3 polygen grammar for LLVM assembly language.
5 This file defines an LLVM assembly language grammar for polygen,
6 which is a tool for generating random text based on a grammar.
7 It is strictly syntax-based, and makes no attempt to generate
8 IR that is semantically valid. Most of the IR produced doesn't
13 I ::= "title: LLVM assembly language\n"
14 ^ "status: experimental\n"
15 ^ "audience: LLVM developers\n"
21 Define rules for non-keyword tokens. This is currently just a bunch
22 of hacks. They don't cover many valid forms of tokens, and they also
23 generate some invalid forms of tokens. The LLVM parser has custom
24 C++ code to lex these; custom C++ code for emitting them would be
25 convenient, but polygen doesn't support that.
27 NonZeroDecimalDigit ::= 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 ;
28 DecimalDigit ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 ;
29 DecimalDigitSeq ::= DecimalDigit [^ DecimalDigitSeq ];
30 HexDigit ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
31 | a | b | c | d | e | f ;
32 HexDigitSeq ::= HexDigit [^ HexDigitSeq ];
33 StringChar ::= a | b | c | d | e | f | g | h | i | j | k | l | m
34 | n | o | p | q | r | s | t | u | v | w | x | y | z ;
35 StringConstantSeq ::= StringChar [^ StringConstantSeq ];
36 StringConstant ::= StringChar [^ StringConstantSeq ];
37 EUINT64VAL ::= NonZeroDecimalDigit [^ DecimalDigitSeq ];
38 ESINT64VAL ::= [ "-" ] ^ EUINT64VAL ;
39 EUAPINTVAL ::= EUINT64VAL ;
40 ESAPINTVAL ::= ESINT64VAL ;
41 LOCALVALID ::= "%" ^ DecimalDigitSeq ;
42 GLOBALVALID ::= "@" ^ DecimalDigitSeq ;
43 INTTYPE ::= "i" ^ EUINT64VAL ;
44 GLOBALVAR ::= "@" ^ StringConstant ;
45 LOCALVAR ::= "%" ^ StringConstant ;
46 STRINGCONSTANT ::= "\"" ^ StringConstant ^ "\"" ;
47 ATSTRINGCONSTANT ::= "@" ^ STRINGCONSTANT ;
48 PCTSTRINGCONSTANT ::= "%" ^ STRINGCONSTANT ;
49 LABELSTR ::= StringConstant ;
50 FPVAL ::= ESAPINTVAL ^ "." ^ EUAPINTVAL | "0x" ^ HexDigitSeq ;
53 The rest of this file is derived directly from llvmAsmParser.y.
56 ArithmeticOps ::= add | sub | mul | udiv | sdiv | fdiv | urem | srem | frem ;
57 LogicalOps ::= shl | lshr | ashr | and | or | xor;
58 CastOps ::= trunc | zext | sext | fptrunc | fpext | bitcast |
59 uitofp | sitofp | fptoui | fptosi | inttoptr | ptrtoint ;
61 IPredicates ::= eq | ne | slt | sgt | sle | sge | ult | ugt | ule | uge ;
63 FPredicates ::= oeq | one | olt | ogt | ole | oge | ord | uno | ueq | une
64 | ult | ugt | ule | uge | true | false ;
67 FPType ::= float | double | "ppc_fp128" | fp128 | "x86_fp80";
69 LocalName ::= LOCALVAR | STRINGCONSTANT | PCTSTRINGCONSTANT ;
70 OptLocalName ::= LocalName | _ ;
72 OptAddrSpace ::= - addrspace "(" ^ EUINT64VAL ^ ")" | _ ;
74 OptLocalAssign ::= LocalName "=" | _ ;
76 GlobalName ::= GLOBALVAR | ATSTRINGCONSTANT ;
78 OptGlobalAssign ::= GlobalAssign | _ ;
80 GlobalAssign ::= GlobalName "=" ;
104 FunctionDeclareLinkage
110 FunctionDefineLinkage
118 AliasLinkage ::= + _ | weak | internal ;
120 OptCallingConv ::= + _ |
128 ParamAttr ::= zeroext
140 OptParamAttrs ::= + _ | OptParamAttrs ParamAttr ;
142 FuncAttr ::= noreturn
150 OptFuncAttrs ::= + _ | OptFuncAttrs FuncAttr ;
152 OptGC ::= + _ | gc STRINGCONSTANT ;
154 OptAlign ::= + _ | align EUINT64VAL ;
155 OptCAlign ::= + _ | ^ "," align EUINT64VAL ;
157 SectionString ::= section STRINGCONSTANT ;
159 OptSection ::= + _ | SectionString ;
