rust/compiler/rustc_llvm/llvm-wrapper
Tomasz Miąsko 5a09e12135 Initialize LLVM time trace profiler on each code generation thread
In https://reviews.llvm.org/D71059 LLVM 11, the time trace profiler was
extended to support multiple threads.

`timeTraceProfilerInitialize` creates a thread local profiler instance.
When a thread finishes `timeTraceProfilerFinishThread` moves a thread
local instance into a global collection of instances. Finally when all
codegen work is complete `timeTraceProfilerWrite` writes data from the
current thread local instance and the instances in global collection
of instances.

Previously, the profiler was intialized on a single thread only. Since
this thread performs no code generation on its own, the resulting
profile was empty.

Update LLVM codegen to initialize & finish time trace profiler on each
code generation thread.
2021-11-05 17:47:11 +01:00
..
.editorconfig
ArchiveWrapper.cpp
CoverageMappingWrapper.cpp Update the minimum external LLVM to 11 2021-10-22 09:22:18 -07:00
Linker.cpp
LLVMWrapper.h RustWrapper: adapt for an LLVM API change 2021-10-18 09:48:47 +02:00
PassWrapper.cpp Initialize LLVM time trace profiler on each code generation thread 2021-11-05 17:47:11 +01:00
README
RustWrapper.cpp Update the minimum external LLVM to 12 2021-10-22 10:50:07 -07:00

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.