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;;; llvm-mode.el --- Major mode for the LLVM assembler language.
;; Maintainer: The LLVM team, http://llvm.org/
;; Version: 1.0
;;; Commentary:
;; Major mode for editing LLVM IR files.
;;; Code:
(defvar llvm-mode-syntax-table
(let ((table (make-syntax-table)))
(modify-syntax-entry ?% "_" table)
(modify-syntax-entry ?. "_" table)
(modify-syntax-entry ?\; "< " table)
(modify-syntax-entry ?\n "> " table)
table)
"Syntax table used while in LLVM mode.")
(defvar llvm-font-lock-keywords
(list
;; Attributes
`(,(regexp-opt
'("alwaysinline" "argmemonly" "allocsize" "builtin" "cold" "convergent" "dereferenceable_or_null" "hot" "inaccessiblememonly"
"inaccessiblemem_or_argmemonly" "inalloca" "inlinehint" "jumptable" "minsize" "mustprogress" "naked" "nobuiltin"
"nocallback" "nocf_check" "noduplicate" "nofree" "noimplicitfloat" "noinline" "nomerge" "nonlazybind" "noprofile" "noredzone" "noreturn"
"norecurse" "nosync" "noundef" "nounwind" "null_pointer_is_valid" "optforfuzzing" "optnone" "optsize" "preallocated" "readnone" "readonly" "returns_twice"
"shadowcallstack" "speculatable" "speculative_load_hardening" "ssp" "sspreq" "sspstrong" "safestack" "sanitize_address" "sanitize_hwaddress" "sanitize_memtag"
"sanitize_thread" "sanitize_memory" "strictfp" "swifterror" "uwtable" "willreturn" "writeonly" "immarg") 'symbols) . font-lock-constant-face)
;; Variables
'("%[-a-zA-Z$._][-a-zA-Z$._0-9]*" . font-lock-variable-name-face)
;; Labels
'("[-a-zA-Z$._0-9]+:" . font-lock-variable-name-face)
;; Unnamed variable slots
'("%[-]?[0-9]+" . font-lock-variable-name-face)
;; Types
`(,(regexp-opt '("void" "i1" "i8" "i16" "i32" "i64" "i128" "float" "double" "type" "label" "opaque") 'symbols) . font-lock-type-face)
;; Integer literals
'("\\b[-]?[0-9]+\\b" . font-lock-preprocessor-face)
;; Floating point constants
'("\\b[-+]?[0-9]+.[0-9]*\\([eE][-+]?[0-9]+\\)?\\b" . font-lock-preprocessor-face)
;; Hex constants
'("\\b0x[0-9A-Fa-f]+\\b" . font-lock-preprocessor-face)
;; Keywords
`(,(regexp-opt
'(;; Toplevel entities
"declare" "define" "module" "target" "source_filename" "global" "constant" "const"
"attributes" "uselistorder" "uselistorder_bb"
;; Linkage types
"private" "internal" "weak" "weak_odr" "linkonce" "linkonce_odr" "available_externally" "appending" "common" "extern_weak" "external"
"uninitialized" "implementation" "..."
;; Values
"true" "false" "null" "undef" "zeroinitializer" "none" "c" "asm" "blockaddress"
;; Calling conventions
"ccc" "fastcc" "coldcc" "webkit_jscc" "anyregcc" "preserve_mostcc" "preserve_allcc"
"cxx_fast_tlscc" "swiftcc"
"atomic" "volatile" "personality" "prologue" "section") 'symbols) . font-lock-keyword-face)
;; Arithmetic and Logical Operators
`(,(regexp-opt '("add" "sub" "mul" "sdiv" "udiv" "urem" "srem" "and" "or" "xor"
"setne" "seteq" "setlt" "setgt" "setle" "setge") 'symbols) . font-lock-keyword-face)
;; Floating-point operators
`(,(regexp-opt '("fadd" "fsub" "fneg" "fmul" "fdiv" "frem") 'symbols) . font-lock-keyword-face)
;; Special instructions
`(,(regexp-opt '("phi" "tail" "call" "select" "to" "shl" "lshr" "ashr" "fcmp" "icmp" "va_arg" "landingpad" "freeze") 'symbols) . font-lock-keyword-face)
;; Control instructions
`(,(regexp-opt '("ret" "br" "switch" "invoke" "resume" "unwind" "unreachable" "indirectbr" "callbr") 'symbols) . font-lock-keyword-face)
;; Memory operators
`(,(regexp-opt '("malloc" "alloca" "free" "load" "store" "getelementptr" "fence" "cmpxchg" "atomicrmw") 'symbols) . font-lock-keyword-face)
;; Casts
`(,(regexp-opt '("bitcast" "inttoptr" "ptrtoint" "trunc" "zext" "sext" "fptrunc" "fpext" "fptoui" "fptosi" "uitofp" "sitofp" "addrspacecast") 'symbols) . font-lock-keyword-face)
;; Vector ops
`(,(regexp-opt '("extractelement" "insertelement" "shufflevector") 'symbols) . font-lock-keyword-face)
;; Aggregate ops
`(,(regexp-opt '("extractvalue" "insertvalue") 'symbols) . font-lock-keyword-face)
;; Metadata types
`(,(regexp-opt '("distinct") 'symbols) . font-lock-keyword-face)
;; Use-list order directives
`(,(regexp-opt '("uselistorder" "uselistorder_bb") 'symbols) . font-lock-keyword-face))
"Syntax highlighting for LLVM.")
;; Emacs 23 compatibility.
(defalias 'llvm-mode-prog-mode
(if (fboundp 'prog-mode)
'prog-mode
'fundamental-mode))
;;;###autoload
(define-derived-mode llvm-mode llvm-mode-prog-mode "LLVM"
"Major mode for editing LLVM source files.
\\{llvm-mode-map}
Runs `llvm-mode-hook' on startup."
(setq font-lock-defaults `(llvm-font-lock-keywords))
(setq-local comment-start ";"))
;; Associate .ll files with llvm-mode
;;;###autoload
(add-to-list 'auto-mode-alist (cons "\\.ll\\'" 'llvm-mode))
(provide 'llvm-mode)
;;; llvm-mode.el ends here
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