fixes #83217

I considered using `Option<NonZeroU16>` instead of `Option<u16>` to store the index. I didn't because `TypeFoldable` isn't implemented for `NonZeroU16` and because it looks like due to padding, it currently wouldn't make any difference. But I indexed from 1 anyway because (a) it'll make it easier if later it becomes worthwhile to use a `NonZeroU16` and because the arguments were previously indexed from 1, so it made for a smaller change.

This is my first PR on rust-lang/rust, so apologies if I've gotten anything not quite right.
2023-04-13 01:51:27 +00:00
..
auxiliary
await-keyword
drop-order
future-sizes Add test for Future inflating arg size to 3x 2023-02-07 08:52:15 +01:00
in-trait Split out a separate feature gate for impl trait in associated types 2023-04-12 16:17:31 +00:00
issues Add regression test for #107280 2023-03-01 21:58:27 +09:00
multiple-lifetimes Label opaque type for 'captures lifetime' error message 2023-03-03 05:02:34 +00:00
track-caller Remove identity_future indirection 2023-03-08 15:37:14 +01:00
argument-patterns.rs
async-assoc-fn-anon-lifetimes.rs
async-await-let-else.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
async-await-let-else.drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
async-await-let-else.drop-tracking.stderr
async-await-let-else.no_drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
async-await-let-else.no-drop-tracking.stderr
async-await-let-else.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
async-await.rs
async-block-control-flow-static-semantics.rs
async-block-control-flow-static-semantics.stderr Modify primary span label for E0308 2023-01-30 20:12:19 +00:00
async-borrowck-escaping-block-error.fixed
async-borrowck-escaping-block-error.rs
async-borrowck-escaping-block-error.stderr
async-borrowck-escaping-closure-error.rs
async-borrowck-escaping-closure-error.stderr
async-closure-matches-expr.rs
async-closure.rs
async-error-span.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
async-error-span.drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
async-error-span.no_drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
async-error-span.rs Bless tests. 2023-01-27 20:10:17 +00:00
async-fn-elided-impl-lifetime-parameter.rs
async-fn-nonsend.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
async-fn-nonsend.drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
async-fn-nonsend.no_drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
async-fn-nonsend.rs Bless tests. 2023-01-27 20:10:17 +00:00
async-fn-nonsend.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
async-fn-path-elision.rs
async-fn-path-elision.stderr Introduce ReError 2023-02-09 10:26:49 +00:00
async-fn-send-uses-nonsend.rs
async-fn-size-moved-locals.rs
async-fn-size-uninit-locals.rs
async-fn-size.rs
async-is-unwindsafe.rs
async-is-unwindsafe.stderr
async-matches-expr.rs
async-trait-fn.current.stderr Add revisions for -Zlower-impl-trait-in-trait-to-assoc-ty fixed tests 2023-03-17 16:01:53 -03:00
async-trait-fn.next.stderr Add revisions for -Zlower-impl-trait-in-trait-to-assoc-ty fixed tests 2023-03-17 16:01:53 -03:00
async-trait-fn.rs Add revisions for -Zlower-impl-trait-in-trait-to-assoc-ty fixed tests 2023-03-17 16:01:53 -03:00
async-trait-fn.stderr Add revisions for -Zlower-impl-trait-in-trait-to-assoc-ty fixed tests 2023-03-17 16:01:53 -03:00
async-unsafe-fn-call-in-safe.mir.stderr
async-unsafe-fn-call-in-safe.rs
async-unsafe-fn-call-in-safe.thir.stderr
async-with-closure.rs
await-into-future.rs
await-sequence.rs
await-unsize.rs
bound-normalization.rs
conditional-and-guaranteed-initialization.rs
default-struct-update.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
dont-print-desugared-async.rs
dont-print-desugared-async.stderr
dont-suggest-await-on-method-return-mismatch.rs
dont-suggest-await-on-method-return-mismatch.stderr
dont-suggest-missing-await.rs
dont-suggest-missing-await.stderr fix: improve the suggestion on future not awaited 2023-02-13 16:23:23 +01:00
drop-and-assign.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
drop-track-bad-field-in-fru.rs
drop-track-bad-field-in-fru.stderr
drop-track-field-assign-nonsend.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
drop-track-field-assign-nonsend.drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
drop-track-field-assign-nonsend.no_drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
drop-track-field-assign-nonsend.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
drop-track-field-assign.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
drop-tracking-unresolved-typeck-results.rs
drop-tracking-unresolved-typeck-results.stderr
edition-deny-async-fns-2015.current.stderr Add revisions for -Zlower-impl-trait-in-trait-to-assoc-ty fixed tests 2023-03-17 16:01:53 -03:00
edition-deny-async-fns-2015.next.stderr Add revisions for -Zlower-impl-trait-in-trait-to-assoc-ty fixed tests 2023-03-17 16:01:53 -03:00
edition-deny-async-fns-2015.rs Add revisions for -Zlower-impl-trait-in-trait-to-assoc-ty fixed tests 2023-03-17 16:01:53 -03:00
expansion-in-attrs.rs
feature-async-closure.rs
feature-async-closure.stderr
feature-gate-async_fn_in_trait.rs
feature-gate-async_fn_in_trait.stderr
feature-self-return-type.rs
feature-self-return-type.stderr
