prepare_tvm.sh

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#!/bin/sh

LLVM_VERSION="8.0.0"
LLVM_ROOT="http://releases.llvm.org/${LLVM_VERSION}/"
LLVM_PKG="clang+llvm-${LLVM_VERSION}-x86_64-linux-gnu"

os=`uname`
if [ "$os" = "Linux" ] && [ "$(arch)" = "x86_64" ]; then
    DISTRIB_ID=$(cat /etc/*-release | grep DISTRIB_ID | sed 's/DISTRIB_ID=//g' | tr '[:upper:]' '[:lower:]')
    DISTRIB_RELEASE=$(cat /etc/*-release | grep DISTRIB_RELEASE | sed 's/DISTRIB_RELEASE=//g' | tr '[:upper:]' '[:lower:]')
    if [ "$DISTRIB_ID" = "ubuntu" ]; then
        LLVM_PKG=${LLVM_PKG}-${DISTRIB_ID}-${DISTRIB_RELEASE}
    else
        echo "Downloading LLVM only supports Ubuntu. Please download manually."
        exit 1
    fi
else
    echo "Cannot identify operating system. Try downloading LLVM manually."
    exit 1
fi

LLVM_URL=${LLVM_ROOT}${LLVM_PKG}.tar.xz

TVM_PATH=`dirname $0`/../../3rdparty/tvm
DST=${TVM_PATH}/build
rm -rf $DST
mkdir -p $DST
DST=`cd $DST; pwd`

if [ -x "$(command -v curl)" ]; then
    curl -L -o "${DST}/${LLVM_PKG}.tar.xz" "$LLVM_URL"
elif [ -x "$(command -v wget)" ]; then
    wget -O "${DST}/${LLVM_PKG}.tar.xz" "$LLVM_URL"
else
    echo "curl or wget not available"
    exit 1
fi

if [ \! $? ]; then
    echo "Download from $LLVM_URL to $DST failed"
    exit 1
fi

tar -xf "$DST/${LLVM_PKG}.tar.xz" -C $DST
mv $DST/${LLVM_PKG} $DST/llvm
echo "Downloaded and unpacked LLVM libraries to $DST"