Building and Installing Polly

-You can build Polly with Ninja or cmake. -Other generators build systems can also be used, but are not supported. +You can build Polly with cmake and your preferred geneator (e.g. Ninja, make, Visual Studio, etc.). -

Get the code

 git clone https://github.com/llvm/llvm-project.git
@@ -30,15 +28,7 @@
 git clone --depth 1 https://github.com/llvm/llvm-project.git

Build Polly (with Ninja)

- -

-mkdir build && cd build
-cmake -G Ninja '-DLLVM_ENABLE_PROJECTS=clang;polly' ../llvm
-ninja
-

- -

Build Polly (with cmake)

Build Polly

 mkdir build && cd build
@@ -46,19 +36,35 @@
 cmake --build .

Test Polly (with Ninja)

+You can also pass arguments to cmake to specify a particular generator (e.g. -G Ninja) or the build type (-DCMAKE_BUILD_TYPE=Release). + +If you just want to play around with Polly, it is recommended to do a Release+Assert build by passing +-DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=ON. + +

Test Polly

ninja check Polly

cmake --build . --target check-polly

+ +

Using Polly

+ +Suppose that you want to compile a program hello.c using Polly. + +To compile it with Polly (in the build folder), you can run: + +

+bin/clang -O3 -mllvm -polly hello.c
+

Troubleshooting

- If you run out of memory when building, lower the concurrency of Ninja (e.g. ninja -j 2 ). + If you run out of memory when building with Ninja, try lowering the concurrency of Ninja (e.g. ninja -j 2 ). More tips and tricks to building and using LLVM can be found here.

For more information on getting started with Polly and LLVM in general, see LLVM's getting started docs. +You can also read the release notes here.