1;; Maintainer:  The LLVM team, http://llvm.org/
2;; Description: Major mode for the LLVM assembler language.
3;; Updated:     2007-09-19
4
5;; Create mode-specific tables.
6(defvar llvm-mode-syntax-table nil
7  "Syntax table used while in LLVM mode.")
8
9(defvar llvm-font-lock-keywords
10  (list
11   ;; Comments
12   '(";.*" . font-lock-comment-face)
13   ;; Variables
14   '("%[-a-zA-Z$\._][-a-zA-Z$\._0-9]*" . font-lock-variable-name-face)
15   ;; Labels
16   '("[-a-zA-Z$\._0-9]+:" . font-lock-variable-name-face)
17   ;; Strings
18   '("\"[^\"]+\"" . font-lock-string-face)
19   ;; Unnamed variable slots
20   '("%[-]?[0-9]+" . font-lock-variable-name-face)
21   ;; Types
22   `(,(regexp-opt '("void" "i[0-9]+" "float" "double" "type" "label" "opaque") 'words) . font-lock-type-face)
23   ;; Integer literals
24   '("\\b[-]?[0-9]+\\b" . font-lock-preprocessor-face)
25   ;; Floating point constants
26   '("\\b[-+]?[0-9]+\.[0-9]*\([eE][-+]?[0-9]+\)?\\b" . font-lock-preprocessor-face)
27   ;; Hex constants
28   '("\\b0x[0-9A-Fa-f]+\\b" . font-lock-preprocessor-face)
29   ;; Keywords
30   `(,(regexp-opt '("begin" "end" "true" "false" "zeroinitializer" "declare"
31                    "define" "global" "constant" "const" "internal" "linkonce" "linkonce_odr"
32                    "weak" "weak_odr" "appending" "uninitialized" "implementation" "..."
33                    "null" "undef" "to" "except" "not" "target" "endian" "little" "big"
34                    "pointersize" "deplibs" "volatile" "fastcc" "coldcc" "cc") 'words) . font-lock-keyword-face)
35   ;; Arithmetic and Logical Operators
36   `(,(regexp-opt '("add" "sub" "mul" "div" "rem" "and" "or" "xor"
37                    "setne" "seteq" "setlt" "setgt" "setle" "setge") 'words) . font-lock-keyword-face)
38   ;; Special instructions
39   `(,(regexp-opt '("phi" "tail" "call" "cast" "select" "to" "shl" "shr" "vaarg" "vanext") 'words) . font-lock-keyword-face)
40   ;; Control instructions
41   `(,(regexp-opt '("ret" "br" "switch" "invoke" "unwind" "unreachable") 'words) . font-lock-keyword-face)
42   ;; Memory operators
43   `(,(regexp-opt '("malloc" "alloca" "free" "load" "store" "getelementptr") 'words) . font-lock-keyword-face)
44   )
45  "Syntax highlighting for LLVM"
46  )
47
48;; ---------------------- Syntax table ---------------------------
49;; Shamelessly ripped from jasmin.el
50;; URL: http://www.neilvandyke.org/jasmin-emacs/jasmin.el.html
51
52(if (not llvm-mode-syntax-table)
53    (progn
54      (setq llvm-mode-syntax-table (make-syntax-table))
55      (mapcar (function (lambda (n)
56                          (modify-syntax-entry (aref n 0)
57                                               (aref n 1)
58                                               llvm-mode-syntax-table)))
59              '(
60                ;; whitespace (` ')
61                [?\^m " "]
62                [?\f  " "]
63                [?\n  " "]
64                [?\t  " "]
65                [?\   " "]
66                ;; word constituents (`w')
67                ;;[?<  "w"]
68                ;;[?>  "w"]
69                [?\%  "w"]
70                ;;[?_  "w  "]
71                ;; comments
72                [?\;  "< "]
73                [?\n  "> "]
74                ;;[?\r  "> "]
75                ;;[?\^m "> "]
76                ;; symbol constituents (`_')
77                ;; punctuation (`.')
78                ;; open paren (`(')
79                [?\( "("]
80                [?\[ "("]
81                [?\{ "("]
82                ;; close paren (`)')
83                [?\) ")"]
84                [?\] ")"]
85                [?\} ")"]
86                ;; string quote ('"')
87                [?\" "\""]
88                ))))
89
90;; --------------------- Abbrev table -----------------------------
91
92(defvar llvm-mode-abbrev-table nil
93  "Abbrev table used while in LLVM mode.")
94(define-abbrev-table 'llvm-mode-abbrev-table ())
95
96(defvar llvm-mode-hook nil)
97(defvar llvm-mode-map nil)   ; Create a mode-specific keymap.
98
99(if (not llvm-mode-map)
100    ()  ; Do not change the keymap if it is already set up.
101  (setq llvm-mode-map (make-sparse-keymap))
102  (define-key llvm-mode-map "\t" 'tab-to-tab-stop)
103  (define-key llvm-mode-map "\es" 'center-line)
104  (define-key llvm-mode-map "\eS" 'center-paragraph))
105
106
107(defun llvm-mode ()
108  "Major mode for editing LLVM source files.
109  \\{llvm-mode-map}
110  Runs llvm-mode-hook on startup."
111  (interactive)
112  (kill-all-local-variables)
113  (use-local-map llvm-mode-map)         ; Provides the local keymap.
114  (setq major-mode 'llvm-mode)
115
116  (make-local-variable 'font-lock-defaults)
117  (setq major-mode 'llvm-mode           ; This is how describe-mode
118                                        ;   finds the doc string to print.
119  mode-name "LLVM"                      ; This name goes into the modeline.
120  font-lock-defaults `(llvm-font-lock-keywords))
121
122  (setq local-abbrev-table llvm-mode-abbrev-table)
123  (set-syntax-table llvm-mode-syntax-table)
124  (setq comment-start ";")
125  (run-hooks 'llvm-mode-hook))          ; Finally, this permits the user to
126                                        ;   customize the mode with a hook.
127
128;; Associate .ll files with llvm-mode
129(setq auto-mode-alist
130   (append '(("\\.ll$" . llvm-mode)) auto-mode-alist))
131
132(provide 'llvm-mode)
133;; end of llvm-mode.el
134