Squashed 'llvm/' content from commit 62a18d1

git-subtree-dir: llvm
git-subtree-split: 62a18d1

.arcconfig

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+{
+  "project_id" : "llvm",
+  "conduit_uri" : "http://llvm-reviews.chandlerc.com/"
+}

.gitignore

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+#==============================================================================#
+# This file specifies intentionally untracked files that git should ignore.
+# See: http://www.kernel.org/pub/software/scm/git/docs/gitignore.html
+#
+# This file is intentionally different from the output of `git svn show-ignore`,
+# as most of those are useless.
+#==============================================================================#
+
+#==============================================================================#
+# File extensions to be ignored anywhere in the tree.
+#==============================================================================#
+# Temp files created by most text editors.
+*~
+# Merge files created by git.
+*.orig
+# Byte compiled python modules.
+*.pyc
+# vim swap files
+.*.swp
+.sw?
+
+#==============================================================================#
+# Explicit files to ignore (only matches one).
+#==============================================================================#
+.gitusers
+autom4te.cache
+cscope.files
+cscope.out
+autoconf/aclocal.m4
+autoconf/autom4te.cache
+compile_commands.json
+
+#==============================================================================#
+# Directories to ignore (do not add trailing '/'s, they skip symlinks).
+#==============================================================================#
+# External projects that are tracked independently.
+projects/*
+!projects/sample
+!projects/CMakeLists.txt
+!projects/Makefile
+# Clang, which is tracked independently.
+tools/clang
+# LLDB, which is tracked independently.
+tools/lldb
+# lld, which is tracked independently.
+tools/lld
+# Sphinx build tree, if building in-source dir.
+docs/_build