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Andrew Kelley 4b6740e19d
sometimes free stuff from Zig IR pass 1
Total bytes used in stage1 std lib tests:
3.418 -> 3.198 GiB (saving 225 MiB)

There's still this from pass 1 not getting freed:
Const: 6909049 items, 72 bytes each, total 474.407 MiB

This is due to 2 things hanging on to references to IrAnalyze pointers:
 * ZigVar->owner_exec->analysis
 * LazyValue->ira

The LazyValue one could be solved by memoizing the results after the
lazy value is resolved, and then it could unref the IrAnalyze.

ZigVars that are determined to be comptime const, could have their
const_value set to that value, instead of using the mem_slot_index
mechanism. This would prevent an IrAnalyze ref in some cases.
2019-12-01 01:13:21 -05:00
.builds ci: avoid leaking oauth access token 2019-11-03 14:55:21 -05:00
.github funding: I've been accepted into the GitHub Sponsors program 2019-07-11 13:00:39 -04:00
ci ci: --no-mime-magic 2019-11-25 14:58:45 -05:00
cmake msvc: reduce inlining aggressivity to workaround a codegen bug in cl.exe cf. #3024 2019-10-16 19:04:50 -04:00
deps Revert LLD patch 2019-10-12 10:57:11 +02:00
doc docs: this statement was in the wrong section 2019-11-29 12:41:07 -05:00
lib Merge pull request #3808 from LemonBoy/i386-for-ya 2019-11-30 22:00:00 -05:00
src sometimes free stuff from Zig IR pass 1 2019-12-01 01:13:21 -05:00
src-self-hosted move `std.fs.Dir.cwd` to `std.fs.cwd` 2019-11-30 15:35:27 -05:00
test Merge pull request #3808 from LemonBoy/i386-for-ya 2019-11-30 22:00:00 -05:00
tools Avoid deprecated cwd-based functions for opening directories, preferring to open explicitly relative to `Dir.cwd()`. 2019-11-25 23:46:48 -05:00
.gitattributes git, I love you, but please stop mangling my files 2019-09-22 18:11:55 -04:00
.gitignore fix .gitignore file and add commit missing std lib file 2019-02-26 18:33:27 -05:00
CMakeLists.txt stage1: avoid building empty memory_profiling.cpp 2019-11-25 19:08:36 -05:00
CONTRIBUTING.md add -DZIG_SKIP_INSTALL_LIB_FILES cmake option 2019-09-26 02:21:29 -04:00
LICENSE add license 2015-08-05 16:22:18 -07:00
README.md README: update the short description of what zig is 2019-11-13 13:44:19 -05:00
build.zig self hosted compiler: final small fixes to get it compiling 2019-11-24 10:24:47 +02:00

README.md

ZIG

A general-purpose programming language for maintaining robust, optimal, and reusable code.

Resources

Building from Source

Build Status

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 == 9.x, compiled with the same gcc or clang version above
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 == 9.x

Instructions

POSIX
mkdir build
cd build
cmake ..
make install
MacOS
brew install cmake llvm@9
brew outdated llvm@9 || brew upgrade llvm@9
mkdir build
cd build
cmake .. -DCMAKE_PREFIX_PATH=$(brew --prefix llvm)
make install
Windows

See https://github.com/ziglang/zig/wiki/Building-Zig-on-Windows

Stage 2: Build Self-Hosted Zig from Zig Source Code

Note: Stage 2 compiler is not complete. Beta users of Zig should use the Stage 1 compiler for now.

Dependencies are the same as Stage 1, except now you can use stage 1 to compile Zig code.

bin/zig build --prefix $(pwd)/stage2

This produces ./stage2/bin/zig which can be used for testing and development. Once it is feature complete, it will be used to build stage 3 - the final compiler binary.

Stage 3: Rebuild Self-Hosted Zig Using the Self-Hosted Compiler

Note: Stage 2 compiler is not yet able to build Stage 3. Building Stage 3 is not yet supported.

Once the self-hosted compiler can build itself, this will be the actual compiler binary that we will install to the system. Until then, users should use stage 1.

Debug / Development Build

./stage2/bin/zig build --prefix $(pwd)/stage3

Release / Install Build

./stage2/bin/zig build install -Drelease