field-assign-nonsend.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
field-assign-nonsend.drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
field-assign-nonsend.no_drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
field-assign-nonsend.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
field-assign.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
futures-api.rs
generator-desc.rs
generator-desc.stderr Remove identity_future indirection 2023-03-08 15:37:14 +01:00
generator-not-future.rs
generator-not-future.stderr
generics-and-bounds.rs
incorrect-move-async-order-issue-79694.fixed
incorrect-move-async-order-issue-79694.rs
incorrect-move-async-order-issue-79694.stderr
interior-with-const-generic-expr.rs
issue-54239-private-type-triggers-lint.rs
issue-60709.rs
issue-61076.rs fix: improve the suggestion on future not awaited 2023-02-13 16:23:23 +01:00
issue-61076.stderr fix: improve the suggestion on future not awaited 2023-02-13 16:23:23 +01:00
issue-61452.rs
issue-61452.stderr
issue-61793.rs
issue-61949-self-return-type.rs
issue-61949-self-return-type.stderr
issue-62658.rs
issue-63832-await-short-temporary-lifetime-1.rs
issue-63832-await-short-temporary-lifetime.rs
issue-64130-1-sync.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-1-sync.drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-1-sync.no_drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-1-sync.rs Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-1-sync.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-64130-2-send.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-2-send.drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-2-send.no_drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-2-send.rs Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-2-send.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-64130-3-other.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-3-other.drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-3-other.no_drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-3-other.rs Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-3-other.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-64130-4-async-move.drop-tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-64130-4-async-move.no_drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-4-async-move.rs Bless tests. 2023-01-27 20:10:17 +00:00
issue-64130-non-send-future-diags.rs
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issue-64391.rs
issue-66312.rs
issue-66312.stderr
issue-66387-if-without-else.rs
issue-66387-if-without-else.stderr
issue-67252-unnamed-future.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-67252-unnamed-future.drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-67252-unnamed-future.no_drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-67252-unnamed-future.rs Bless tests. 2023-01-27 20:10:17 +00:00
issue-67651.rs
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issue-67765-async-diagnostic.rs
issue-67765-async-diagnostic.stderr
issue-68112.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-68112.drop_tracking.stderr Add rustc_on_unimplemented on Sync for cell types 2023-01-19 21:09:25 +01:00
issue-68112.no_drop_tracking.stderr Add rustc_on_unimplemented on Sync for cell types 2023-01-19 21:09:25 +01:00
issue-68112.rs Bless tests. 2023-01-27 20:10:17 +00:00
issue-68523-start.rs
issue-68523-start.stderr
issue-68523.rs
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issue-69446-fnmut-capture.rs
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issue-70594.rs
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issue-70818.drop_tracking_mir.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-70818.drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-70818.no_drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-70818.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-70818.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-70935-complex-spans.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-70935-complex-spans.drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-70935-complex-spans.no_drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
issue-70935-complex-spans.rs Bless tests. 2023-01-27 20:10:17 +00:00
issue-71137.rs
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issue-72442.rs
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issue-72470-llvm-dominate.rs
issue-72590-type-error-sized.rs
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issue-73050.rs
issue-73137.rs
issue-73541-1.rs
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issue-73541-2.rs
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issue-73541-3.rs
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issue-73541.rs
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issue-73741-type-err-drop-tracking.drop_tracking_mir.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-73741-type-err-drop-tracking.drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-73741-type-err-drop-tracking.no_drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-73741-type-err-drop-tracking.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-73741-type-err-drop-tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-73741-type-err.rs
