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 ;; Version: 1.0
   5
   6 ;;; Commentary:
   7
   8 ;; Major mode for editing LLVM IR files.
   9
  10 ;;; Code:
  11
  12 (defvar llvm-mode-syntax-table
  13   (let ((table (make-syntax-table)))
  14     (modify-syntax-entry ?% "_" table)
  15     (modify-syntax-entry ?. "_" table)
  16     (modify-syntax-entry ?\; "< " table)
  17     (modify-syntax-entry ?\n "> " table)
  18     table)
  19   "Syntax table used while in LLVM mode.")
  20
  21 (defvar llvm-font-lock-keywords
  22   (list
  23    ;; Attributes
  24    `(,(regexp-opt
  25        '("alwaysinline" "argmemonly" "builtin" "cold" "convergent" "inaccessiblememonly"
  26          "inaccessiblemem_or_argmemonly" "inlinehint" "jumptable" "minsize" "naked" "nobuiltin"
  27          "noduplicate" "noimplicitfloat" "noinline" "nonlazybind" "noredzone" "noreturn"
  28          "norecurse" "nounwind" "optnone" "optsize" "readnone" "readonly" "returns_twice"
  29          "speculatable" "ssp" "sspreq" "sspstrong" "safestack" "sanitize_address" "sanitize_hwaddress"
  30          "sanitize_thread" "sanitize_memory" "strictfp" "uwtable" "writeonly") 'symbols) . font-lock-constant-face)
  31    ;; Variables
  32    '("%[-a-zA-Z$._][-a-zA-Z$._0-9]*" . font-lock-variable-name-face)
  33    ;; Labels
  34    '("[-a-zA-Z$._0-9]+:" . font-lock-variable-name-face)
  35    ;; Unnamed variable slots
  36    '("%[-]?[0-9]+" . font-lock-variable-name-face)
  37    ;; Types
  38    `(,(regexp-opt '("void" "i1" "i8" "i16" "i32" "i64" "i128" "float" "double" "type" "label" "opaque") 'symbols) . font-lock-type-face)
  39    ;; Integer literals
  40    '("\\b[-]?[0-9]+\\b" . font-lock-preprocessor-face)
  41    ;; Floating point constants
  42    '("\\b[-+]?[0-9]+.[0-9]*\\([eE][-+]?[0-9]+\\)?\\b" . font-lock-preprocessor-face)
  43    ;; Hex constants
  44    '("\\b0x[0-9A-Fa-f]+\\b" . font-lock-preprocessor-face)
  45    ;; Keywords
  46    `(,(regexp-opt
  47        '(;; Toplevel entities
  48          "declare" "define" "module" "target" "source_filename" "global" "constant" "const"
  49          "attributes" "uselistorder" "uselistorder_bb"
  50          ;; Linkage types
  51          "private" "internal" "weak" "weak_odr" "linkonce" "linkonce_odr" "available_externally" "appending" "common" "extern_weak" "external"
  52          "uninitialized" "implementation" "..."
  53          ;; Values
  54          "true" "false" "null" "undef" "zeroinitializer" "none" "c" "asm" "blockaddress"
  55
  56          ;; Calling conventions
  57          "ccc" "fastcc" "coldcc" "webkit_jscc" "anyregcc" "preserve_mostcc" "preserve_allcc"
  58          "cxx_fast_tlscc" "swiftcc"
  59
  60          "atomic" "volatile" "personality" "prologue" "section") 'symbols) . font-lock-keyword-face)
  61    ;; Arithmetic and Logical Operators
  62    `(,(regexp-opt '("add" "sub" "mul" "sdiv" "udiv" "urem" "srem" "and" "or" "xor"
  63                     "setne" "seteq" "setlt" "setgt" "setle" "setge") 'symbols) . font-lock-keyword-face)
  64    ;; Floating-point operators
  65    `(,(regexp-opt '("fadd" "fsub" "fmul" "fdiv" "frem") 'symbols) . font-lock-keyword-face)
  66    ;; Special instructions
  67    `(,(regexp-opt '("phi" "tail" "call" "select" "to" "shl" "lshr" "ashr" "fcmp" "icmp" "va_arg" "landingpad") 'symbols) . font-lock-keyword-face)
  68    ;; Control instructions
  69    `(,(regexp-opt '("ret" "br" "switch" "invoke" "resume" "unwind" "unreachable" "indirectbr") 'symbols) . font-lock-keyword-face)
  70    ;; Memory operators
  71    `(,(regexp-opt '("malloc" "alloca" "free" "load" "store" "getelementptr" "fence" "cmpxchg" "atomicrmw") 'symbols) . font-lock-keyword-face)
  72    ;; Casts
  73    `(,(regexp-opt '("bitcast" "inttoptr" "ptrtoint" "trunc" "zext" "sext" "fptrunc" "fpext" "fptoui" "fptosi" "uitofp" "sitofp" "addrspacecast") 'symbols) . font-lock-keyword-face)
  74    ;; Vector ops
  75    `(,(regexp-opt '("extractelement" "insertelement" "shufflevector") 'symbols) . font-lock-keyword-face)
  76    ;; Aggregate ops
  77    `(,(regexp-opt '("extractvalue" "insertvalue") 'symbols) . font-lock-keyword-face)
  78    ;; Metadata types
  79    `(,(regexp-opt '("distinct") 'symbols) . font-lock-keyword-face)
  80    ;; Use-list order directives
  81    `(,(regexp-opt '("uselistorder" "uselistorder_bb") 'symbols) . font-lock-keyword-face))
  82   "Syntax highlighting for LLVM.")
  83
  84 ;; Emacs 23 compatibility.
  85 (defalias 'llvm-mode-prog-mode
  86   (if (fboundp 'prog-mode)
  87       'prog-mode
  88     'fundamental-mode))
  89
  90 ;;;###autoload
  91 (define-derived-mode llvm-mode llvm-mode-prog-mode "LLVM"
  92   "Major mode for editing LLVM source files.
  93 \\{llvm-mode-map}
  94   Runs `llvm-mode-hook' on startup."
  95   (setq font-lock-defaults `(llvm-font-lock-keywords))
  96   (setq-local comment-start ";"))
  97
  98 ;; Associate .ll files with llvm-mode
  99 ;;;###autoload
 100 (add-to-list 'auto-mode-alist (cons "\\.ll\\'" 'llvm-mode))
 101
 102 (provide 'llvm-mode)
 103
 104 ;;; llvm-mode.el ends here