4beff80b2f
* `optimize_mode` is passed to `link.File` and stored there * improve the debugging function `Module.dumpInst` * get rid of `Value.the_one_possible_value` in favor of a few more specific values for different types. This is less buggy, one less footgun. * `Type.onePossibleValue` now returns a `?Value` instead of `bool`. * codegen handles undefined values. `undef` is a new `MCValue` tag. It uses 0xaa values depending on optimization mode. However optimization mode does not yet support scope overrides. * link.zig: move the `Options` field from `File.Elf` and `File.C` to the base struct. - fix the Tag enum to adhere to style conventions * ZIR now supports emitting undefined values. * Fix the logic of comptime math to properly compare against zero using the `compareWithZero` function.
A general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
Resources
- Introduction
- Download & Documentation
- Community
- Contributing
- Frequently Asked Questions
- Community Projects
Building from Source
Note that you can download a binary of master branch.
Stage 1: Build Zig from C++ Source Code
Dependencies
POSIX
- cmake >= 2.8.5
- gcc >= 5.0.0 or clang >= 3.6.0
- LLVM, Clang, LLD development libraries == 10.x, compiled with the same gcc or clang version above
- Use the system package manager, or build from source.
Windows
- cmake >= 3.15.3
- Microsoft Visual Studio. Supported versions:
- 2015 (version 14)
- 2017 (version 15.8)
- 2019 (version 16)
- LLVM, Clang, LLD development libraries == 10.x
- Use the pre-built binaries or build from source.
Instructions
POSIX
mkdir build
cd build
cmake ..
make install
Need help? Troubleshooting Build Issues
MacOS
brew install cmake llvm
brew outdated llvm || brew upgrade llvm
mkdir build
cd build
cmake .. -DCMAKE_PREFIX_PATH=$(brew --prefix llvm)
make install
You will now run into this issue:
homebrew and llvm 10 packages in apt.llvm.org are broken with undefined reference to getPollyPluginInfo
or
error: unable to create target: 'Unable to find target for this triple (no targets are registered)',
in which case try -DZIG_WORKAROUND_4799=ON
Hopefully this will be fixed upstream with LLVM 10.0.1.
Windows
See https://github.com/ziglang/zig/wiki/Building-Zig-on-Windows