if exists('b:current_syntax')
  finish
endif

let s:save_cpo = &cpoptions
set cpoptions&vim

syn keyword	ivyirUnspecifiedStatement	record data define
syn keyword	ivyirInstruction
			\ alloca load store call br cmp
			\ c.z c.nz c.eq c.ne c.lt c.le c.gt c.ge
			\ br br.t br.f
			\ add sub div mul push pop msg
syn match	ivyirRegister			"%[0-9]\>"
syn match	ivyirRegister			"%[1-9][0-9]\+\>"
syn match	ivyirRegister			"%\w\+\>"
syn match	ivyirIdentifier			/@\(\w\+\)\(\.\(\w\+\)\)*\>/
syn match	ivyirIdentifier			/@\.\(\w\+\)\(\.\(\w\+\)\)*\>/
syn match	ivyirLabel			/\(\w\+\)\(\.\(\w\+\)\)*\:/
syn keyword	ivyirType			id ptr str label
syn match	ivyirType			"i[0-9]\>"
syn match	ivyirType			"i[1-9][0-9]\+\>"
syn keyword	ivyirBlockType			iblock class lambda function

syn match	ivyirFieldIndex			/#[0-9]\+:\>/
syn match	ivyirFieldIndex			/#-[0-9]\+:\>/
syn match	ivyirFieldIndex			/#0x[:xdigit:]\+:\>/
syn match	ivyirFieldIndex			/#-0x[:xdigit:]\+:\>/

syn region	ivyirString			start=+"+ end=+"\%(u8\)\=+ end=+$+ extend

syn match	ivyirInteger			/#[0-9]\+\>/
syn match	ivyirInteger			/#-[0-9]\+\>/
syn match	ivyirInteger			/#0x[:xdigit:]\+\>/
syn match	ivyirInteger			/#-0x[:xdigit:]\+\>/

syn keyword	ivyirTodo			contained TODO FIXME XXX NOTE HACK TBD
syn region	ivyirBlockComment		start="/\*"  end="\*/" contains=ivyirTodo,ivyirBlockComment
syn match	ivyirLineComment		";.*$" contains=ivyirTodo,ivyirBlockComment
syn cluster	ivyirComment			contains=ivyirLineComment,ivyirBlockComment

syn match	ivyirBrackets			"[[\]]" display
syn match	ivyirParens			"[()]" display
syn match	ivyPropertySymbol		"\$" display

" The default highlighting.
hi def link	ivyirUnspecifiedStatement	Statement
hi def link	ivyPropertySymbol		Statement

hi def link	ivyirInteger			Number

hi def link	ivyirParens			Delimiter
hi def link	ivyirBraces			Structure

hi def link 	ivyirPropertyName		@property
hi def link 	ivyirFieldName			@variable.parameter
hi def link 	ivyirClassName			Type
hi def link 	ivyirLambdaName		@variable.parameter

hi def link 	ivyirInstruction		Function
hi def link 	ivyirIdentifier			Identifier
hi def link 	ivyirLabel			Tag
hi def link 	ivyirIndexBase			@variable.builtin
hi def link 	ivyirRegister			Constant

hi def link 	ivyirString			String
hi def link 	ivyirType			Type
hi def link 	ivyirBlockType			@attribute

hi def link	ivyirComment			Comment
hi def link	ivyirLineComment		ivyirComment
hi def link	ivyirBlockComment		ivyirComment
hi def link	ivyirLineContinuation		ivyirComment

hi def link	ivyirIdent			@variable.builtin
hi def link	ivyirAtom			Constant

let b:current_syntax = 'ivy-ir'

let &cpoptions = s:save_cpo
unlet s:save_cpo