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Tomasz Miąsko
a61e13423e
The default ThinLTO pre-link pipeline does not include optimizer last extension points. Thus, when using the new LLVM pass manager & ThinLTO & sanitizers on any opt-level different from zero, the sanitizer function passes would be omitted from the pipeline. Add optimizer last extensions points manually to the pipeline, but guard registration with stage check in the case this behaviour changes in the future.
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.