6018930ef1
This commit adds support for WebAssembly's custom-page-sizes proposal to `wasm-ld`. An overview of the proposal can be found [here](https://github.com/WebAssembly/custom-page-sizes/blob/main/proposals/custom-page-sizes/Overview.md). In a sentence, it allows customizing a Wasm memory's page size, enabling Wasm to target environments with less than 64KiB of memory (the default Wasm page size) available for Wasm memories. This commit contains the following: * Adds a `--page-size=N` CLI flag to `wasm-ld` for configuring the linked Wasm binary's linear memory's page size. * When the page size is configured to a non-default value, then the final Wasm binary will use the encodings defined in the custom-page-sizes proposal to declare the linear memory's page size. * Defines a `__wasm_first_page_end` symbol, whose address points to the first page in the Wasm linear memory, a.k.a. is the Wasm memory's page size. This allows writing code that is compatible with any page size, and doesn't require re-compiling its object code. At the same time, because it just lowers to a constant rather than a memory access or something, it enables link-time optimization. * Adds tests for these new features. r? @sbc100 cc @sunfishcode
The LLVM Compiler Infrastructure
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.
Getting the Source Code and Building LLVM
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.
Getting in touch
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.