rust/compiler/rustc_llvm/llvm-wrapper
bors a9b2c6a0ce Auto merge of #114005 - Zalathar:no-cstr, r=jackh726
coverage: Don't convert filename/symbol strings to `CString` for FFI

LLVM APIs are usually perfectly happy to accept pointer/length strings, as long as we supply a suitable length value when creating a `StringRef` or `std::string`.

This lets us avoid quite a few intermediate `CString` copies during coverage codegen. It also lets us use an `IndexSet<Symbol>` (instead of an `IndexSet<CString>`) when building the deduplicated filename table.
2023-08-10 23:06:10 +00:00
..
.editorconfig
ArchiveWrapper.cpp
CoverageMappingWrapper.cpp coverage: Don't convert symbol names to CString for FFI 2023-08-04 10:48:05 +10:00
Linker.cpp
LLVMWrapper.h remove llvm-wrapper include to silence deprecation warning 2023-08-08 10:48:20 +00:00
PassWrapper.cpp Rollup merge of #114612 - lqd:east-17-warning, r=nikic 2023-08-08 21:44:44 +02:00
README
RustWrapper.cpp Rollup merge of #113593 - rcvalle:rust-cfi-fix-90546, r=wesleywiser 2023-08-08 21:44:43 +02:00
SymbolWrapper.cpp llvm-wrapper: update for LLVM API change 2023-07-14 12:10:29 +00:00

This directory currently contains some LLVM support code. This will generally
be sent upstream to LLVM in time; for now it lives here.

NOTE: the LLVM C++ ABI is subject to between-version breakage and must *never*
be exposed to Rust. To allow for easy auditing of that, all Rust-exposed types
must be typedef-ed as "LLVMXyz", or "LLVMRustXyz" if they were defined here.

Functions that return a failure status and leave the error in
the LLVM last error should return an LLVMRustResult rather than an
int or anything to avoid confusion.

When translating enums, add a single `Other` variant as the first
one to allow for new variants to be added. It should abort when used
as an input.

All other types must not be typedef-ed as such.