rust/compiler/rustc_llvm/llvm-wrapper
Simonas Kazlauskas 2f000a78bf Manually set dso_local when its valid to do so
This should have no real effect in most cases, as e.g. `hidden`
visibility already implies `dso_local` (or at least LLVM IR does not
preserve the `dso_local` setting if the item is already `hidden`), but
it should fix `-Crelocation-model=static` and improve codegen in
executables.

Note that this PR does not exhaustively port the logic in [clang]. Only
the obviously correct portion and what is necessary to fix a regression
from LLVM 12 that relates to `-Crelocation_model=static`.

Fixes #83335

[clang]: 3001d080c8/clang/lib/CodeGen/CodeGenModule.cpp (L945-L1039)
2021-04-03 00:00:29 +03:00
..
.editorconfig
ArchiveWrapper.cpp Update the minimum external LLVM to 10 2021-03-22 11:33:43 -07:00
CoverageMappingWrapper.cpp fix: I meant LLVM version 13, not 12 2021-03-19 16:46:40 -04:00
Linker.cpp
LLVMWrapper.h LLVMWrapper: attractive nuisance macros 2021-03-24 14:39:13 -04:00
PassWrapper.cpp Auto merge of #83387 - cuviper:min-llvm-10, r=nagisa 2021-03-25 13:11:18 +00:00
README
RustWrapper.cpp Manually set dso_local when its valid to do so 2021-04-03 00:00:29 +03:00

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.