Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/llvm/utils/vim/README

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+-*- llvm/utils/vim/README -*-
+
+This directory contains settings for the vim editor to work on llvm *.ll and
+tablegen *.td files. It comes with filetype detection rules in the (ftdetect),
+syntax highlighting (syntax), some minimal sensible default settings (ftplugin)
+and indentation plugins (indent).
+
+To install copy all subdirectories to your $HOME/.vim or if you prefer create
+symlinks to the files here. Do not copy the vimrc file here it is only meant as an inspiration and starting point for those working on llvm c++ code.
+
+Note: If you notice missing or incorrect syntax highlighting, please contact
+<llvm-bugs [at] lists.llvm.org>; if you wish to provide a patch to improve the
+functionality, it will be most appreciated. Thank you.
+
+If you find yourself working with LLVM Makefiles often, but you don't get syntax
+highlighting (because the files have names such as Makefile.rules or
+TEST.nightly.Makefile), add the following to your ~/.vimrc:
+
+  " LLVM Makefile highlighting mode
+  augroup filetype
+    au! BufRead,BufNewFile *Makefile*     set filetype=make
+  augroup END