161 GlobalVarAttributes ::= + _ | ^ "," GlobalVarAttribute GlobalVarAttributes ;
162 GlobalVarAttribute ::= SectionString | align EUINT64VAL ;
164 PrimType ::= INTTYPE | float | double | "ppc_fp128" | fp128 | "x86_fp80"
170 | Types OptAddrSpace ^ "*"
173 | Types "(" ^ ArgTypeListI ^ ")" OptFuncAttrs
174 | void "(" ^ ArgTypeListI ^ ")" OptFuncAttrs
175 | "[" ^ EUINT64VAL "x" Types ^ "]"
176 | "<" ^ EUINT64VAL "x" Types ^ ">"
179 | "<" ^ "{" TypeListI "}" ^ ">"
180 | "<" ^ "{" "}" ^ ">"
183 ArgType ::= Types OptParamAttrs ;
185 ResultTypes ::= Types | void ;
187 ArgTypeList ::= ArgType | ArgTypeList ^ "," ArgType ;
189 ArgTypeListI ::= ArgTypeList | ArgTypeList ^ "," "..." | "..." | _ ;
191 TypeListI ::= Types | TypeListI ^ "," Types ;
193 ConstVal::= Types "[" ^ ConstVector ^ "]"
195 | Types "c" ^ STRINGCONSTANT
196 | Types "<" ^ ConstVector ^ ">"
197 | Types "{" ConstVector "}"
199 | Types "<" ^ "{" ConstVector "}" ^ ">"
200 | Types "<" ^ "{" "}" ^ ">"
203 | Types SymbolicValueRef
205 | Types zeroinitializer
214 ConstExpr::= CastOps "(" ^ ConstVal to Types ^ ")"
215 | getelementptr "(" ^ ConstVal IndexList ^ ")"
216 | select "(" ^ ConstVal ^ "," ConstVal ^ "," ConstVal ^ ")"
217 | ArithmeticOps "(" ^ ConstVal ^ "," ConstVal ^ ")"
218 | LogicalOps "(" ^ ConstVal ^ "," ConstVal ^ ")"
219 | icmp IPredicates "(" ^ ConstVal ^ "," ConstVal ^ ")"
220 | fcmp FPredicates "(" ^ ConstVal ^ "," ConstVal ^ ")"
221 | vicmp IPredicates "(" ^ ConstVal ^ "," ConstVal ^ ")"
222 | vfcmp FPredicates "(" ^ ConstVal ^ "," ConstVal ^ ")"
223 | extractelement "(" ^ ConstVal ^ "," ConstVal ^ ")"
224 | insertelement "(" ^ ConstVal ^ "," ConstVal ^ "," ConstVal ^ ")"
225 | shufflevector "(" ^ ConstVal ^ "," ConstVal ^ "," ConstVal ^ ")"
226 | extractvalue "(" ^ ConstVal ^ ConstantIndexList ^ ")"
227 | insertvalue "(" ^ ConstVal ^ "," ConstVal ^ ConstantIndexList ^ ")" ;
229 ConstVector ::= ConstVector ^ "," ConstVal | ConstVal ;
231 GlobalType ::= global | constant ;
233 ThreadLocal ::= - "thread_local" | _ ;
235 AliaseeRef ::= ResultTypes SymbolicValueRef
236 | bitcast "(" ^ AliaseeRef to Types ^ ")" ;
238 Module ::= +++ DefinitionList | --- _ ;
240 DefinitionList ::= - Definition | + DefinitionList Definition ;
243 ::= ^ ( +++++ define Function
244 | declare FunctionProto
245 | - module asm AsmBlock
246 | OptLocalAssign type Types
247 | OptLocalAssign type void
248 | OptGlobalAssign GVVisibilityStyle ThreadLocal GlobalType ConstVal
249 OptAddrSpace GlobalVarAttributes
250 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal GlobalType
251 ConstVal OptAddrSpace GlobalVarAttributes
252 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal GlobalType
253 Types OptAddrSpace GlobalVarAttributes
254 | OptGlobalAssign GVVisibilityStyle alias AliasLinkage AliaseeRef
255 | target TargetDefinition
256 | deplibs "=" LibrariesDefinition
259 AsmBlock ::= STRINGCONSTANT ;
261 TargetDefinition ::= triple "=" STRINGCONSTANT
262 | datalayout "=" STRINGCONSTANT ;
264 LibrariesDefinition ::= "[" LibList "]";
266 LibList ::= LibList ^ "," STRINGCONSTANT | STRINGCONSTANT | _ ;
268 ArgListH ::= ArgListH ^ "," Types OptParamAttrs OptLocalName
269 | Types OptParamAttrs OptLocalName ;
271 ArgList ::= ArgListH | ArgListH ^ "," "..." | "..." | _ ;
273 FunctionHeaderH ::= OptCallingConv ResultTypes GlobalName "(" ^ ArgList ^ ")"
