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How to hand-compile LLVM for VE

Table of Contents

Prerequisites

  • cmake (cmake3 in RHEL7)
  • ninja (ninja-build in RHEL7)
  • gcc 5.1 or above (devtoolset-8 in RHEL7)

Retrieve source codes

First, check out llvm, clang, and other libraries like below.

$ mkdir work $ cd work $ git clone https://github.com/SXAuroraTSUBASAResearch/llvm.git

llvm -b develop
$ git clone https://github.com/SXAuroraTSUBASAResearch/clang.git
llvm/tools/clang -b develop
$ git clone https://github.com/SXAuroraTSUBASAResearch/compiler-rt.git
llvm/projects/compiler-rt -b develop
$ git clone https://github.com/SXAuroraTSUBASAResearch/libunwind.git
llvm/projects/libunwind -b develop
$ git clone https://github.com/SXAuroraTSUBASAResearch/libcxx.git
llvm/projects/libcxx -b develop
$ git clone https://github.com/SXAuroraTSUBASAResearch/libcxxabi.git
llvm/projects/libcxxabi -b develop
$ git clone https://github.com/SXAuroraTSUBASAResearch/openmp.git
llvm/projects/openmp -b develop

Then, compile clang/llvm with ninja and install it.

$ cd work $ mkdir build $ cd build $ export DEST=$HOME/.local $ cmake3 -G Ninja

-DCMAKE_BUILD_TYPE="Release" -DLLVM_TARGETS_TO_BUILD="VE;X86" -DCMAKE_INSTALL_PREFIX=$DEST ../llvm

$ ninja-build $ ninja-build install

How to cross-compile CSU for NEC SX-Aurora VE

First, check out ve-csu like below.

$ cd work $ git clone https://github.com/SXAuroraTSUBASAResearch/ve-csu.git

ve-csu

Then, cross-compile it with clang/llvm for VE and install it.

$ cd work/ve-csu $ export DEST=$HOME/.local $ make TARGET=ve-linux $ make DEST=$DEST/lib/clang/9.0.0/lib/linux/ve install

How to cross-compile Compiler-RT for NEC SX-Aurora VE

Cross-compile compiler-rt with clang/llvm for VE and install it.

$ cd work $ mkdir build-compiler-rt $ cd build-compiler-rt $ export DEST=$HOME/.local $ cmake3 -G Ninja

-DCOMPILER_RT_BUILD_BUILTINS=ON -DCOMPILER_RT_BUILD_SANITIZERS=OFF -DCOMPILER_RT_BUILD_XRAY=OFF -DCOMPILER_RT_BUILD_LIBFUZZER=OFF -DCOMPILER_RT_BUILD_PROFILE=OFF -DBUILD_SHARED_LIBS=ON -DCMAKE_C_COMPILER=$DEST/bin/clang -DCMAKE_C_COMPILER_TARGET="ve-linux" -DCMAKE_ASM_COMPILER_TARGET="ve-linux" -DCMAKE_AR=$DEST/bin/llvm-ar -DCMAKE_RANLIB=$DEST/bin/llvm-ranlib -DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON -DLLVM_CONFIG_PATH=$DEST/bin/llvm-config -DCMAKE_BUILD_TYPE="Release" -DCMAKE_INSTALL_PREFIX=$DEST/lib/clang/9.0.0/ -DCMAKE_CXX_FLAGS="-nostdlib" -DCMAKE_CXX_FLAGS_RELEASE="-O3 -fno-vectorize -fno-slp-vectorize" -DCMAKE_C_FLAGS="-nostdlib" -DCMAKE_C_FLAGS_RELEASE="-O3 -fno-vectorize -fno-slp-vectorize" ../llvm/projects/compiler-rt

$ ninja-build $ ninja-build install

How to cross-compile other libraries for NEC SX-Aurora VE

Cross-compile libunwind with clang/llvm for VE and install it.

$ cd work $ mkdir build-libunwind $ cd build-libunwind $ export DEST=$HOME/.local $ cmake3 -G Ninja

-DLIBUNWIND_TARGET_TRIPLE="ve-linux" -DCMAKE_C_COMPILER=$DEST/bin/clang -DCMAKE_CXX_COMPILER=$DEST/bin/clang++ -DCMAKE_AR=$DEST/bin/llvm-ar -DCMAKE_RANLIB=$DEST/bin/llvm-ranlib -DCMAKE_C_COMPILER_TARGET="ve-linux" -DCMAKE_CXX_COMPILER_TARGET="ve-linux" -DLLVM_CONFIG_PATH=$DEST/bin/llvm-config -DLLVM_ENABLE_LIBCXX=ON -DCMAKE_BUILD_TYPE="Release" -DCMAKE_INSTALL_PREFIX=$DEST/lib/clang/9.0.0/ -DLIBUNWIND_LIBDIR_SUFFIX=/linux/ve/ -DCMAKE_CXX_FLAGS="-nostdlib" -DCMAKE_CXX_FLAGS_RELEASE="-O3 -fno-vectorize -fno-slp-vectorize" -DCMAKE_C_FLAGS="-nostdlib" -DCMAKE_C_FLAGS_RELEASE="-O3 -fno-vectorize -fno-slp-vectorize" ../llvm/projects/libunwind

$ ninja-build $ ninja-build install

Cross-compile libcxxabi with clang/llvm for VE and install it.

