…clif-2021-03-29

This wrapper implements StableAddress and falls back to directly reading
the file on wasm32

This doesn't enable unwinding as cg_clif doesn't support it yet. It does
allow for linking to a cg_llvm compiled libstd.so, which uses
`-Cpanic=unwind`.

It is broken and needs to be rewritten from scratch

It isn't effective with the new backend framework

This reverts commit afe74d7. It
shouldn't have been pushed to master as it isn't ready yet.

Changes `librustc_X` to `rustc_X`, only in documentation comments.
Plain code comments are left unchanged.

Also fix incorrect file paths.

Isolate mono items

This simplifies the jit driver a lot

Driver refactorings

LLVM supports many functions from math.h in its IR. Many of these have
single-instruction variants on various platforms. So, let's add them so
std::arch can use them.

Yes, exact comparison is intentional: rounding must always return a
valid integer-equal value, except for inf/NAN.

Fixes rust-lang#1114

Fixes rust-lang#1162

Fixes rust-lang#1161

and raise fatal error if the specified target cpu is not supported

Co-authored-by: bjorn3 <[email protected]>

Support -Ctarget-cpu

…location function

Split into five sections to match the tiers: "Tier 1 with Host Tools",
"Tier 1", "Tier 2 with Host Tools", "Tier 2", and "Tier 3". Explain each
tier briefly in prose, and link to the corresponding section of the
policy for full requirements.

Drop the `host` columns from the first four, since the different
sections distinguish that. (Keep the `host` column for "Tier 3", since
it's a single list and the `host` column just indicates if host tools
are expected to work.)

Targets with host tools always have full support for std, so drop the
`std` column from those.

Move the explanations of the `std` column next to the appropriate
tables, and drop the unknown/WIP case for tier 2 targets.

Use "target" terminology consistently throughout.

Sort each table by target name.

The former is deprecated.
OF_None has been available in LLVM since 2018-06.

* No-op register_jit on Windows

Co-authored-by: bjorn3 <[email protected]>

…t-rebase

…xtern_locations, r=jyn514

rustdoc: Only store locations in Cache::extern_locations and calculate the other info on-demand

 help rust-lang#84588

…t-tier-policy, r=pietroalbini

platform-support.md: Update for consistency with Target Tier Policy

Split into five sections to match the tiers: "Tier 1 with Host Tools",
"Tier 1", "Tier 2 with Host Tools", "Tier 2", and "Tier 3". Explain each
tier briefly in prose, and link to the corresponding section of the
policy for full requirements.

Drop the `host` columns from the first four, since the different
sections distinguish that. (Keep the `host` column for "Tier 3", since
it's a single list and the `host` column just indicates if host tools
are expected to work.)

Targets with host tools always have full support for std, so drop the
`std` column from those.

Move the explanations of the `std` column next to the appropriate
tables, and drop the unknown/WIP case for tier 2 targets.

Use "target" terminology consistently throughout.

Sort each table by target name.

Replace llvm::sys::fs::F_None with llvm::sys::fs::OF_None

The former is deprecated.
OF_None has been available in LLVM since 2018-06.

-----

OF_None (https://reviews.llvm.org/rG1f67a3cba9b09636c56e2109d8a35ae96dc15782) exists in LLVM 9.
https://reviews.llvm.org/D101506 may drop `F_None` support.

Reset the docs' copy path button after 1 second

I like that this copy path button on the top next to the type/module's name changes to a check mark when you successfully clicked and copied the path but I find it really weird how the icon stays that check mark forever after the first time of clicking it. Imagine you leave that documentation tab open and come back after 2 hours and you still see that check mark in that box because you copied the path 2 hours ago. You will probably be confused and you might've forgotten what that button even does (even more so currently where this is a new feature, or when you simply don't use it often), so I really think at some point it should go back to the ⎘ icon which, at least to me, pretty clearly indicates copying, whereas the check mark (if it stays there for so long) could falsely look like a verification mark indicating "this module is verified" or something like that.
I believe after a longer period of time it's not logical to still tell the user "yes you've copied this successful".

In addition to this timeout, maybe it could be made so that you can't copy again until this cooldown of 1 second is over, but I'm not sure how useful or user-friendly that feature would be so maybe it's fine the way it is now.
Also the timeout is cleared every time you click again so if you constantly click it, it won't reset during that.

Sync `rustc_codegen_cranelift`

Retrying rust-lang#84746

r? ``@bjorn3``

---

Edit(bjorn3): Since the last sync there have been some refactorings around the driver code in preparation for a planned new feature. In addition ``@mominul`` implemented `-Ctarget-cpu` support and ``@XAMPPRocky`` fixed compilation of cg_clif itself for Windows with the MSVC toolchain.

…aumeGomez

Add a ToC to the Target Tier Policy documentation

The policy document is quite lengthy, I figured it might be good to have a quick way to jump to the specific tier policies.

Update cargo

7 commits in 4369396ce7d270972955d876eaa4954bea56bcd9..f3e13226d6d17a2bc5f325303494b43a45f53b7f
2021-04-27 14:35:53 +0000 to 2021-04-30 21:50:27 +0000
- Fix problem with metrics test. (rust-lang/cargo#9440)
- Show transfer rate when fetching/updating registry index (rust-lang/cargo#9395)
- Fix collision doc tests randomly failing. (rust-lang/cargo#9434)
- Add missing tracking issues and unstable docs. (rust-lang/cargo#9429)
- Fix dep-info files emitting paths relative to deps' roots (rust-lang/cargo#9421)
- Upgrade to GitHub-native Dependabot (rust-lang/cargo#9428)
- Only deny the `unused_mut` lint (rust-lang/cargo#9425)

Fix misspelling

Fix a misspelling of "or" in the source_code_based_coverage section of
*The Rust Unstable Book*.