diff --git a/Dockerfile.llvm b/Dockerfile.llvm
new file mode 100644
index 0000000..15c5b3c
--- /dev/null
+++ b/Dockerfile.llvm
@@ -0,0 +1,14 @@
+FROM ubuntu:jammy
+
+RUN apt-get update
+RUN apt-get install -y \
+    build-essential \
+    clang-14 \
+    clang++-14 \
+    cmake \
+    libc6-dev-i386 \
+    python3-pip \
+    python3-distutils \
+    vim \
+    ninja-build \
+    git
diff --git a/Jenkinsfile b/Jenkinsfile
new file mode 100644
index 0000000..014c1f4
--- /dev/null
+++ b/Jenkinsfile
@@ -0,0 +1,85 @@
+#!groovy
+
+/**
+ * This Jenkinsfile will only work in a Swift Navigation build/CI environment, as it uses
+ * non-public docker images and pipeline libraries.
+ */
+
+// Use 'ci-jenkins@somebranch' to pull shared lib from a different branch than the default.
+// Default is configured in Jenkins and should be from "stable" tag.
+@Library("ci-jenkins") import com.swiftnav.ci.*
+
+def context = new Context(context: this)
+context.setRepo("swift-toolchains")
+
+/**
+ * - Mount the refrepo to keep git operations functional on a repo that uses ref-repo during clone
+ **/
+String dockerMountArgs = "-v /mnt/efs/refrepo:/mnt/efs/refrepo"
+
+pipeline {
+    // Override agent in each stage to make sure we don't share containers among stages.
+    agent any
+    options {
+        // Make sure job aborts after 2 hours if hanging.
+        timeout(time: 4, unit: 'HOURS')
+        timestamps()
+        // Keep builds for 7 days.
+        buildDiscarder(logRotator(daysToKeepStr: '7'))
+    }
+
+    stages {
+        stage('Build') {
+            parallel {
+                stage('llvm aarch64 darwin') {
+                    agent {
+                        node('macos-arm64')
+                    }
+                    steps {
+                        sh('''
+                            git clone https://github.com/llvm/llvm-project --branch=llvmorg-14.0.0 --single-branch
+                            cd llvm-project
+
+                            mkdir build
+                            cd build
+
+                            cmake -GNinja ../llvm \
+                                -DCMAKE_INSTALL_PREFIX=../out/ \
+                                -DCMAKE_C_COMPILER_LAUNCHER=sccache \
+                                -DCMAKE_CXX_COMPILER_LAUNCHER=sccache \
+                                -DCMAKE_OSX_ARCHITECTURES='arm64' \
+                                -DCMAKE_C_COMPILER=`which clang` \
+                                -DCMAKE_CXX_COMPILER=`which clang++` \
+                                -DCMAKE_BUILD_TYPE=Release \
+                                -DCMAKE_INSTALL_PREFIX=../out \
+                                -DLLVM_ENABLE_PROJECTS='clang' \
+                                -DLLVM_DISTRIBUTION_COMPONENTS='clang' \
+                                -C ../../llvm/Apple-stage1.cmake
+                            ninja help
+                            ninja stage2-install-distribution
+                        ''')
+                        uploadDistribution("clang+llvm-14.0.0-arm64-apple-darwin", context)
+                    }
+                    post {
+                        cleanup {
+                            cleanWs()
+                        }
+                    }
+                }
+            }
+        }
+    }
+    post {
+        always {
+            cleanWs()
+        }
+    }
+}
+
+def uploadDistribution(name, context) {
+    sh("""
+        mkdir -p tar/${name}/
+        cp -rH llvm-project/out/* tar/${name}/
+    """)
+    tar(file: "${name}.tar.gz", dir: 'tar', archive: true)
+}
diff --git a/llvm/Apple-stage1.cmake b/llvm/Apple-stage1.cmake
new file mode 100644
index 0000000..5e55231
--- /dev/null
+++ b/llvm/Apple-stage1.cmake
@@ -0,0 +1,62 @@
+# This file sets up a CMakeCache for Apple-style bootstrap builds. It can be
+# used on any Darwin system to approximate Apple Clang builds.
+
+if($ENV{DT_TOOLCHAIN_DIR})
+  set(CMAKE_INSTALL_PREFIX $ENV{DT_TOOLCHAIN_DIR}/usr/)
+else()
+  set(CMAKE_INSTALL_PREFIX /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.toolchain/usr/)
+endif()
+
+set(LLVM_ENABLE_PROJECTS "clang;clang-tools-extra" CACHE STRING "")
+
+set(LLVM_TARGETS_TO_BUILD AArch64 CACHE STRING "")
+set(CLANG_VENDOR Apple CACHE STRING "")
+set(LLVM_INCLUDE_TESTS OFF CACHE BOOL "")
+set(LLVM_INCLUDE_EXAMPLES OFF CACHE BOOL "")
+set(LLVM_INCLUDE_UTILS OFF CACHE BOOL "")
+set(LLVM_INCLUDE_DOCS OFF CACHE BOOL "")
+set(CLANG_INCLUDE_TESTS OFF CACHE BOOL "")
+set(COMPILER_RT_INCLUDE_TESTS OFF CACHE BOOL "")
+set(COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL "")
+set(CMAKE_MACOSX_RPATH ON CACHE BOOL "")
+set(LLVM_ENABLE_ZLIB OFF CACHE BOOL "")
+set(LLVM_ENABLE_BACKTRACES OFF CACHE BOOL "")
+set(CLANG_PLUGIN_SUPPORT OFF CACHE BOOL "")
+set(CLANG_SPAWN_CC1 ON CACHE BOOL "")
+set(CLANG_BOOTSTRAP_PASSTHROUGH
+  CMAKE_OSX_ARCHITECTURES
+  CACHE STRING "")
+
+# Disabling embedded darwin compiler-rt on stage1 builds is required because we
+# don't build stage1 to support arm code generation.
