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1 ;;; llvm-mode.el --- Major mode for the LLVM assembler language.
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2
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3 ;; Maintainer: The LLVM team, http://llvm.org/
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4
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5 ;;; Commentary:
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6
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7 ;; Major mode for editing LLVM IR files.
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8
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9 ;;; Code:
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10
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11 (defvar llvm-mode-syntax-table nil
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12 "Syntax table used while in LLVM mode.")
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13 (defvar llvm-font-lock-keywords
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14 (list
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15 ;; Comments
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16 '(";.*" . font-lock-comment-face)
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17 ;; Variables
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18 '("%[-a-zA-Z$\._][-a-zA-Z$\._0-9]*" . font-lock-variable-name-face)
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19 ;; Labels
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20 '("[-a-zA-Z$\._0-9]+:" . font-lock-variable-name-face)
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21 ;; Strings
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22 '("\"[^\"]+\"" . font-lock-string-face)
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23 ;; Unnamed variable slots
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24 '("%[-]?[0-9]+" . font-lock-variable-name-face)
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25 ;; Types
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26 `(,(regexp-opt '("void" "i1" "i8" "i16" "i32" "i64" "i128" "float" "double" "type" "label" "opaque") 'symbol) . font-lock-type-face)
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27 ;; Integer literals
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28 '("\\b[-]?[0-9]+\\b" . font-lock-preprocessor-face)
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29 ;; Floating point constants
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30 '("\\b[-+]?[0-9]+\.[0-9]*\([eE][-+]?[0-9]+\)?\\b" . font-lock-preprocessor-face)
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31 ;; Hex constants
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32 '("\\b0x[0-9A-Fa-f]+\\b" . font-lock-preprocessor-face)
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33 ;; Keywords
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34 `(,(regexp-opt '("begin" "end" "true" "false" "zeroinitializer" "declare"
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35 "define" "global" "constant" "const" "internal" "linkonce" "linkonce_odr"
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36 "weak" "weak_odr" "appending" "uninitialized" "implementation" "..."
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37 "null" "undef" "to" "except" "not" "target" "endian" "little" "big"
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38 "pointersize" "volatile" "fastcc" "coldcc" "cc" "personality") 'symbols) . font-lock-keyword-face)
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39 ;; Arithmetic and Logical Operators
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40 `(,(regexp-opt '("add" "sub" "mul" "sdiv" "udiv" "urem" "srem" "and" "or" "xor"
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41 "setne" "seteq" "setlt" "setgt" "setle" "setge") 'symbols) . font-lock-keyword-face)
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42 ;; Floating-point operators
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43 `(,(regexp-opt '("fadd" "fsub" "fmul" "fdiv" "frem") 'symbols) . font-lock-keyword-face)
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44 ;; Special instructions
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45 `(,(regexp-opt '("phi" "tail" "call" "select" "to" "shl" "lshr" "ashr" "fcmp" "icmp" "va_arg" "landingpad") 'symbols) . font-lock-keyword-face)
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46 ;; Control instructions
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47 `(,(regexp-opt '("ret" "br" "switch" "invoke" "resume" "unwind" "unreachable" "indirectbr") 'symbols) . font-lock-keyword-face)
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48 ;; Memory operators
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49 `(,(regexp-opt '("malloc" "alloca" "free" "load" "store" "getelementptr" "fence" "cmpxchg" "atomicrmw") 'symbols) . font-lock-keyword-face)
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50 ;; Casts
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51 `(,(regexp-opt '("bitcast" "inttoptr" "ptrtoint" "trunc" "zext" "sext" "fptrunc" "fpext" "fptoui" "fptosi" "uitofp" "sitofp" "addrspacecast") 'symbols) . font-lock-keyword-face)
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52 ;; Vector ops
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53 `(,(regexp-opt '("extractelement" "insertelement" "shufflevector") 'symbols) . font-lock-keyword-face)
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54 ;; Aggregate ops
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55 `(,(regexp-opt '("extractvalue" "insertvalue") 'symbols) . font-lock-keyword-face)
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56 ;; Metadata types
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57 `(,(regexp-opt '("distinct") 'symbols) . font-lock-keyword-face)
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58 ;; Use-list order directives
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59 `(,(regexp-opt '("uselistorder" "uselistorder_bb") 'symbols) . font-lock-keyword-face)
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60
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61 )
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62 "Syntax highlighting for LLVM."
