Unblock merge

LICENSE.txt

@@ -0,0 +1,279 @@
+==============================================================================
+The LLVM Project is under the Apache License v2.0 with LLVM Exceptions:
+==============================================================================
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+==============================================================================
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+==============================================================================
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+==============================================================================
+Legacy LLVM License (https://llvm.org/docs/DeveloperPolicy.html#legacy):
+==============================================================================
+University of Illinois/NCSA
+Open Source License
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+All rights reserved.
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+

README.md

@@ -1,3 +1,11 @@
+# Apple's fork of llvm-project
+
+This is Apple's fork of llvm-project.  For more information on Apple's
+branching scheme, please see
+[apple-docs/AppleBranchingScheme.md](https://github.com/apple/llvm-project/tree/apple/main/apple-docs/AppleBranchingScheme.md).
+
+The LLVM project's main README follows.
+
 # The LLVM Compiler Infrastructure
 
 This directory and its sub-directories contain source code for LLVM,

apple-ci/clang/am/build.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -eu
+
+SRC_DIR=$PWD/llvm-project
+BUILD_DIR=$PWD/build
+
+for arg; do
+  case $arg in
+    --src=*) SRC_DIR="${arg##*=}"; shift ;;
+    --build=*) BUILD_DIR="${arg##*=}"; shift ;;
+    *) echo "Incorrect usage." >&2; exit 1 ;;
+  esac
+done
+
+echo
+echo "SRC_DIR . . . . = $SRC_DIR"
+echo "BUILD_DIR . . . = $BUILD_DIR"
+echo
+
+NINJA=$(xcrun -f ninja)
+
+HOST_COMPILER_PATH=$(dirname $(xcrun -f clang))
+
+mkdir -p $BUILD_DIR && cd $_
+set -x
+xcrun cmake -G Ninja \
+ -DCMAKE_MAKE_PROGRAM=$NINJA \
+ -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=ON \
+ -DCMAKE_C_COMPILER=$HOST_COMPILER_PATH/clang \
+ -DCMAKE_CXX_COMPILER=$HOST_COMPILER_PATH/clang++ \
+ -DLLVM_TARGETS_TO_BUILD="X86;ARM;AArch64" \
+ -DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra;compiler-rt;lldb" \
+ -DLLDB_INCLUDE_TESTS=OFF \
+ $SRC_DIR/llvm && $NINJA