Rollup of 15 pull requests
Successful merges:
- #129329 (Implement `From<&mut {slice}>` for `Box/Rc/Arc<{slice}>`)
- #131377 (Add LowerExp and UpperExp implementations to NonZero)
- #132393 (Docs: added brief colon explanation)
- #132437 (coverage: Regression test for inlining into an uninstrumented crate)
- #132499 (unicode_data.rs: show command for generating file)
- #132503 (better test for const HashMap; remove const_hash leftovers)
- #132511 (stabilize const_arguments_as_str)
- #132520 (NFC add known bug nr to test)
- #132522 (make codegen help output more consistent)
- #132523 (Added regression test for generics index out of bounds)
- #132528 (Use `*_opt` typeck results fns to not ICE in fallback suggestion)
- #132537 (PassWrapper: adapt for llvm/llvm-project@5445edb5d)
- #132540 (Do not format generic consts)
- #132543 (add and update some crashtests)
- #132550 (compiler: Continue introducing rustc_abi to the compiler)
r? `@ghost`
`@rustbot` modify labels: rollup
Port most of `--print=target-cpus` to Rust
The logic and formatting needed by `--print=target-cpus` has historically been carried out in C++ code. Originally it used `printf` to write directly to the console, but later it switched over to writing to a `std::ostringstream` and then passing its buffer to a callback function pointer.
This PR replaces that C++ code with a very simple function that writes a list of CPU names to a `&RustString`, with the rest of the logic and formatting being handled by ordinary safe Rust code.
PassWrapper: adapt for llvm/llvm-project@5445edb5d
As with ab5583ed1e, we had been explicitly passing defaults whose type have changed. Rather than do an ifdef, we simply rely on the defaults.
````@rustbot```` label: +llvm-main
PassWrapper: adapt for llvm/llvm-project@b01e2a8b56
A boolean turned into an enum. None matches the old behavior of false, so we pass that.
`@rustbot` label: +llvm-main
As with ab5583ed1e, we had been explicitly
passing defaults whose type have changed. Rather than do an ifdef, we
simply rely on the defaults.
@rustbot label: +llvm-main
We don't see a reason to explicitly pass the default here, so just use
the default instead of explicitly passing it and needing an ifdef.
@rustbot label: +llvm-main
cg_llvm: Clean up FFI calls for operand bundles
All of these FFI functions have equivalents in the stable LLVM-C API, though `LLVMBuildCallBr` requires a temporary polyfill on LLVM 18.
This PR also creates a clear split between `OperandBundleOwned` and `OperandBundle`, and updates the internals of the owner to be a little less terrifying.
cg_llvm: Clean up FFI calls for setting module flags
This is a combination of several inter-related changes to how module flags are set:
- Remove some unnecessary code for setting an `"LTOPostLink"` flag, which has been obsolete since LLVM 17.
- Define our own enum instead of relying on enum values defined by LLVM's unstable C++ API.
- Use safe wrapper functions to set module flags, instead of direct `unsafe` calls.
- Consistently pass pointer/length strings instead of C strings.
- Remove or shrink some `unsafe` blocks.
- Don't rely on enum values defined by LLVM's C++ API
- Use safe wrapper functions instead of direct `unsafe` calls
- Consistently pass pointer/length strings instead of C strings
coverage: Pass coverage mappings to LLVM as separate structs
Instead of trying to cram *N* different kinds of coverage mapping data into a single list for FFI, pass *N* different lists of simpler structs.
This avoids the need to fill unused fields with dummy values, and avoids the need to tag structs with their underlying kind. It also lets us call the dedicated LLVM constructors for each different mapping type, instead of having to go through the complex general-purpose constructor.
Even though this adds multiple new structs to the FFI surface area, the resulting C++ code is simpler and shorter.
---
I've structured this mostly as a single atomic patch, rather than a series of incremental changes, because that avoids the need to make fiddly fixes to code that is about to be deleted anyway.
RustWrapper: adapt for rename of Intrinsic::getDeclaration
llvm/llvm-project@fa789dffb1 renamed getDeclaration to getOrInsertDeclaration.
`@rustbot` label: +llvm-main
rustc_llvm: adapt to flattened CLI args in LLVM
This changed in
llvm/llvm-project@e190d074a0. I decided to stick with more duplication between the ifdef blocks to make the code easier to read for the next two years before we can plausibly drop LLVM 19.
`@rustbot` label: +llvm-main
try-job: x86_64-msvc
This changed in
llvm/llvm-project@e190d074a0. I decided to
stick with more duplication between the ifdef blocks to make the code
easier to read for the next two years before we can plausibly drop LLVM
19.
@rustbot label: +llvm-main
llvm-wrapper: adapt for LLVM API changes
No functional changes intended.
Updates the wrapper for 21eddfac3d.
````@rustbot```` label: +llvm-main
r? ````@nikic````