274 OptFuncAttrs OptSection OptAlign OptGC ;
276 BEGIN ::= ( begin | "{" ) ^ "\n";
279 FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN ;
281 END ::= ^ ( end | "}" ) ^ "\n";
283 Function ::= BasicBlockList END ;
285 FunctionProto ::= FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH ;
287 OptSideEffect ::= _ | sideeffect ;
289 ConstValueRef ::= ESINT64VAL
297 | "<" ConstVector ">"
298 | "[" ConstVector "]"
300 | "c" ^ STRINGCONSTANT
301 | "{" ConstVector "}"
303 | "<" ^ "{" ConstVector "}" ^ ">"
304 | "<" ^ "{" "}" ^ ">"
306 | asm OptSideEffect STRINGCONSTANT ^ "," STRINGCONSTANT ;
308 SymbolicValueRef ::= LOCALVALID
313 ValueRef ::= SymbolicValueRef | ConstValueRef;
315 ResolvedVal ::= Types ValueRef ;
317 ReturnedVal ::= ResolvedVal | ReturnedVal ^ "," ResolvedVal ;
319 BasicBlockList ::= BasicBlockList BasicBlock | FunctionHeader BasicBlock ;
321 BasicBlock ::= InstructionList OptLocalAssign BBTerminatorInst ;
323 InstructionList ::= +++ InstructionList Inst
325 | ^ LABELSTR ^ ":\n" ;
327 BBTerminatorInst ::= ^ " " ^
331 | br INTTYPE ValueRef ^ "," label ValueRef ^ "," label ValueRef
332 | switch IntType ValueRef ^ "," label ValueRef "[" JumpTable "]"
333 | switch IntType ValueRef ^ "," label ValueRef "[" "]"
334 | invoke OptCallingConv ResultTypes ValueRef "(" ^ ParamList ^ ")" OptFuncAttrs
335 to label ValueRef unwind label ValueRef
337 | unreachable ) ^ "\n";
339 JumpTable ::= JumpTable IntType ConstValueRef ^ "," label ValueRef
340 | IntType ConstValueRef ^ "," label ValueRef ;
342 Inst ::= ^ " " ^ OptLocalAssign InstVal ^ "\n";
344 PHIList ::= Types "[" ValueRef ^ "," ValueRef "]"
345 | PHIList ^ "," "[" ValueRef ^ "," ValueRef "]" ;
347 ParamList ::= Types OptParamAttrs ValueRef OptParamAttrs
348 | label OptParamAttrs ValueRef OptParamAttrs
349 | ParamList ^ "," Types OptParamAttrs ValueRef OptParamAttrs
350 | ParamList ^ "," label OptParamAttrs ValueRef OptParamAttrs
353 IndexList ::= _ | IndexList ^ "," ResolvedVal ;
355 ConstantIndexList ::= "," EUINT64VAL | ConstantIndexList ^ "," EUINT64VAL ;
357 OptTailCall ::= tail call | call ;
360 ArithmeticOps Types ValueRef ^ "," ValueRef
361 | LogicalOps Types ValueRef ^ "," ValueRef
362 | icmp IPredicates Types ValueRef ^ "," ValueRef
363 | fcmp FPredicates Types ValueRef ^ "," ValueRef
364 | vicmp IPredicates Types ValueRef ^ "," ValueRef
365 | vfcmp FPredicates Types ValueRef ^ "," ValueRef
366 | CastOps ResolvedVal to Types
367 | select ResolvedVal ^ "," ResolvedVal ^ "," ResolvedVal
368 | "va_arg" ResolvedVal ^ "," Types
369 | extractelement ResolvedVal ^ "," ResolvedVal
370 | insertelement ResolvedVal ^ "," ResolvedVal ^ "," ResolvedVal
371 | shufflevector ResolvedVal ^ "," ResolvedVal ^ "," ResolvedVal
373 | OptTailCall OptCallingConv ResultTypes ValueRef "(" ^ ParamList ^ ")"
377 OptVolatile ::= - volatile | _ ;
379 MemoryInst ::= malloc Types OptCAlign
380 | malloc Types ^ "," INTTYPE ValueRef OptCAlign
381 | alloca Types OptCAlign
382 | alloca Types ^ "," INTTYPE ValueRef OptCAlign
384 | OptVolatile load Types ValueRef OptCAlign
385 | OptVolatile store ResolvedVal ^ "," Types ValueRef OptCAlign
386 | getresult Types ValueRef ^ "," EUINT64VAL
387 | getelementptr Types ValueRef IndexList
388 | extractvalue Types ValueRef ^ ConstantIndexList
389 | insertvalue Types ValueRef ^ "," Types ValueRef ^ ConstantIndexList ;