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      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