https://bugzilla.redhat.com/show_bug.cgi?id=2003287
Bug ID: 2003287
Summary: Review Request: python-llvmlite - A lightweight LLVM
python binding for writing JIT compilers
Product: Fedora
Version: rawhide
Hardware: All
OS: Linux
Status: NEW
Component: Package Review
Severity: medium
Priority: medium
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected]
Target Milestone: ---
Classification: Fedora
Spec URL:
https://ankursinha.fedorapeople.org/python-llvmlite/python-llvmlite.spec
SRPM URL:
https://ankursinha.fedorapeople.org/python-llvmlite/python-llvmlite-0.37.0-1.fc34.src.rpm
Description:
The old llvmpy binding exposes a lot of LLVM APIs but the mapping of C++-style
memory management to Python is error prone. Numba and many JIT compilers do not
need a full LLVM API. Only the IR builder, optimizer, and JIT compiler APIs are
necessary.
llvmlite is a project originally tailored for Numba's needs, using the
following approach:
- A small C wrapper around the parts of the LLVM C++ API we need that are not
already exposed by the LLVM C API.
- A ctypes Python wrapper around the C API.
- A pure Python implementation of the subset of the LLVM IR builder that we
need for Numba.
Key Benefits
- The IR builder is pure Python code and decoupled from LLVM’s
frequently-changing C++ APIs.
- Materializing a LLVM module calls LLVM's IR parser which provides better
error messages than step-by-step IR building through the C++ API (no more
segfaults or process aborts).
- Most of llvmlite uses the LLVM C API which is small but very stable (low
maintenance when changing LLVM version).
- The binding is not a Python C-extension, but a plain DLL accessed using
ctypes (no need to wrestle with Python’s compiler requirements and C++ 11
compatibility).
- The Python binding layer has sane memory management.
- llvmlite is quite faster than llvmpy thanks to a much simpler architeture
(the Numba test suite is twice faster than it was).
Fedora Account System Username: ankursinha
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