1 files changed, 109 insertions, 0 deletions
diff --git a/helpers/llvm-build b/helpers/llvm-build
new file mode 100755
index 0000000..8d2fab4
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+++ b/helpers/llvm-build
@@ -0,0 +1,109 @@
+#!/usr/bin/env bash
+
+# This script helps you build LLVM. It can update the repositories first,
+# run the check-all after and even install it in your system. Since the
+# LLVM tree changes constantly, it's recommended that you run this script
+# with update+check at least once a week, and most importantly, before you
+# begin a big change, to make sure the repos are current and stable.
+
+. llvm-common
+
+## CMD line options and defaults
+CPUs=`grep -c proc /proc/cpuinfo`
+build_dir=$LLVM_BLD
+install_dir=$LLVM_BLD/../../install
+build_type=Release
+shared=
+targets=
+prog=`basename $0`
+syntax="Syntax: $prog [-u(pdate)] [-c(check-all)] [-i(nstall)] [-d(debug)]"
+update=false
+check=false
+master=false
+debug=false
+inst=false
+while getopts "ucimd" opt; do
+  case $opt in
+    u)
+      update=true
+      ;;
+    c)
+      check=true
+      ;;
+    i)
+      inst=true
+      ;;
+    m)
+      master=true
+      ;;
+    d)
+      debug=true
+      build_dir=$LLVM_BLD/../debug
+      ;;
+    *)
+      echo $syntax
+      exit 1
+      ;;
+  esac
+done
+
+## Run llvm-sync before
+if $update; then
+	echo " + Updating Repositories"
+  safe_run llvm-sync -a
+fi
+
+## Make sure all branches are on master
+if $master; then
+  echo " + Checking out master"
+  safe_run llvm-branch master
+fi
+
+## Choose between make and ninja
+make=make
+ninja=
+if which ninja 2>&1 > /dev/null; then
+  make=ninja
+  ninja="-G Ninja"
+fi
+
+## Debug mode, make it lighter
+if $debug; then
+  build_type=Debug
+  shared=-DBUILD_SHARED_LIBS=True
+  targets=-DLLVM_TARGETS_TO_BUILD="ARM;X86;AArch64"
+fi
+
+## Make sure sure build dir is there
+if [ ! -d $build_dir ]; then
+  mkdir -p $builddir
+fi
+cd $build_dir
+
+## Re-run CMake file files are damaged / not there
+if [ ! -f build.ninja ] && [ ! -f Makefile ]; then
+	echo " + Configuring Build"
+  safe_run cmake $ninja $LLVM_SRC \
+            -DCMAKE_BUILD_TYPE=$build_type \
+            -DLLVM_BUILD_TESTS=True \
+            -DLLVM_ENABLE_ASSERTIONS=True \
+            -DPYTHON_EXECUTABLE=/usr/bin/python2 \
+            -DCMAKE_INSTALL_PREFIX=$install_dir \
+            $targets $shared
+fi
+
+## Build
+echo " + Building LLVM"
+safe_run $make -j$CPUs
+
+## Check
+if $check; then
+  echo " + Running Tests"
+  safe_run $make check-all
+fi
+
+## Install
+if $inst; then
+  echo " + Installing on the System"
+  safe_run $make install
+fi