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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;; 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
105