rust/compiler/rustc_codegen_llvm/src/debuginfo, branch 1.62.0

Auto merge of #96094 - Elliot-Roberts:fix_doctests, r=compiler-errors

2022-05-07T06:30:29+00:00

Begin fixing all the broken doctests in `compiler/` Begins to fix #95994. All of them pass now but 24 of them I've marked with `ignore HELP ()` (asking for help) as I'm unsure how to get them to work / if we should leave them as they are. There are also a few that I marked `ignore` that could maybe be made to work but seem less important. Each `ignore` has a rough "reason" for ignoring after it parentheses, with - `(pseudo-rust)` meaning "mostly rust-like but contains foreign syntax" - `(illustrative)` a somewhat catchall for either a fragment of rust that doesn't stand on its own (like a lone type), or abbreviated rust with ellipses and undeclared types that would get too cluttered if made compile-worthy. - `(not-rust)` stuff that isn't rust but benefits from the syntax highlighting, like MIR. - `(internal)` uses `rustc_*` code which would be difficult to make work with the testing setup. Those reason notes are a bit inconsistently applied and messy though. If that's important I can go through them again and try a more principled approach. When I run `rg '```ignore \(' .` on the repo, there look to be lots of different conventions other people have used for this sort of thing. I could try unifying them all if that would be helpful. I'm not sure if there was a better existing way to do this but I wrote my own script to help me run all the doctests and wade through the output. If that would be useful to anyone else, I put it here: https://github.com/Elliot-Roberts/rust_doctest_fixing_tool

fix most compiler/ doctests

2022-05-03T00:40:30+00:00

rustc: Panic by default in `DefIdTree::parent`

2022-05-01T22:56:50+00:00

Only crate root def-ids don't have a parent, and in majority of cases the argument of `DefIdTree::parent` cannot be a crate root. So we now panic by default in `parent` and introduce a new non-panicing function `opt_parent` for cases where the argument can be a crate root. Same applies to `local_parent`/`opt_local_parent`.

not need `Option` for `dbg_scope`

2022-04-26T13:00:19+00:00

debuginfo: Emit ZST struct debuginfo for unit type when CPP-like debuginfo is enabled (instead of custom basic type).

2022-04-22T12:59:35+00:00

couple of clippy::perf fixes

2022-04-13T20:18:28+00:00

Remove NodeIdHashingMode.

2022-04-12T17:59:32+00:00

Mark scalar layout unions so that backends that do not support partially initialized scalars can special case them.

2022-04-05T13:18:21+00:00

Spellchecking compiler code

2022-03-30T05:42:10+00:00

Address some spelling mistakes in strings, private function names, and function params.

Auto merge of #95300 - workingjubilee:less-bitsets, r=eddyb

2022-03-28T05:48:25+00:00

Skip needless bitset for debuginfo Found this while digging around looking at the inlining logic. Seemed obvious enough so I decided to try to take care of it. Is this what you had in mind, `@eddyb?`