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
141 OptParamAttrs ::= + _ | OptParamAttrs ParamAttr ;
150 | OptRetAttrs RetAttr
153 FuncAttr ::= noreturn
167 OptFuncAttrs ::= + _ | OptFuncAttrs FuncAttr ;
169 OptGC ::= + _ | gc STRINGCONSTANT ;
171 OptAlign ::= + _ | align EUINT64VAL ;
172 OptCAlign ::= + _ | ^ "," align EUINT64VAL ;
174 SectionString ::= section STRINGCONSTANT ;
176 OptSection ::= + _ | SectionString ;
178 GlobalVarAttributes ::= + _ | ^ "," GlobalVarAttribute GlobalVarAttributes ;
179 GlobalVarAttribute ::= SectionString | align EUINT64VAL ;
181 PrimType ::= INTTYPE | float | double | "ppc_fp128" | fp128 | "x86_fp80"
187 | Types OptAddrSpace ^ "*"
190 | Types "(" ^ ArgTypeListI ^ ")" OptFuncAttrs
191 | void "(" ^ ArgTypeListI ^ ")" OptFuncAttrs
192 | "[" ^ EUINT64VAL "x" Types ^ "]"
193 | "<" ^ EUINT64VAL "x" Types ^ ">"
196 | "<" ^ "{" TypeListI "}" ^ ">"
197 | "<" ^ "{" ^ "}" ^ ">"
200 ArgType ::= Types OptParamAttrs ;
202 ResultTypes ::= Types | void ;
204 ArgTypeList ::= ArgType | ArgTypeList ^ "," ArgType ;
206 ArgTypeListI ::= ArgTypeList | ArgTypeList ^ "," "..." | "..." | _ ;
208 TypeListI ::= Types | TypeListI ^ "," Types ;
210 ConstVal::= Types "[" ^ ConstVector ^ "]"
212 | Types "c" ^ STRINGCONSTANT
213 | Types "<" ^ ConstVector ^ ">"
214 | Types "{" ConstVector "}"
216 | Types "<" ^ "{" ConstVector "}" ^ ">"
217 | Types "<" ^ "{" ^ "}" ^ ">"
220 | Types SymbolicValueRef
222 | Types zeroinitializer
231 ConstExpr::= CastOps "(" ^ ConstVal to Types ^ ")"
232 | getelementptr "(" ^ ConstVal IndexList ^ ")"
233 | select "(" ^ ConstVal ^ "," ConstVal ^ "," ConstVal ^ ")"
234 | ArithmeticOps "(" ^ ConstVal ^ "," ConstVal ^ ")"
235 | LogicalOps "(" ^ ConstVal ^ "," ConstVal ^ ")"
236 | icmp IPredicates "(" ^ ConstVal ^ "," ConstVal ^ ")"
237 | fcmp FPredicates "(" ^ ConstVal ^ "," ConstVal ^ ")"
238 | vicmp IPredicates "(" ^ ConstVal ^ "," ConstVal ^ ")"
239 | vfcmp FPredicates "(" ^ ConstVal ^ "," ConstVal ^ ")"
240 | extractelement "(" ^ ConstVal ^ "," ConstVal ^ ")"
241 | insertelement "(" ^ ConstVal ^ "," ConstVal ^ "," ConstVal ^ ")"
242 | shufflevector "(" ^ ConstVal ^ "," ConstVal ^ "," ConstVal ^ ")"
243 | extractvalue "(" ^ ConstVal ^ ConstantIndexList ^ ")"
244 | insertvalue "(" ^ ConstVal ^ "," ConstVal ^ ConstantIndexList ^ ")" ;
246 ConstVector ::= ConstVector ^ "," ConstVal | ConstVal ;
248 GlobalType ::= global | constant ;
250 ThreadLocal ::= - "thread_local" | _ ;
252 AliaseeRef ::= ResultTypes SymbolicValueRef
253 | bitcast "(" ^ AliaseeRef to Types ^ ")" ;
255 Module ::= +++ DefinitionList | --- _ ;
257 DefinitionList ::= - Definition | + DefinitionList Definition ;
260 ::= ^ ( +++++ define Function
261 | declare FunctionProto
262 | - module asm AsmBlock
263 | OptLocalAssign type Types
264 | OptGlobalAssign GVVisibilityStyle ThreadLocal OptAddrSpace GlobalType
265 ConstVal GlobalVarAttributes
266 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal OptAddrSpace
267 GlobalType ConstVal GlobalVarAttributes
268 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal OptAddrSpace
269 GlobalType Types GlobalVarAttributes
270 | OptGlobalAssign GVVisibilityStyle alias AliasLinkage AliaseeRef
271 | target TargetDefinition
272 | deplibs "=" LibrariesDefinition
275 AsmBlock ::= STRINGCONSTANT ;
277 TargetDefinition ::= triple "=" STRINGCONSTANT
278 | datalayout "=" STRINGCONSTANT ;
280 LibrariesDefinition ::= "[" ( LibList | _ ) "]";
282 LibList ::= LibList ^ "," STRINGCONSTANT | STRINGCONSTANT ;
284 ArgListH ::= ArgListH ^ "," Types OptParamAttrs OptLocalName