$ cd work $ mkdir build-libcxxabi $ cd build-libcxxabi $ export DEST=$HOME/.local $ cmake3 -G Ninja

-DCMAKE_C_COMPILER=$DEST/bin/clang -DCMAKE_CXX_COMPILER=$DEST/bin/clang++ -DCMAKE_AR=$DEST/bin/llvm-ar -DCMAKE_RANLIB=$DEST/bin/llvm-ranlib -DCMAKE_C_COMPILER_TARGET="ve-linux" -DCMAKE_CXX_COMPILER_TARGET="ve-linux" -DLLVM_CONFIG_PATH=$DEST/bin/llvm-config -DCMAKE_BUILD_TYPE="Release" -DCMAKE_INSTALL_PREFIX=$DEST/lib/clang/9.0.0/ -DLIBCXXABI_LIBDIR_SUFFIX=/linux/ve/ -DLIBCXXABI_USE_LLVM_UNWINDER=YES -DCMAKE_CXX_FLAGS="-nostdlib++" -DCMAKE_CXX_FLAGS_RELEASE="-O3 -fno-vectorize -fno-slp-vectorize" -DCMAKE_C_FLAGS="-nostdlib++" -DCMAKE_C_FLAGS_RELEASE="-O3 -fno-vectorize -fno-slp-vectorize" -DLLVM_PATH=../llvm -DLLVM_MAIN_SRC_DIR=../llvm -DLLVM_ENABLE_LIBCXX=True -DLIBCXXABI_USE_COMPILER_RT=True -DLIBCXXABI_HAS_NOSTDINCXX_FLAG=True ../llvm/projects/libcxxabi

$ ninja-build $ ninja-build install

Cross-compile libcxx with clang/llvm for VE and install it.

$ cd work $ mkdir build-libcxx $ cd build-libcxx $ export DEST=$HOME/.local $ cmake3 -G Ninja

-DLIBCXX_USE_COMPILER_RT=True -DLIBCXX_TARGET_TRIPLE="ve-linux" -DCMAKE_C_COMPILER=$DEST/bin/clang -DCMAKE_CXX_COMPILER=$DEST/bin/clang++ -DCMAKE_AR=$DEST/bin/llvm-ar -DCMAKE_RANLIB=$DEST/bin/llvm-ranlib -DCMAKE_C_COMPILER_TARGET="ve-linux" -DCMAKE_CXX_COMPILER_TARGET="ve-linux" -DLLVM_CONFIG_PATH=$DEST/bin/llvm-config -DCMAKE_BUILD_TYPE="Release" -DCMAKE_INSTALL_PREFIX=$DEST/lib/clang/9.0.0/ -DLIBCXX_LIBDIR_SUFFIX=/linux/ve/ -DCMAKE_C_FLAGS="-nostdlib++" -DCMAKE_C_FLAGS_RELEASE="-O3 -fno-vectorize -fno-slp-vectorize" -DCMAKE_CXX_FLAGS="-nostdlib++" -DCMAKE_CXX_FLAGS_RELEASE="-O3 -fno-vectorize -fno-slp-vectorize" ../llvm/projects/libcxx

$ ninja-build $ ninja-build install

Cross-compile OpenMP with clang/llvm for VE and install it.

$ cd work $ mkdir build-openmp $ cd build-openmp $ export DEST=$HOME/.local $ cmake3 -G Ninja

-DCMAKE_C_COMPILER=$DEST/bin/clang -DCMAKE_CXX_COMPILER=$DEST/bin/clang++ -DCMAKE_AR=$DEST/bin/llvm-ar -DCMAKE_RANLIB=$DEST/bin/llvm-ranlib -DCMAKE_C_COMPILER_TARGET="ve-linux" -DCMAKE_CXX_COMPILER_TARGET="ve-linux" -DCMAKE_BUILD_TYPE="Release" -DCMAKE_INSTALL_PREFIX=$DEST/lib/clang/9.0.0/ -DOPENMP_LIBDIR_SUFFIX=/linux/ve -DCMAKE_CXX_FLAGS="" -DCMAKE_CXX_FLAGS_RELEASE="-O3 -fno-vectorize -fno-slp-vectorize -mllvm -combiner-use-vector-store=false" -DCMAKE_C_FLAGS="" -DCMAKE_C_FLAGS_RELEASE="-O3 -fno-vectorize -fno-slp-vectorize -mllvm -combiner-use-vector-store=false" -DLIBOMP_ARCH="ve" ../llvm/projects/openmp

$ ninja-build $ ninja-build install