bors d2d24e395a Auto merge of #123602 - cjgillot:gvn-borrowed, r=oli-obk ... Account for immutably borrowed locals in MIR copy-prop and GVN For the most part, we consider that immutably borrowed `Freeze` locals still fulfill SSA conditions. As the borrow is immutable, any use of the local will have the value given by the single assignment, and there can be no surprise. This allows copy-prop to merge a non-borrowed local with a borrowed local. We chose to keep copy-classes heads unborrowed, as those may be easier to optimize in later passes. This also allows to GVN the value behind an immutable borrow. If a SSA local is borrowed, dereferencing that borrow is equivalent to copying the local's value: re-executing the assignment between the borrow and the dereference would be UB. r? `@ghost` for perf		2024-05-03 21:50:13 +00:00
..
borrowed_local.borrowed.CopyProp.panic-abort.diff	Use newly exposed Freeze trait.	2024-04-20 19:25:20 +00:00
borrowed_local.borrowed.CopyProp.panic-unwind.diff	Use newly exposed Freeze trait.	2024-04-20 19:25:20 +00:00
borrowed_local.compare_address.CopyProp.panic-abort.diff	Add tests.	2024-04-20 19:10:23 +00:00
borrowed_local.compare_address.CopyProp.panic-unwind.diff	Add tests.	2024-04-20 19:10:23 +00:00
borrowed_local.non_freeze.CopyProp.panic-abort.diff	Add tests.	2024-04-20 19:10:23 +00:00
borrowed_local.non_freeze.CopyProp.panic-unwind.diff	Add tests.	2024-04-20 19:10:23 +00:00
borrowed_local.rs	Auto merge of #123602 - cjgillot:gvn-borrowed, r=oli-obk	2024-05-03 21:50:13 +00:00
branch.foo.CopyProp.panic-abort.diff
branch.foo.CopyProp.panic-unwind.diff
branch.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
calls.multiple_edges.CopyProp.diff
calls.nrvo.CopyProp.diff
calls.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
copy_propagation_arg.arg_src.CopyProp.panic-abort.diff
copy_propagation_arg.arg_src.CopyProp.panic-unwind.diff
copy_propagation_arg.bar.CopyProp.panic-abort.diff
copy_propagation_arg.bar.CopyProp.panic-unwind.diff
copy_propagation_arg.baz.CopyProp.panic-abort.diff
copy_propagation_arg.baz.CopyProp.panic-unwind.diff
copy_propagation_arg.foo.CopyProp.panic-abort.diff
copy_propagation_arg.foo.CopyProp.panic-unwind.diff
copy_propagation_arg.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
custom_move_arg.f.CopyProp.panic-abort.diff
custom_move_arg.f.CopyProp.panic-unwind.diff	Fix validation and linting of injected MIR	2024-01-04 23:06:42 +01:00
custom_move_arg.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
cycle.main.CopyProp.panic-abort.diff
cycle.main.CopyProp.panic-unwind.diff
cycle.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
dead_stores_79191.f.CopyProp.after.panic-abort.mir
dead_stores_79191.f.CopyProp.after.panic-unwind.mir
dead_stores_79191.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
dead_stores_better.f.CopyProp.after.panic-abort.mir
dead_stores_better.f.CopyProp.after.panic-unwind.mir
dead_stores_better.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
issue_107511.main.CopyProp.panic-abort.diff	Start blocks eagerly	2024-02-12 17:37:05 +01:00
issue_107511.main.CopyProp.panic-unwind.diff	Start blocks eagerly	2024-02-12 17:37:05 +01:00
issue_107511.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
move_arg.f.CopyProp.panic-abort.diff
move_arg.f.CopyProp.panic-unwind.diff
move_arg.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
move_projection.f.CopyProp.panic-abort.diff
move_projection.f.CopyProp.panic-unwind.diff	Fix validation and linting of injected MIR	2024-01-04 23:06:42 +01:00
move_projection.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
mutate_through_pointer.f.CopyProp.diff
mutate_through_pointer.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
non_dominate.f.CopyProp.diff
non_dominate.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
partial_init.main.CopyProp.diff
partial_init.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00
reborrow.demiraw.CopyProp.panic-abort.diff	Remove MIR unsafe check	2024-04-03 08:50:12 +00:00
reborrow.demiraw.CopyProp.panic-unwind.diff	Remove MIR unsafe check	2024-04-03 08:50:12 +00:00
reborrow.miraw.CopyProp.panic-abort.diff	Remove MIR unsafe check	2024-04-03 08:50:12 +00:00
reborrow.miraw.CopyProp.panic-unwind.diff	Remove MIR unsafe check	2024-04-03 08:50:12 +00:00
reborrow.remut.CopyProp.panic-abort.diff
reborrow.remut.CopyProp.panic-unwind.diff
reborrow.reraw.CopyProp.panic-abort.diff
reborrow.reraw.CopyProp.panic-unwind.diff
reborrow.rs	mir-opt tests: rename unit-test -> test-mir-pass	2024-04-20 13:19:34 +02:00