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bors 8e2d5e3a58 Auto merge of #112910 - lqd:mcp510, r=petrochenkov 
Implement most of MCP510

This implements most of what remains to be done for MCP510:
- turns `-C link-self-contained` into a `+`/`-` list of components, like `-C link-self-contained=+linker,+crto,+libc,+unwind,+sanitizers,+mingw`. The scaffolding is present for all these expected components to be implemented and stabilized in the future on their own time. This PR only handles the `-Zgcc-ld=lld` subset of these link-self-contained components as  `-Clink-self-contained=+linker`
- handles  `-C link-self-contained=y|n`  as-is today, for compatibility with `rustc_codegen_ssa:🔙🔗:self_contained`'s [explicit opt-in and opt-out](9eee230cd0/compiler/rustc_codegen_ssa/src/back/link.rs (L1671-L1676)).
- therefore supports our plan to opt out of `rust-lld` (when it's enabled by default) even for current `-Clink-self-contained` users, with e.g. `-Clink-self-contained -Clink-self-contained=-linker`
- turns `add_gcc_ld_path` into its expected final form, by using the `-C link-self-contained=+linker`  CLI flag, and whether the `LinkerFlavor`  has the expected `Cc::Yes` and `Lld::Yes` shape (this is not yet the case in practice for any CLI linker flavor)
- makes the [new clean linker flavors](https://github.com/rust-lang/rust/pull/96827#issuecomment-1208441595) selectable in the CLI in addition to the legacy ones, in order to opt-in to using `cc` and `lld` to emulate `-Zgcc-ld=lld`
- ensure the new `-C link-self-contained` components, and `-C linker-flavor`s are unstable, and require `-Z unstable-options` to be used

The up-to-date set of flags for the future stable CLI version of `-Zgcc-ld=lld` is currently: `-Clink-self-contained=+linker -Clinker-flavor=gnu-lld-cc -Zunstable-options`.

It's possible we'll also need to do something for distros that don't ship `rust-lld`, but maybe there are already no tool search paths to be added to `cc` in this situation anyways.

r? `@petrochenkov`
2023-07-02 02:25:01 +00:00
..
assembly remove box_free and replace with drop impl 2023-06-16 13:41:06 -07:00
auxiliary
codegen Auto merge of #112516 - erikdesjardins:loop, r=davidtwco 2023-06-27 15:01:56 +00:00
codegen-units
debuginfo Add multiple borrow test. 2023-05-13 10:32:32 +00:00
incremental Implement custom diagnostic for ConstParamTy 2023-06-01 18:21:42 +00:00
mir-opt Auto merge of #112307 - lcnr:operand-ref, r=compiler-errors 2023-06-28 00:41:37 +00:00
pretty
run-coverage Re-bless the newly-migrated tests 2023-06-28 11:09:19 +10:00
run-coverage-rustdoc Re-bless the newly-migrated tests 2023-06-28 11:09:19 +10:00
run-make add end-to-end test 2023-06-30 21:13:24 +00:00
run-make-fulldeps Provide more context for rustc +nightly -Zunstable-options on stable 2023-06-27 23:23:33 +08:00
run-pass-valgrind
rustdoc Rollup merge of #113058 - GuillaumeGomez:improve-code-comments, r=notriddle 2023-06-27 07:01:32 +02:00
rustdoc-gui Improve search-result-display.goml test 2023-06-30 11:45:42 +02:00
rustdoc-js Auto merge of #112233 - notriddle:notriddle/search-unify, r=GuillaumeGomez 2023-06-15 03:04:46 +00:00
rustdoc-js-std Auto merge of #112233 - notriddle:notriddle/search-unify, r=GuillaumeGomez 2023-06-15 03:04:46 +00:00
rustdoc-json Serialize all enums as externally tagged to guarantee compatibility with binary formats such as bincode or postcard 2023-05-22 18:22:08 +01:00
rustdoc-ui rustdoc: get unnormalized link destination for suggestions 2023-05-26 18:38:46 -07:00
ui Auto merge of #112910 - lqd:mcp510, r=petrochenkov 2023-07-02 02:25:01 +00:00
ui-fulldeps Auto merge of #111269 - clubby789:validate-fluent-variables, r=davidtwco 2023-06-28 03:47:02 +00:00
COMPILER_TESTS.md