+set(COMPILER_RT_ENABLE_IOS OFF CACHE BOOL "")
+set(COMPILER_RT_ENABLE_WATCHOS OFF CACHE BOOL "")
+set(COMPILER_RT_ENABLE_TVOS OFF CACHE BOOL "")
+
+set(BOOTSTRAP_LLVM_ENABLE_LTO ON CACHE BOOL "")
+set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "")
+
+set(LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS OFF CACHE BOOL "")
+set(LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS ON CACHE BOOL "")
+
+set(CLANG_BOOTSTRAP_TARGETS
+  generate-order-file
+  check-all
+  check-llvm
+  check-clang
+  llvm-config
+  test-suite
+  test-depends
+  llvm-test-depends
+  clang-test-depends
+  distribution
+  install-distribution
+  install-xcode-toolchain
+  install-distribution-toolchain
+  clang CACHE STRING "")
+
+#bootstrap
+set(CLANG_ENABLE_BOOTSTRAP ON CACHE BOOL "")
+set(CLANG_BOOTSTRAP_CMAKE_ARGS
+  -C ${CMAKE_CURRENT_LIST_DIR}/Apple-stage2.cmake
+  CACHE STRING "")
\ No newline at end of file
diff --git a/llvm/Apple-stage2-ThinLTO.cmake b/llvm/Apple-stage2-ThinLTO.cmake
new file mode 100644
index 0000000..54e54e3
--- /dev/null
+++ b/llvm/Apple-stage2-ThinLTO.cmake
@@ -0,0 +1,6 @@
+# This file sets up a CMakeCache for Apple-style stage2 ThinLTO bootstrap. It is
+# specified by the stage1 build.
+
+
+set(LLVM_ENABLE_LTO THIN CACHE BOOL "")
+include(${CMAKE_CURRENT_LIST_DIR}/Apple-stage2.cmake)
diff --git a/llvm/Apple-stage2.cmake b/llvm/Apple-stage2.cmake
new file mode 100644
index 0000000..0ca1fd4
--- /dev/null
+++ b/llvm/Apple-stage2.cmake
@@ -0,0 +1,46 @@
+# This file sets up a CMakeCache for Apple-style stage2 bootstrap. It is
+# specified by the stage1 build.
+
+set(LLVM_ENABLE_PROJECTS "clang;clang-tools-extra" CACHE STRING "")
+set(LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
+
+set(LLVM_TARGETS_TO_BUILD AArch64 CACHE STRING "") 
+set(PACKAGE_VENDOR Apple CACHE STRING "")
+
+set(CMAKE_MACOSX_RPATH ON CACHE BOOL "")
+
+set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "")
+set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O3 -gline-tables-only -DNDEBUG" CACHE STRING "")
+set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O3 -gline-tables-only -DNDEBUG" CACHE STRING "")
+
+# Generating Xcode toolchains is useful for developers wanting to build and use
+# clang without installing over existing tools.
+# set(LLVM_CREATE_XCODE_TOOLCHAIN ON CACHE BOOL "")
+
+# setup toolchain
+set(LLVM_INSTALL_TOOLCHAIN_ONLY ON CACHE BOOL "")
+set(LLVM_TOOLCHAIN_TOOLS
+  llvm-ar
+  llvm-cov
+  llvm-dwp
+  llvm-nm
+  llvm-objcopy
+  llvm-objdump
+  llvm-profdata
+  llvm-strip
+  llvm-symbolizer
+  CACHE STRING "")
+
+  set(LLVM_DISTRIBUTION_COMPONENTS
+    clang
+    clang-format
+    builtins
+    runtimes
+    clang-resource-headers
+    # clang-tidy
+    ${LLVM_TOOLCHAIN_TOOLS}
+    CACHE STRING "")
+
+# test args
+
+set(LLVM_LIT_ARGS "--xunit-xml-output=testresults.xunit.xml -v" CACHE STRING "")
diff --git a/patches/0003-Add-missing-include-diagnosed-by-the-modules-build.patch b/patches/0003-Add-missing-include-diagnosed-by-the-modules-build.patch
new file mode 100644
index 0000000..4dba31b
--- /dev/null
+++ b/patches/0003-Add-missing-include-diagnosed-by-the-modules-build.patch
@@ -0,0 +1,24 @@
+From 4904e853130825d1c6fa93faf289e1ccf2f01c68 Mon Sep 17 00:00:00 2001
+From: Adrian Prantl <aprantl@apple.com>
+Date: Wed, 2 Feb 2022 09:08:11 -0800
+Subject: [PATCH] Add missing include diagnosed by the modules build.
+
+---
+ llvm/include/llvm/Transforms/InstCombine/InstCombine.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/llvm/include/llvm/Transforms/InstCombine/InstCombine.h b/llvm/include/llvm/Transforms/InstCombine/InstCombine.h
+index 6dee38c83b36..35a3a8c3218b 100644
+--- a/llvm/include/llvm/Transforms/InstCombine/InstCombine.h
++++ b/llvm/include/llvm/Transforms/InstCombine/InstCombine.h
+@@ -18,6 +18,7 @@
+ 
+ #include "llvm/IR/Function.h"
+ #include "llvm/IR/PassManager.h"
++#include "llvm/Pass.h"
+ 
+ #define DEBUG_TYPE "instcombine"
+ #include "llvm/Transforms/Utils/InstructionWorklist.h"
+-- 
+2.34.1
+