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Handle __builtin_expect (#268) 
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README.md

Build instructions

Requirements

  • Working C and C++ toolchains(compiler, linker)
  • cmake
  • make or ninja

1. Clone Polygeist

git clone --recursive https://github.com/llvm/Polygeist
cd Polygeist

2. Install LLVM, MLIR, Clang, and Polygeist

Option 1: Using pre-built LLVM, MLIR, and Clang

Polygeist can be built by providing paths to a pre-built MLIR and Clang toolchain.

  1. Build LLVM, MLIR, and Clang:
mkdir llvm-project/build
cd llvm-project/build
cmake -G Ninja ../llvm \
  -DLLVM_ENABLE_PROJECTS="mlir;clang" \
  -DLLVM_TARGETS_TO_BUILD="host" \
  -DLLVM_ENABLE_ASSERTIONS=ON \
  -DCMAKE_BUILD_TYPE=DEBUG
ninja
ninja check-mlir
  1. Build Polygeist:
mkdir build
cd build
cmake -G Ninja .. \
  -DMLIR_DIR=$PWD/../llvm-project/build/lib/cmake/mlir \
  -DCLANG_DIR=$PWD/../llvm-project/build/lib/cmake/clang \
  -DLLVM_TARGETS_TO_BUILD="host" \
  -DLLVM_ENABLE_ASSERTIONS=ON \
  -DCMAKE_BUILD_TYPE=DEBUG
ninja
ninja check-polygeist-opt && ninja check-cgeist

Option 2: Using unified LLVM, MLIR, Clang, and Polygeist build

Polygeist can also be built as an external LLVM project using LLVM_EXTERNAL_PROJECTS.

  1. Build LLVM, MLIR, Clang, and Polygeist:
mkdir build
cd build
cmake -G Ninja ../llvm-project/llvm \
  -DLLVM_ENABLE_PROJECTS="clang;mlir" \
  -DLLVM_EXTERNAL_PROJECTS="polygeist" \
  -DLLVM_EXTERNAL_POLYGEIST_SOURCE_DIR=.. \
  -DLLVM_TARGETS_TO_BUILD="host" \
  -DLLVM_ENABLE_ASSERTIONS=ON \
  -DCMAKE_BUILD_TYPE=DEBUG
ninja
ninja check-polygeist-opt && ninja check-cgeist

ninja check-polygeist-opt runs the tests in Polygeist/test/polygeist-opt ninja check-cgeist runs the tests in Polygeist/tools/cgeist/Test