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      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
     86