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bors 3be68033b6 Auto merge of #145513 - beepster4096:erasedereftemps, r=saethlin,cjgillot 
Validate CopyForDeref and DerefTemps better and remove them from runtime MIR

(split from my WIP rust-lang/rust#145344)

This PR:
- Removes `Rvalue::CopyForDeref` and `LocalInfo::DerefTemp` from runtime MIR
    - Using a new mir pass `EraseDerefTemps`
    - `CopyForDeref(x)` is turned into `Use(Copy(x))`
    - `DerefTemp` is turned into `Boring`
        - Not sure if this part is actually necessary, it made more sense in rust-lang/rust#145344 with `DerefTemp` storing actual data that I wanted to keep from having to be kept in sync with the rest of the body in runtime MIR
- Checks in validation that `CopyForDeref` and `DerefTemp` are only used together
- Removes special handling for `CopyForDeref` from many places
- Removes `CopyForDeref` from `custom_mir` reverting rust-lang/rust#111587
    - In runtime MIR simple copies can be used instead
    - In post cleanup analysis MIR it was already wrong to use due to the lack of support for creating `DerefTemp` locals
    - Possibly this should be its own PR?
 - Adds an argument to `deref_finder` to avoid creating new `DerefTemp`s and `CopyForDeref` in runtime MIR.
     - Ideally we would just avoid making intermediate derefs instead of fixing it at the end of a pass / during shim building
 - Removes some usages of `deref_finder` that I found out don't actually do anything

r? oli-obk
2025-10-12 02:34:20 +00:00
..
custom Auto merge of #145513 - beepster4096:erasedereftemps, r=saethlin,cjgillot 2025-10-12 02:34:20 +00:00
match Add test. 2025-09-16 22:44:35 +00:00
async_await.a-{closure#0}.coroutine_resume.0.mir Do not renumber resume local. 2025-09-16 22:50:32 +00:00
async_await.b-{closure#0}.coroutine_resume.0.mir Do not renumber resume local. 2025-09-16 22:50:32 +00:00
async_await.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
coroutine.main-{closure#0}.StateTransform.after.mir trivial test blessings 2025-10-10 18:40:00 -07:00
coroutine.main-{closure#1}.StateTransform.after.mir trivial test blessings 2025-10-10 18:40:00 -07:00
coroutine.rs Do not renumber resume local. 2025-09-16 22:50:32 +00:00
dump_mir_cycle.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
enum_cast.bar.built.after.mir MIR-build: No longer emit assumes in enum-as casting 2025-07-24 10:18:37 -07:00
enum_cast.boo.built.after.mir MIR-build: No longer emit assumes in enum-as casting 2025-07-24 10:18:37 -07:00
enum_cast.far.built.after.mir MIR-build: No longer emit assumes in enum-as casting 2025-07-24 10:18:37 -07:00
enum_cast.foo.built.after.mir Remove comments from mir-opt MIR dumps 2023-06-15 15:19:11 -04:00
enum_cast.offsetty.built.after.mir MIR-build: No longer emit assumes in enum-as casting 2025-07-24 10:18:37 -07:00
enum_cast.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
enum_cast.signy.built.after.mir MIR-build: No longer emit assumes in enum-as casting 2025-07-24 10:18:37 -07:00
enum_cast.unsigny.built.after.mir Remove comments from mir-opt MIR dumps 2023-06-15 15:19:11 -04:00
eq_never_type._f.built.after.mir Bless *all* the mir-opt tests 2024-08-18 16:07:33 -07:00
eq_never_type.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
index_array_and_slice.index_array.built.after.mir Reapply "Auto merge of #133734 - scottmcm:lower-indexing-to-ptrmetadata, r=davidtwco,RalfJung" 2025-01-27 23:42:47 +00:00
index_array_and_slice.index_const_generic_array.built.after.mir Reapply "Auto merge of #133734 - scottmcm:lower-indexing-to-ptrmetadata, r=davidtwco,RalfJung" 2025-01-27 23:42:47 +00:00
index_array_and_slice.index_custom.built.after.mir Represent the raw pointer for a array length check as a new kind of fake borrow 2025-01-28 00:00:33 +00:00
index_array_and_slice.index_mut_slice.built.after.mir Represent the raw pointer for a array length check as a new kind of fake borrow 2025-01-28 00:00:33 +00:00
index_array_and_slice.index_slice.built.after.mir Reapply "Auto merge of #133734 - scottmcm:lower-indexing-to-ptrmetadata, r=davidtwco,RalfJung" 2025-01-27 23:42:47 +00:00
index_array_and_slice.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
issue_49232.main.built.after.mir Bless *all* the mir-opt tests 2024-08-18 16:07:33 -07:00
issue_49232.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
issue_101867.main.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
issue_101867.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
issue_110508.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
issue_110508.{impl#0}-BAR.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
issue_110508.{impl#0}-SELF_BAR.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
logical_or_in_conditional.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
logical_or_in_conditional.test_complex.built.after.mir Remove let_chains feature gate from even more tests 2025-04-18 15:57:29 +02:00
logical_or_in_conditional.test_or.built.after.mir Bless *all* the mir-opt tests 2024-08-18 16:07:33 -07:00
loop_match_diverges.break_to_block_unit.built.after.mir add place mention for #[loop_match] scrutinee 2025-08-10 14:25:49 +02:00
loop_match_diverges.infinite_a.built.after.mir add place mention for #[loop_match] scrutinee 2025-08-10 14:25:49 +02:00
loop_match_diverges.rs add place mention for #[loop_match] scrutinee 2025-08-10 14:25:49 +02:00
loop_match_diverges.simple.built.after.mir add place mention for #[loop_match] scrutinee 2025-08-10 14:25:49 +02:00
receiver_ptr_mutability.main.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
receiver_ptr_mutability.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
shifts.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
shifts.shift_signed.built.after.mir Bless *all* the mir-opt tests 2024-08-18 16:07:33 -07:00
shifts.shift_unsigned.built.after.mir Bless *all* the mir-opt tests 2024-08-18 16:07:33 -07:00
storage_live_dead_in_statics.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
storage_live_dead_in_statics.XXX.built.after.mir Give an AllocId to ConstValue::Slice. 2025-07-23 23:54:37 +00:00
uniform_array_move_out.move_out_by_subslice.built.after.mir Return the otherwise_block instead of passing it as argument 2024-07-09 22:47:35 +02:00
uniform_array_move_out.move_out_from_end.built.after.mir Return the otherwise_block instead of passing it as argument 2024-07-09 22:47:35 +02:00
uniform_array_move_out.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
user_type_annotations.let_else.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
user_type_annotations.let_else_bindless.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
user_type_annotations.let_init.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
user_type_annotations.let_init_bindless.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
user_type_annotations.let_uninit.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
user_type_annotations.let_uninit_bindless.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
user_type_annotations.match_assoc_const.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
user_type_annotations.match_assoc_const_range.built.after.mir Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
user_type_annotations.rs Use -Zmir-opt-level=0 in tests for MIR building 2025-08-26 23:42:38 -04:00
while_storage.rs Update mir-opt filechecks 2024-08-18 15:52:23 -07:00
while_storage.while_loop.PreCodegen.after.panic-abort.mir Bless *all* the mir-opt tests 2024-08-18 16:07:33 -07:00
while_storage.while_loop.PreCodegen.after.panic-unwind.mir Bless *all* the mir-opt tests 2024-08-18 16:07:33 -07:00