285 | Types OptParamAttrs OptLocalName ;
287 ArgList ::= ArgListH | ArgListH ^ "," "..." | "..." | _ ;
289 FunctionHeaderH ::= OptCallingConv OptRetAttrs ResultTypes
290 GlobalName ^ "(" ^ ArgList ^ ")"
291 OptFuncAttrs OptSection OptAlign OptGC ;
293 BEGIN ::= ( begin | "{" ) ^ "\n";
296 FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN ;
298 END ::= ^ ( end | "}" ) ^ "\n";
300 Function ::= BasicBlockList END ;
302 FunctionProto ::= FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH ;
304 OptSideEffect ::= _ | sideeffect ;
306 ConstValueRef ::= ESINT64VAL
314 | "<" ConstVector ">"
315 | "[" ConstVector "]"
317 | "c" ^ STRINGCONSTANT
318 | "{" ConstVector "}"
320 | "<" ^ "{" ConstVector "}" ^ ">"
321 | "<" ^ "{" ^ "}" ^ ">"
323 | asm OptSideEffect STRINGCONSTANT ^ "," STRINGCONSTANT ;
325 SymbolicValueRef ::= LOCALVALID
330 ValueRef ::= SymbolicValueRef | ConstValueRef;
332 ResolvedVal ::= Types ValueRef ;
334 ReturnedVal ::= ResolvedVal | ReturnedVal ^ "," ResolvedVal ;
336 BasicBlockList ::= BasicBlockList BasicBlock | FunctionHeader BasicBlock ;
338 BasicBlock ::= InstructionList OptLocalAssign BBTerminatorInst ;
340 InstructionList ::= +++ InstructionList Inst
342 | ^ LABELSTR ^ ":\n" ;
344 BBTerminatorInst ::= ^ " " ^
348 | br INTTYPE ValueRef ^ "," label ValueRef ^ "," label ValueRef
349 | switch IntType ValueRef ^ "," label ValueRef "[" JumpTable "]"
350 | switch IntType ValueRef ^ "," label ValueRef "[" ^ "]"
351 | invoke OptCallingConv ResultTypes ValueRef ^ "(" ^ ParamList ^ ")"
353 to label ValueRef unwind label ValueRef
355 | unreachable ) ^ "\n";
357 JumpTable ::= JumpTable IntType ConstValueRef ^ "," label ValueRef
358 | IntType ConstValueRef ^ "," label ValueRef ;
360 Inst ::= ^ " " ^ OptLocalAssign InstVal ^ "\n";
362 PHIList ::= Types "[" ValueRef ^ "," ValueRef "]"
363 | PHIList ^ "," "[" ValueRef ^ "," ValueRef "]" ;
365 ParamList ::= Types OptParamAttrs ValueRef OptParamAttrs
366 | label OptParamAttrs ValueRef OptParamAttrs
367 | ParamList ^ "," Types OptParamAttrs ValueRef OptParamAttrs
368 | ParamList ^ "," label OptParamAttrs ValueRef OptParamAttrs
371 IndexList ::= _ | IndexList ^ "," ResolvedVal ;
373 ConstantIndexList ::= "," EUINT64VAL | ConstantIndexList ^ "," EUINT64VAL ;
375 OptTailCall ::= tail call | call ;
378 ArithmeticOps Types ValueRef ^ "," ValueRef
379 | LogicalOps Types ValueRef ^ "," ValueRef
380 | icmp IPredicates Types ValueRef ^ "," ValueRef
381 | fcmp FPredicates Types ValueRef ^ "," ValueRef
382 | vicmp IPredicates Types ValueRef ^ "," ValueRef
383 | vfcmp FPredicates Types ValueRef ^ "," ValueRef
384 | CastOps ResolvedVal to Types
385 | select ResolvedVal ^ "," ResolvedVal ^ "," ResolvedVal
386 | "va_arg" ResolvedVal ^ "," Types
387 | extractelement ResolvedVal ^ "," ResolvedVal
388 | insertelement ResolvedVal ^ "," ResolvedVal ^ "," ResolvedVal
389 | shufflevector ResolvedVal ^ "," ResolvedVal ^ "," ResolvedVal
391 | OptTailCall OptCallingConv ResultTypes ValueRef ^ "(" ^ ParamList ^ ")"
395 OptVolatile ::= - volatile | _ ;
397 MemoryInst ::= malloc Types OptCAlign
398 | malloc Types ^ "," INTTYPE ValueRef OptCAlign
399 | alloca Types OptCAlign
400 | alloca Types ^ "," INTTYPE ValueRef OptCAlign
402 | OptVolatile load Types ValueRef OptCAlign
403 | OptVolatile store ResolvedVal ^ "," Types ValueRef OptCAlign
404 | getresult Types ValueRef ^ "," EUINT64VAL
405 | getelementptr Types ValueRef IndexList
406 | extractvalue Types ValueRef ^ ConstantIndexList
407 | insertvalue Types ValueRef ^ "," Types ValueRef ^ ConstantIndexList ;