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63 )
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64
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65 ;; ---------------------- Syntax table ---------------------------
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66 ;; Shamelessly ripped from jasmin.el
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67 ;; URL: http://www.neilvandyke.org/jasmin-emacs/jasmin.el.html
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68
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69 (if (not llvm-mode-syntax-table)
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70 (progn
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71 (setq llvm-mode-syntax-table (make-syntax-table))
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72 (mapc (function (lambda (n)
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73 (modify-syntax-entry (aref n 0)
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74 (aref n 1)
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75 llvm-mode-syntax-table)))
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76 '(
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77 ;; whitespace (` ')
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78 [?\^m " "]
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79 [?\f " "]
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80 [?\n " "]
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81 [?\t " "]
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82 [?\ " "]
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83 ;; word constituents (`w')
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84 ;;[?< "w"]
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85 ;;[?> "w"]
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86 [?% "w"]
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87 ;;[?_ "w "]
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88 ;; comments
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89 [?\; "< "]
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90 [?\n "> "]
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91 ;;[?\r "> "]
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92 ;;[?\^m "> "]
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93 ;; symbol constituents (`_')
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94 ;; punctuation (`.')
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95 ;; open paren (`(')
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96 ;; close paren (`)')
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97 ;; string quote ('"')
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98 [?\" "\""]))))
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99
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100 ;; --------------------- Abbrev table -----------------------------
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101
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102 (defvar llvm-mode-abbrev-table nil
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103 "Abbrev table used while in LLVM mode.")
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104 (define-abbrev-table 'llvm-mode-abbrev-table ())
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105
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106 (defvar llvm-mode-hook nil)
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107 (defvar llvm-mode-map nil) ; Create a mode-specific keymap.
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108
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109 (if (not llvm-mode-map)
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110 () ; Do not change the keymap if it is already set up.
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111 (setq llvm-mode-map (make-sparse-keymap))
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112 (define-key llvm-mode-map "\t" 'tab-to-tab-stop)
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113 (define-key llvm-mode-map "\es" 'center-line)
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114 (define-key llvm-mode-map "\eS" 'center-paragraph))
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115
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116 ;;;###autoload
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117 (defun llvm-mode ()
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118 "Major mode for editing LLVM source files.
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119 \\{llvm-mode-map}
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120 Runs `llvm-mode-hook' on startup."
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121 (interactive)
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122 (kill-all-local-variables)
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123 (use-local-map llvm-mode-map) ; Provides the local keymap.
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124 (setq major-mode 'llvm-mode)
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125
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126 (make-local-variable 'font-lock-defaults)
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127 (setq major-mode 'llvm-mode ; This is how describe-mode
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128 ; finds the doc string to print.
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129 mode-name "LLVM" ; This name goes into the modeline.
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130 font-lock-defaults `(llvm-font-lock-keywords))
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131
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132 (setq local-abbrev-table llvm-mode-abbrev-table)
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133 (set-syntax-table llvm-mode-syntax-table)
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134 (setq comment-start ";")
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135 (run-hooks 'llvm-mode-hook)) ; Finally, this permits the user to
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136 ; customize the mode with a hook.
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137
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138 ;; Associate .ll files with llvm-mode
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139 ;;;###autoload
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140 (add-to-list 'auto-mode-alist (cons (purecopy "\\.ll\\'") 'llvm-mode))
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141
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142 (provide 'llvm-mode)
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143
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144 ;;; llvm-mode.el ends here
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