Add LLVM IR syntax

ftdetect/llvm.vim

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+" Set .ll files to LLVM IR filetype
+au BufNewFile,BufReadPost *.ll set filetype=llvm

syntax/llvm.vim

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+" Vim syntax file
+" Language:   llvm
+" Maintainer: The LLVM team, http://llvm.org/
+" Version:      $Revision: 137806 $
+
+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 float double
+syn keyword llvmType x86_fp80 fp128 ppc_fp128
+syn keyword llvmType type label opaque
+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 fadd sub fsub mul fmul
+syn keyword llvmStatement sdiv udiv fdiv srem urem frem
+syn keyword llvmStatement and or xor
+syn keyword llvmStatement icmp fcmp
+syn keyword llvmStatement eq ne ugt uge ult ule sgt sge slt sle
+syn keyword llvmStatement oeq ogt oge olt ole one ord ueq ugt uge
+syn keyword llvmStatement ult ule une uno
+syn keyword llvmStatement nuw nsw exact inbounds
+syn keyword llvmStatement phi call select shl lshr ashr va_arg
+syn keyword llvmStatement trunc zext sext
+syn keyword llvmStatement fptrunc fpext fptoui fptosi uitofp sitofp
+syn keyword llvmStatement ptrtoint inttoptr bitcast
+syn keyword llvmStatement ret br indirectbr switch invoke unwind unreachable
+syn keyword llvmStatement malloc alloca free load store getelementptr
+syn keyword llvmStatement extractelement insertelement shufflevector
+syn keyword llvmStatement extractvalue insertvalue
+
+" Keywords.
+syn keyword llvmKeyword define declare global constant
+syn keyword llvmKeyword internal external private
+syn keyword llvmKeyword linkonce linkonce_odr weak weak_odr appending
+syn keyword llvmKeyword common extern_weak
+syn keyword llvmKeyword thread_local dllimport dllexport
+syn keyword llvmKeyword hidden protected default
+syn keyword llvmKeyword except deplibs
+syn keyword llvmKeyword volatile fastcc coldcc cc ccc
+syn keyword llvmKeyword x86_stdcallcc x86_fastcallcc
+syn keyword llvmKeyword ptx_kernel ptx_device
+syn keyword llvmKeyword signext zeroext inreg sret nounwind noreturn
+syn keyword llvmKeyword nocapture byval nest readnone readonly noalias uwtable
+syn keyword llvmKeyword inlinehint noinline alwaysinline optsize ssp sspreq
+syn keyword llvmKeyword noredzone noimplicitfloat naked alignstack
+syn keyword llvmKeyword module asm align tail to
+syn keyword llvmKeyword addrspace section alias sideeffect c gc
+syn keyword llvmKeyword target datalayout triple
+syn keyword llvmKeyword blockaddress
+
+" 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 /;.*$/ contains=@Spell
+syn region  llvmString start=/"/ skip=/\\"/ end=/"/
+syn match   llvmLabel /[-a-zA-Z$._][-a-zA-Z$._0-9]*:/
+syn match   llvmIdentifier /[%@][-a-zA-Z$._][-a-zA-Z$._0-9]*/
+
+" Syntax-highlight dejagnu test commands.
+syn match  llvmSpecialComment /;\s*RUN:.*$/
+syn match  llvmSpecialComment /;\s*PR\d*\s*$/
+syn match  llvmSpecialComment /;\s*END\.\s*$/
+syn match  llvmSpecialComment /;\s*XFAIL:.*$/
+syn match  llvmSpecialComment /;\s*XTARGET:.*$/
+
+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"