[mlir][tosa] Add a pass to narrow i64 to i32 (#165581) This pass aims to narrow i64 types on TOSA operations to i32. It can be useful for legalizations from various frameworks. It comes with the following options: - "aggressive-rewrite" - This option is typically able to narrow more values, but may impact numerical behaviour if not used carefully. - "convert-function-boundaries" - If enabled, parameters/ results to/from a function may be narrowed. Otherwise, casts are inserted to preserve the I/O of the function. Currently the non aggressive mode is very limited, targeting an argmax -> cast sequence that has been observed during legalization as well as some data layout operations that can always narrow. Support for more operations will be added in the future. Co-authored-by: Vitalii Shutov <vitalii.shutov@arm.com> Co-authored-by: Shubham <shubham@arm.com> Co-authored-by: Declan Flavin <declan.flavin@arm.com> Signed-off-by: Luke Hutton <luke.hutton@arm.com> Co-authored-by: Vitalii Shutov <vitalii.shutov@arm.com> Co-authored-by: Shubham <shubham@arm.com> Co-authored-by: Declan Flavin <declan.flavin@arm.com>
Welcome to the LLVM project!
This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
The LLVM project has multiple components. The core of the project is itself called “LLVM”. This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.
C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.
Other components include: the libc++ C++ standard library, the LLD linker, and more.
Consult the Getting Started with LLVM page for information on building and running LLVM.
For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.
Join the LLVM Discourse forums, Discord chat, LLVM Office Hours or Regular sync-ups.
The LLVM project has adopted a code of conduct for participants to all modes of communication within the project.