utils/emacs/llvm-mode.el

   1 ;;; llvm-mode.el --- Major mode for the LLVM assembler language.
   2
   3 ;; Maintainer:  The LLVM team, http://llvm.org/
   4
   5 ;;; Commentary:
   6
   7 ;; Major mode for editing LLVM IR files.
   8
   9 ;;; Code:
  10
  11 (defvar llvm-mode-syntax-table
  12   (let ((table (make-syntax-table)))
  13     (modify-syntax-entry ?% "_" table)
  14     (modify-syntax-entry ?. "_" table)
  15     (modify-syntax-entry ?\; "< " table)
  16     (modify-syntax-entry ?\n "> " table)
  17     table)
  18   "Syntax table used while in LLVM mode.")
  19
  20 (defvar llvm-font-lock-keywords
  21   (list
  22    ;; Variables
  23    '("%[-a-zA-Z$\._][-a-zA-Z$\._0-9]*" . font-lock-variable-name-face)
  24    ;; Labels
  25    '("[-a-zA-Z$\._0-9]+:" . font-lock-variable-name-face)
  26    ;; Unnamed variable slots
  27    '("%[-]?[0-9]+" . font-lock-variable-name-face)
  28    ;; Types
  29    `(,(regexp-opt '("void" "i1" "i8" "i16" "i32" "i64" "i128" "float" "double" "type" "label" "opaque") 'symbols) . font-lock-type-face)
  30    ;; Integer literals
  31    '("\\b[-]?[0-9]+\\b" . font-lock-preprocessor-face)
  32    ;; Floating point constants
  33    '("\\b[-+]?[0-9]+\.[0-9]*\([eE][-+]?[0-9]+\)?\\b" . font-lock-preprocessor-face)
  34    ;; Hex constants
  35    '("\\b0x[0-9A-Fa-f]+\\b" . font-lock-preprocessor-face)
  36    ;; Keywords
  37    `(,(regexp-opt '("begin" "end" "true" "false" "zeroinitializer" "declare"
  38                     "define" "global" "constant" "const" "internal" "linkonce" "linkonce_odr"
  39                     "weak" "weak_odr" "appending" "uninitialized" "implementation" "..."
  40                     "null" "undef" "to" "except" "not" "target" "endian" "little" "big"
  41                     "pointersize" "volatile" "fastcc" "coldcc" "cc" "personality") 'symbols) . font-lock-keyword-face)
  42    ;; Arithmetic and Logical Operators
  43    `(,(regexp-opt '("add" "sub" "mul" "sdiv" "udiv" "urem" "srem" "and" "or" "xor"
  44                     "setne" "seteq" "setlt" "setgt" "setle" "setge") 'symbols) . font-lock-keyword-face)
  45    ;; Floating-point operators
  46    `(,(regexp-opt '("fadd" "fsub" "fmul" "fdiv" "frem") 'symbols) . font-lock-keyword-face)
  47    ;; Special instructions
  48    `(,(regexp-opt '("phi" "tail" "call" "select" "to" "shl" "lshr" "ashr" "fcmp" "icmp" "va_arg" "landingpad") 'symbols) . font-lock-keyword-face)
  49    ;; Control instructions
  50    `(,(regexp-opt '("ret" "br" "switch" "invoke" "resume" "unwind" "unreachable" "indirectbr") 'symbols) . font-lock-keyword-face)
  51    ;; Memory operators
  52    `(,(regexp-opt '("malloc" "alloca" "free" "load" "store" "getelementptr" "fence" "cmpxchg" "atomicrmw") 'symbols) . font-lock-keyword-face)
  53    ;; Casts
  54    `(,(regexp-opt '("bitcast" "inttoptr" "ptrtoint" "trunc" "zext" "sext" "fptrunc" "fpext" "fptoui" "fptosi" "uitofp" "sitofp" "addrspacecast") 'symbols) . font-lock-keyword-face)
  55    ;; Vector ops
  56    `(,(regexp-opt '("extractelement" "insertelement" "shufflevector") 'symbols) . font-lock-keyword-face)
  57    ;; Aggregate ops
  58    `(,(regexp-opt '("extractvalue" "insertvalue") 'symbols) . font-lock-keyword-face)
  59    ;; Metadata types
  60    `(,(regexp-opt '("distinct") 'symbols) . font-lock-keyword-face)
  61    ;; Use-list order directives
  62    `(,(regexp-opt '("uselistorder" "uselistorder_bb") 'symbols) . font-lock-keyword-face))
  63   "Syntax highlighting for LLVM.")
  64
  65 ;; Emacs 23 compatibility.
  66 (defalias 'llvm-mode-prog-mode
  67   (if (fboundp 'prog-mode)
  68       'prog-mode
  69     'fundamental-mode))
  70
  71 ;;;###autoload
  72 (define-derived-mode llvm-mode llvm-mode-prog-mode "LLVM"
  73   "Major mode for editing LLVM source files.
  74 \\{llvm-mode-map}
  75   Runs `llvm-mode-hook' on startup."
  76   (setq font-lock-defaults `(llvm-font-lock-keywords))
  77   (setq comment-start ";"))
  78
  79 ;; Associate .ll files with llvm-mode
  80 ;;;###autoload
  81 (add-to-list 'auto-mode-alist (cons (purecopy "\\.ll\\'")  'llvm-mode))
  82
  83 (provide 'llvm-mode)
  84
  85 ;;; llvm-mode.el ends here