101 lines
2.4 KiB
Markdown
101 lines
2.4 KiB
Markdown
# python bindings for llvm JIT for EGAD (xo-pyjit)
|
|
|
|
## Getting Started
|
|
|
|
### Build + install `xo-cmake` dependency
|
|
|
|
- [github/Rconybea/xo-cmake](https://github.com/Rconybea/xo-cmake)
|
|
|
|
Installs a few cmake ingredients, along with a build assistant `xo-build` for XO projects such as this one.
|
|
|
|
### build + install other necessary XO dependencies
|
|
```
|
|
$ xo-build --clone --configure --build --install xo-indentlog
|
|
$ xo-build --clone --configure --build --install xo-refnct
|
|
$ xo-build --clone --configure --build --install xo-subsys
|
|
$ xo-build --clone --configure --build --install xo-reflect
|
|
$ xo-build --clone --configure --build --install xo-expression
|
|
$ xo-build --clone --configure --build --install xo-jit
|
|
$ xo-build --clone --configure --build --install xo-pyutil
|
|
$ xo-build --clone --configure --build --install xo-pyexpression
|
|
```
|
|
note: can use `xo-build -n` to dry-run here
|
|
|
|
### copy `xo-pyjit` repository locally
|
|
```
|
|
$ xo-build --clone xo-pyjit
|
|
```
|
|
|
|
or equivalently
|
|
```
|
|
$ git clone git@github.com:Rconybea/xo-pyjit.git
|
|
```
|
|
|
|
### build + install xo-pyjit
|
|
```
|
|
$ xo-build --configure --build --install xo-pyjit
|
|
```
|
|
|
|
or equivalently:
|
|
|
|
```
|
|
$ PREFIX=/usr/local # or preferred install location
|
|
$ cmake -DCMAKE_INSTALL_PREFIX=$PREFIX -S xo-pyjit -B xo-pyjit/.build
|
|
$ cmake --build xo-pyjit/.build -j
|
|
$ cmake --install xo-pyjit/.build
|
|
```
|
|
(also see .github/workflows/main.yml)
|
|
|
|
## Examples
|
|
|
|
Assumes `xo-pyjit` installed to `~/local2/lib`,
|
|
i.e. built with `PREFIX=~/local2`.
|
|
```
|
|
PYTHONPATH=~/local2/lib:$PYTHONPATH python
|
|
>>> from xo_pyexpression import *
|
|
>>> from xo_pyjit import *
|
|
>>> x=make_constant(3.14159)
|
|
>>> jit=Jit.make()
|
|
>>> code=jit.codegen(x)
|
|
>>> x.print
|
|
double 3.141600e+00
|
|
```
|
|
|
|
## Development
|
|
|
|
### use from build tree
|
|
|
|
Limited utility: requires that supporting libraries (e.g. `xo_pyexpression`) appear in PYTHONPATH
|
|
```
|
|
$ cd xo-pyjit/.build/src/pyjit
|
|
$ python
|
|
>>> import xo_pyjit
|
|
```
|
|
|
|
### build for unit test coverage
|
|
```
|
|
$ cd xo-pyexpression
|
|
$ cmake -DCMAKE_BUILD_TYPE=coverage -DENABLE_TESTING=on -S . -B .build-ccov
|
|
$ cmake --build .build-ccov -j
|
|
```
|
|
|
|
### LSP (language server) support
|
|
|
|
LSP looks for compile commands in the root of the source tree;
|
|
while Cmake creates them in the root of its build directory.
|
|
|
|
```
|
|
$ cd xo-pyexpression
|
|
$ ln -s .build/compile_commands.json # supply compile commands to LSP
|
|
```
|
|
|
|
### display cmake variables
|
|
|
|
- `-L` list variables
|
|
- `-A` include 'advanced' variables
|
|
- `-H` include help text
|
|
|
|
```
|
|
$ cd xo-pyjit/.build
|
|
$ cmake -LAH
|
|
```
|