" Vim syntax file
" Language:   llvm
" Maintainer: The LLVM team, http://llvm.org/
" Version:      $Revision$

if version < 600
  syntax clear
elseif exists("b:current_syntax")
  finish
endif

syn case match

" Types.
" Types also include struct, array, vector, etc. but these don't
" benefit as much from having dedicated highlighting rules.
syn keyword llvmType void half float double x86_fp80 fp128 ppc_fp128
syn keyword llvmType label metadata x86_mmx
syn keyword llvmType type label opaque token
syn match   llvmType /\<i\d\+\>/

" Instructions.
" The true and false tokens can be used for comparison opcodes, but it's
" much more common for these tokens to be used for boolean constants.
syn keyword llvmStatement add addrspacecast alloca and arcp ashr atomicrmw
syn keyword llvmStatement bitcast br call cmpxchg eq exact extractelement
syn keyword llvmStatement extractvalue fadd fast fcmp fdiv fence fmul fpext
syn keyword llvmStatement fptosi fptoui fptrunc free frem fsub getelementptr
syn keyword llvmStatement icmp inbounds indirectbr insertelement insertvalue
syn keyword llvmStatement inttoptr invoke landingpad load lshr malloc max min
syn keyword llvmStatement mul nand ne ninf nnan nsw nsz nuw oeq oge ogt ole
syn keyword llvmStatement olt one or ord phi ptrtoint resume ret sdiv select
syn keyword llvmStatement sext sge sgt shl shufflevector sitofp sle slt srem
syn keyword llvmStatement store sub switch trunc udiv ueq uge ugt uitofp ule ult
syn keyword llvmStatement umax umin une uno unreachable unwind urem va_arg
syn keyword llvmStatement xchg xor zext

" Keywords.
syn keyword llvmKeyword acq_rel acquire sanitize_address addrspace alias align
syn keyword llvmKeyword alignstack alwaysinline appending arm_aapcs_vfpcc
syn keyword llvmKeyword arm_aapcscc arm_apcscc asm atomic available_externally
syn keyword llvmKeyword blockaddress byval c catch cc ccc cleanup coldcc common
syn keyword llvmKeyword constant datalayout declare default define deplibs
syn keyword llvmKeyword distinct dllexport dllimport except extern_weak external
syn keyword llvmKeyword externally_initialized fastcc filter gc global hhvmcc
syn keyword llvmKeyword hhvm_ccc hidden initialexec inlinehint inreg
syn keyword llvmKeyword intel_ocl_bicc inteldialect internal linkonce
syn keyword llvmKeyword linkonce_odr localdynamic localexec minsize module
syn keyword llvmKeyword monotonic msp430_intrcc musttail naked nest
syn keyword llvmKeyword noalias nocapture noimplicitfloat noinline nonlazybind
syn keyword llvmKeyword noredzone noreturn nounwind optnone optsize personality
syn keyword llvmKeyword private protected ptx_device ptx_kernel readnone
syn keyword llvmKeyword readonly release returns_twice sanitize_thread
syn keyword llvmKeyword sanitize_memory section seq_cst sideeffect signext
syn keyword llvmKeyword singlethread spir_func spir_kernel sret ssp sspreq
syn keyword llvmKeyword sspstrong tail target thread_local to triple
syn keyword llvmKeyword unnamed_addr unordered uwtable volatile weak weak_odr
syn keyword llvmKeyword x86_fastcallcc x86_stdcallcc x86_thiscallcc
syn keyword llvmKeyword x86_64_sysvcc x86_64_win64cc zeroext uselistorder
syn keyword llvmKeyword uselistorder_bb musttail

" Obsolete keywords.
syn keyword llvmError  getresult begin end

" Misc syntax.
syn match   llvmNoName /[%@!]\d\+\>/
syn match   llvmNumber /-\?\<\d\+\>/
syn match   llvmFloat  /-\?\<\d\+\.\d*\(e[+-]\d\+\)\?\>/
syn match   llvmFloat  /\<0x\x\+\>/
syn keyword llvmBoolean true false
syn keyword llvmConstant zeroinitializer undef null
syn match   llvmComment /;.*$/
syn region  llvmString start=/"/ skip=/\\"/ end=/"/
syn match   llvmLabel /[-a-zA-Z$._][-a-zA-Z$._0-9]*:/
syn match   llvmIdentifier /[%@][-a-zA-Z$._][-a-zA-Z$._0-9]*/

" Named metadata and specialized metadata keywords.
syn match   llvmIdentifier /![-a-zA-Z$._][-a-zA-Z$._0-9]*\ze\s*$/
syn match   llvmIdentifier /![-a-zA-Z$._][-a-zA-Z$._0-9]*\ze\s*[=!]/
syn match   llvmType /!\zs\a\+\ze\s*(/
syn match   llvmConstant /\<DW_TAG_[a-z_]\+\>/
syn match   llvmConstant /\<DW_ATE_[a-zA-Z_]\+\>/
syn match   llvmConstant /\<DW_OP_[a-zA-Z0-9_]\+\>/
syn match   llvmConstant /\<DW_LANG_[a-zA-Z0-9_]\+\>/
syn match   llvmConstant /\<DW_VIRTUALITY_[a-z_]\+\>/
syn match   llvmConstant /\<DIFlag[A-Za-z]\+\>/

" Syntax-highlight lit test commands and bug numbers.
syn match  llvmSpecialComment /;\s*PR\d*\s*$/
syn match  llvmSpecialComment /;\s*REQUIRES:.*$/
syn match  llvmSpecialComment /;\s*RUN:.*$/
syn match  llvmSpecialComment /;\s*XFAIL:.*$/

if version >= 508 || !exists("did_c_syn_inits")
  if version < 508
    let did_c_syn_inits = 1
    command -nargs=+ HiLink hi link <args>
  else
    command -nargs=+ HiLink hi def link <args>
  endif

  HiLink llvmType Type
  HiLink llvmStatement Statement
  HiLink llvmNumber Number
  HiLink llvmComment Comment
  HiLink llvmString String
  HiLink llvmLabel Label
  HiLink llvmKeyword Keyword
  HiLink llvmBoolean Boolean
  HiLink llvmFloat Float
  HiLink llvmNoName Identifier
  HiLink llvmConstant Constant
  HiLink llvmSpecialComment SpecialComment
  HiLink llvmError Error
  HiLink llvmIdentifier Identifier

  delcommand HiLink
endif

let b:current_syntax = "llvm"