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issue-74047.rs
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issue-74072-lifetime-name-annotations.rs
issue-74072-lifetime-name-annotations.stderr
issue-74497-lifetime-in-opaque.rs
issue-74497-lifetime-in-opaque.stderr
issue-75785-confusing-named-region.rs
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issue-76547.rs
issue-76547.stderr
issue-77993-2.rs
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issue-84841.rs
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issue-86507.drop_tracking_mir.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-86507.drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-86507.no_drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-86507.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-93197.rs
issue-93648.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
issue-98634.rs Tweak E0271 wording 2023-01-30 21:51:35 +00:00
issue-98634.stderr fix: improve the suggestion on future not awaited 2023-02-13 16:23:23 +01:00
issue-101715.rs
issue-101715.stderr
issue-105501.rs
issue-107036.rs
issue-108572.rs feat: impl better help for .poll() not found on impl Future 2023-03-05 09:34:00 +13:00
issue-108572.stderr feat: impl better help for .poll() not found on impl Future 2023-03-05 09:34:00 +13:00
large_moves.attribute.stderr Remove identity_future indirection 2023-03-08 15:37:14 +01:00
large_moves.option.stderr Remove identity_future indirection 2023-03-08 15:37:14 +01:00
large_moves.rs Remove identity_future indirection 2023-03-08 15:37:14 +01:00
missed-capture-issue-107414.rs Add test 2023-04-03 20:45:02 +02:00
move-part-await-return-rest-struct.rs
move-part-await-return-rest-tuple.rs
mutually-recursive-async-impl-trait-type.drop_tracking_mir.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
mutually-recursive-async-impl-trait-type.drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
mutually-recursive-async-impl-trait-type.no_drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
mutually-recursive-async-impl-trait-type.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
mutually-recursive-async-impl-trait-type.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
nested-in-impl.rs
no-async-const.rs
no-async-const.stderr
no-const-async.rs Remove identity_future indirection 2023-03-08 15:37:14 +01:00
no-const-async.stderr Remove identity_future indirection 2023-03-08 15:37:14 +01:00
no-move-across-await-struct.rs
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no-move-across-await-tuple.rs
no-move-across-await-tuple.stderr
no-non-guaranteed-initialization.rs
no-non-guaranteed-initialization.stderr
no-params-non-move-async-closure.rs
no-params-non-move-async-closure.stderr
no-std.rs
no-unsafe-async.rs
no-unsafe-async.stderr
non-trivial-drop.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
partial-drop-partial-reinit.drop_tracking.stderr
partial-drop-partial-reinit.no_drop_tracking.stderr
partial-drop-partial-reinit.rs
partial-initialization-across-await.rs
partial-initialization-across-await.stderr
pin-needed-to-poll-2.rs
pin-needed-to-poll-2.stderr
pin-needed-to-poll.rs
pin-needed-to-poll.stderr
proper-span-for-type-error.fixed
proper-span-for-type-error.rs
proper-span-for-type-error.stderr Modify primary span label for E0308 2023-01-30 20:12:19 +00:00
recursive-async-impl-trait-type.drop_tracking_mir.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
recursive-async-impl-trait-type.drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
recursive-async-impl-trait-type.no_drop_tracking.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
recursive-async-impl-trait-type.rs Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
recursive-async-impl-trait-type.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
repeat_count_const_in_async_fn.rs
return-ty-raw-ptr-coercion.rs
return-ty-unsize-coercion.rs
send-bound-async-closure.rs Bless tests. 2023-01-27 20:10:17 +00:00
suggest-missing-await-closure.fixed
suggest-missing-await-closure.rs
suggest-missing-await-closure.stderr fix: improve the suggestion on future not awaited 2023-02-13 16:23:23 +01:00
suggest-missing-await.rs
suggest-missing-await.stderr fix: improve the suggestion on future not awaited 2023-02-13 16:23:23 +01:00
suggest-switching-edition-on-await-cargo.rs
suggest-switching-edition-on-await-cargo.stderr
suggest-switching-edition-on-await.rs
suggest-switching-edition-on-await.stderr
task-context-arg.rs Preserve argument indexes when inlining MIR 2023-04-11 11:07:48 +10:00
try-on-option-in-async.rs
try-on-option-in-async.stderr
type-parameter-send.rs
unnecessary-await.rs
unnecessary-await.stderr
unreachable-lint-1.rs
unreachable-lint-1.stderr
unreachable-lint.rs
unresolved_type_param.drop_tracking_mir.stderr Bless tests. 2023-01-27 20:10:17 +00:00
unresolved_type_param.drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
unresolved_type_param.no_drop_tracking.stderr Bless tests. 2023-01-27 20:10:17 +00:00
unresolved_type_param.rs Bless tests. 2023-01-27 20:10:17 +00:00
unresolved_type_param.stderr Test the 3 generator handling versions for generator/async tests. 2023-01-27 18:58:13 +00:00
unused-lifetime.rs
unused-lifetime.stderr