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(defvar llvm-font-lock-keywords
9  (list
10   ;; Comments
11   '(";.*" . font-lock-comment-face)
12   ;; Variables
13   '("%[-a-zA-Z$\._][-a-zA-Z$\._0-9]*" . font-lock-variable-name-face)
14   ;; Labels
15   '("[-a-zA-Z$\._0-9]+:" . font-lock-variable-name-face)
16   ;; Strings
17   '("\"[^\"]+\"" . font-lock-string-face)
18   ;; Unnamed variable slots
19   '("%[-]?[0-9]+" . font-lock-variable-name-face)
20   ;; Types
21   `(,(regexp-opt '("void" "i[0-9]+" "float" "double" "type" "label" "opaque") 'words) . font-lock-type-face)
22   ;; Integer literals
23   '("\\b[-]?[0-9]+\\b" . font-lock-preprocessor-face)
24   ;; Floating point constants
25   '("\\b[-+]?[0-9]+\.[0-9]*\([eE][-+]?[0-9]+\)?\\b" . font-lock-preprocessor-face)
26   ;; Hex constants
27   '("\\b0x[0-9A-Fa-f]+\\b" . font-lock-preprocessor-face)
28   ;; Keywords
29   `(,(regexp-opt '("begin" "end" "true" "false" "zeroinitializer" "declare"
30                    "define" "global" "constant" "const" "internal" "linkonce" "linkonce_odr"
31                    "weak" "weak_odr" "appending" "uninitialized" "implementation" "..."
32                    "null" "undef" "to" "except" "not" "target" "endian" "little" "big"
33                    "pointersize" "volatile" "fastcc" "coldcc" "cc") 'words) . font-lock-keyword-face)
34   ;; Arithmetic and Logical Operators
35   `(,(regexp-opt '("add" "sub" "mul" "sdiv" "udiv" "urem" "srem" "and" "or" "xor"
36                    "setne" "seteq" "setlt" "setgt" "setle" "setge") 'words) . font-lock-keyword-face)
37   ;; Floating-point operators
38   `(,(regexp-opt '("fadd" "fsub" "fmul" "fdiv" "frem") 'words) . font-lock-keyword-face)
39   ;; Special instructions
40   `(,(regexp-opt '("phi" "tail" "call" "select" "to" "shl" "lshr" "ashr" "fcmp" "icmp" "va_arg" "landingpad") 'words) . font-lock-keyword-face)
41   ;; Control instructions
42   `(,(regexp-opt '("ret" "br" "switch" "invoke" "resume" "unwind" "unreachable" "indirectbr") 'words) . font-lock-keyword-face)
43   ;; Memory operators
44   `(,(regexp-opt '("malloc" "alloca" "free" "load" "store" "getelementptr" "fence" "cmpxchg" "atomicrmw") 'words) . font-lock-keyword-face)
45   ;; Casts
46   `(,(regexp-opt '("bitcast" "inttoptr" "ptrtoint" "trunc" "zext" "sext" "fptrunc" "fpext" "fptoui" "fptosi" "uitofp" "sitofp" "addrspacecast") 'words) . font-lock-keyword-face)
47   ;; Vector ops
48   `(,(regexp-opt '("extractelement" "insertelement" "shufflevector") 'words) . font-lock-keyword-face)
49   ;; Aggregate ops
50   `(,(regexp-opt '("extractvalue" "insertvalue") 'words) . font-lock-keyword-face)
51
52   )
53  "Syntax highlighting for LLVM"
54  )
55
56;; ---------------------- Syntax table ---------------------------
57;; Shamelessly ripped from jasmin.el
58;; URL: http://www.neilvandyke.org/jasmin-emacs/jasmin.el.html
59
60(if (not llvm-mode-syntax-table)
61    (progn
62      (setq llvm-mode-syntax-table (make-syntax-table))
63      (mapcar (function (lambda (n)
64                          (modify-syntax-entry (aref n 0)
65                                               (aref n 1)
66                                               llvm-mode-syntax-table)))
67              '(
68                ;; whitespace (` ')
69                [?\^m " "]
70                [?\f  " "]
71                [?\n  " "]
72                [?\t  " "]
73                [?\   " "]
74                ;; word constituents (`w')
75                ;;[?<  "w"]
76                ;;[?>  "w"]
77                [?\%  "w"]
78                ;;[?_  "w  "]
79                ;; comments
80                [?\;  "< "]
81                [?\n  "> "]
82                ;;[?\r  "> "]
83                ;;[?\^m "> "]
84                ;; symbol constituents (`_')
85                ;; punctuation (`.')
86                ;; open paren (`(')
87                [?\( "("]
88                [?\[ "("]
89                [?\{ "("]
90                ;; close paren (`)')
91                [?\) ")"]
92                [?\] ")"]
93                [?\} ")"]
94                ;; string quote ('"')
95                [?\" "\""]
96                ))))
97
98;; --------------------- Abbrev table -----------------------------
99
100(defvar llvm-mode-abbrev-table nil
101  "Abbrev table used while in LLVM mode.")
102(define-abbrev-table 'llvm-mode-abbrev-table ())
103
104(defvar llvm-mode-hook nil)
105(defvar llvm-mode-map nil)   ; Create a mode-specific keymap.
106
107(if (not llvm-mode-map)
108    ()  ; Do not change the keymap if it is already set up.
109  (setq llvm-mode-map (make-sparse-keymap))
110  (define-key llvm-mode-map "\t" 'tab-to-tab-stop)
111  (define-key llvm-mode-map "\es" 'center-line)
112  (define-key llvm-mode-map "\eS" 'center-paragraph))
113
114
115(defun llvm-mode ()
116  "Major mode for editing LLVM source files.
117  \\{llvm-mode-map}
118  Runs llvm-mode-hook on startup."
119  (interactive)
120  (kill-all-local-variables)
121  (use-local-map llvm-mode-map)         ; Provides the local keymap.
122  (setq major-mode 'llvm-mode)
123
124  (make-local-variable 'font-lock-defaults)
125  (setq major-mode 'llvm-mode           ; This is how describe-mode
126                                        ;   finds the doc string to print.
127  mode-name "LLVM"                      ; This name goes into the modeline.
128  font-lock-defaults `(llvm-font-lock-keywords))
129
130  (setq local-abbrev-table llvm-mode-abbrev-table)
131  (set-syntax-table llvm-mode-syntax-table)
132  (setq comment-start ";")
133  (run-hooks 'llvm-mode-hook))          ; Finally, this permits the user to
134                                        ;   customize the mode with a hook.
135
136;; Associate .ll files with llvm-mode
137(setq auto-mode-alist
138   (append '(("\\.ll$" . llvm-mode)) auto-mode-alist))
139
140(provide 'llvm-mode)
141;; end of llvm-mode.el
142