llvm-mirror/utils/emacs/llvm-mode.el
Rafael Espindola 841c10c599 Fix some regular expressions in llvm-mode.el.
In some cases it was using "\" unnecessarily.  In another case it
needed an additional "\" to properly indicate a numbered sub-match.

Make comment-start buffer-local in llvm-mode.el

llvm-mode was setting comment-start globally.  However, it is better
to only set it locally in the current buffer.

Don't use purecopy in llvm-mode.el

There's no reason to use purecopy in llvm-mode.el.
purecopy is only needed for files that are dumped in emacs.

Add a version header to llvm-mode.el

Adding a version header to llvm-mode.el allows it to be installed by
the Emacs package manager.  There are not many requirements on the
version number; however it is useful to users to bump it when
something significant changes.  Here I've chosen just to start at 1.0.

Patch by Tom Tromey!

llvm-svn: 323705
2018-01-29 22:56:41 +00:00

87 lines
3.6 KiB
EmacsLisp

;;; llvm-mode.el --- Major mode for the LLVM assembler language.
;; Maintainer: The LLVM team, http://llvm.org/
;; Version: 1.0
;;; Commentary:
;; Major mode for editing LLVM IR files.
;;; Code:
(defvar llvm-mode-syntax-table
(let ((table (make-syntax-table)))
(modify-syntax-entry ?% "_" table)
(modify-syntax-entry ?. "_" table)
(modify-syntax-entry ?\; "< " table)
(modify-syntax-entry ?\n "> " table)
table)
"Syntax table used while in LLVM mode.")
(defvar llvm-font-lock-keywords
(list
;; Variables
'("%[-a-zA-Z$._][-a-zA-Z$._0-9]*" . font-lock-variable-name-face)
;; Labels
'("[-a-zA-Z$._0-9]+:" . font-lock-variable-name-face)
;; Unnamed variable slots
'("%[-]?[0-9]+" . font-lock-variable-name-face)
;; Types
`(,(regexp-opt '("void" "i1" "i8" "i16" "i32" "i64" "i128" "float" "double" "type" "label" "opaque") 'symbols) . font-lock-type-face)
;; Integer literals
'("\\b[-]?[0-9]+\\b" . font-lock-preprocessor-face)
;; Floating point constants
'("\\b[-+]?[0-9]+.[0-9]*\\([eE][-+]?[0-9]+\\)?\\b" . font-lock-preprocessor-face)
;; Hex constants
'("\\b0x[0-9A-Fa-f]+\\b" . font-lock-preprocessor-face)
;; Keywords
`(,(regexp-opt '("begin" "end" "true" "false" "zeroinitializer" "declare"
"define" "global" "constant" "const" "internal" "linkonce" "linkonce_odr"
"weak" "weak_odr" "appending" "uninitialized" "implementation" "..."
"null" "undef" "to" "except" "not" "target" "endian" "little" "big"
"pointersize" "volatile" "fastcc" "coldcc" "cc" "personality") 'symbols) . font-lock-keyword-face)
;; Arithmetic and Logical Operators
`(,(regexp-opt '("add" "sub" "mul" "sdiv" "udiv" "urem" "srem" "and" "or" "xor"
"setne" "seteq" "setlt" "setgt" "setle" "setge") 'symbols) . font-lock-keyword-face)
;; Floating-point operators
`(,(regexp-opt '("fadd" "fsub" "fmul" "fdiv" "frem") 'symbols) . font-lock-keyword-face)
;; Special instructions
`(,(regexp-opt '("phi" "tail" "call" "select" "to" "shl" "lshr" "ashr" "fcmp" "icmp" "va_arg" "landingpad") 'symbols) . font-lock-keyword-face)
;; Control instructions
`(,(regexp-opt '("ret" "br" "switch" "invoke" "resume" "unwind" "unreachable" "indirectbr") 'symbols) . font-lock-keyword-face)
;; Memory operators
`(,(regexp-opt '("malloc" "alloca" "free" "load" "store" "getelementptr" "fence" "cmpxchg" "atomicrmw") 'symbols) . font-lock-keyword-face)
;; Casts
`(,(regexp-opt '("bitcast" "inttoptr" "ptrtoint" "trunc" "zext" "sext" "fptrunc" "fpext" "fptoui" "fptosi" "uitofp" "sitofp" "addrspacecast") 'symbols) . font-lock-keyword-face)
;; Vector ops
`(,(regexp-opt '("extractelement" "insertelement" "shufflevector") 'symbols) . font-lock-keyword-face)
;; Aggregate ops
`(,(regexp-opt '("extractvalue" "insertvalue") 'symbols) . font-lock-keyword-face)
;; Metadata types
`(,(regexp-opt '("distinct") 'symbols) . font-lock-keyword-face)
;; Use-list order directives
`(,(regexp-opt '("uselistorder" "uselistorder_bb") 'symbols) . font-lock-keyword-face))
"Syntax highlighting for LLVM.")
;; Emacs 23 compatibility.
(defalias 'llvm-mode-prog-mode
(if (fboundp 'prog-mode)
'prog-mode
'fundamental-mode))
;;;###autoload
(define-derived-mode llvm-mode llvm-mode-prog-mode "LLVM"
"Major mode for editing LLVM source files.
\\{llvm-mode-map}
Runs `llvm-mode-hook' on startup."
(setq font-lock-defaults `(llvm-font-lock-keywords))
(setq-local comment-start ";"))
;; Associate .ll files with llvm-mode
;;;###autoload
(add-to-list 'auto-mode-alist (cons "\\.ll\\'" 'llvm-mode))
(provide 'llvm-mode)
;;; llvm-mode.el ends here