Jmaa/llvm--emulator
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Move llvm AST into own module.

Browse Source
This commit is contained in:
cfreksen 2017-10-29 13:52:19 +01:00
parent 34964c186b
commit abebb940f6
No known key found for this signature in database
GPG Key ID: EAC13EE101008978
2 changed files with 95 additions and 92 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
ll.py Normal file
View File

@ -0,0 +1,51 @@
"""Data structure for LLVM AST."""
from collections import namedtuple
from enum import Enum
class SimpleType(Enum):
"""Simple types in LLVM."""
Void = 1
I1 = 2
I8 = 3
I32 = 4
I64 = 5
Program = namedtuple('Program', ['tdecls', 'gdecls', 'fdecls'])
TypeDec = namedtuple('TypeDec', ['name', 'body'])
PointerType = namedtuple('PointerType', ['inner_ty'])
StructType = namedtuple('StructType', ['fields'])
ArrayType = namedtuple('ArrayType', ['length', 'inner_ty'])
FunctionType = namedtuple('FunctionType', ['return_ty', 'parameters'])
NamedType = namedtuple('NamedType', ['other_name'])
GlobalDec = namedtuple('GlobalDec', ['name', 'ty', 'body'])
GNull = namedtuple('GNull', [])
GGid = namedtuple('GGid', ['val'])
GInt = namedtuple('GInt', ['val'])
GString = namedtuple('GString', ['val'])
GArray = namedtuple('GArray', ['entries'])
GStruct = namedtuple('GStruct', ['fields'])
FunctionDec = namedtuple('FunctionDec', ['return_type', 'name', 'parameters', 'body'])
FunctionBody = namedtuple('FunctionBody', ['first_block', 'named_blocks'])
Block = namedtuple('Block', ['insns', 'terminator'])
Binop = namedtuple('Binop', ['bop', 'ty', 'left', 'right'])
Alloca = namedtuple('Alloca', ['ty'])
Load = namedtuple('Load', ['ty', 'oper'])
Store = namedtuple('Store', ['ty', 'value', 'location'])
Icmp = namedtuple('Icmp', ['cnd', 'ty', 'left', 'right'])
Call = namedtuple('Call', ['return_ty', 'callee', 'arguments'])
Bitcast = namedtuple('Bitcast', ['from_ty', 'oper', 'to_ty'])
Gep = namedtuple('Gep', ['base_ty', 'oper_ty', 'oper', 'steps'])
Zext = namedtuple('Zext', ['from_ty', 'oper', 'to_ty'])
Ptrtoint = namedtuple('Ptrtoint', ['pointer_ty', 'oper', 'to_ty'])
Ret = namedtuple('Ret', ['ty', 'oper'])
Br = namedtuple('Br', ['label'])
Cbr = namedtuple('Cbr', ['ty', 'oper', 'then_label', 'else_label'])

136
parser.py
View File

@ -1,57 +1,9 @@
"""Parser for LLVM--.""" """Parser for LLVM--."""
from collections import namedtuple
import ply.lex as lex import ply.lex as lex
import ply.yacc as yacc import ply.yacc as yacc
from enum import Enum import ll
class SimpleType(Enum):
Void = 1
I1 = 2
I8 = 3
I32 = 4
I64 = 5
# Namedtuples for storing AST
Program = namedtuple('Program', ['tdecls', 'gdecls', 'fdecls'])
TypeDec = namedtuple('TypeDec', ['name', 'body'])
PointerType = namedtuple('PointerType', ['inner_ty'])
StructType = namedtuple('StructType', ['fields'])
ArrayType = namedtuple('ArrayType', ['length', 'inner_ty'])
FunctionType = namedtuple('FunctionType', ['return_ty', 'parameters'])
NamedType = namedtuple('NamedType', ['other_name'])
GlobalDec = namedtuple('GlobalDec', ['name', 'ty', 'body'])
GNull = namedtuple('GNull', [])
GGid = namedtuple('GGid', ['val'])
GInt = namedtuple('GInt', ['val'])
GString = namedtuple('GString', ['val'])
GArray = namedtuple('GArray', ['entries'])
GStruct = namedtuple('GStruct', ['fields'])
FunctionDec = namedtuple('FunctionDec', ['return_type', 'name', 'parameters', 'body'])
FunctionBody = namedtuple('FunctionBody', ['first_block', 'named_blocks'])
Block = namedtuple('Block', ['insns', 'terminator'])
Binop = namedtuple('Binop', ['bop', 'ty', 'left', 'right'])
Alloca = namedtuple('Alloca', ['ty'])
Load = namedtuple('Load', ['ty', 'oper'])
Store = namedtuple('Store', ['ty', 'value', 'location'])
Icmp = namedtuple('Icmp', ['cnd', 'ty', 'left', 'right'])
Call = namedtuple('Call', ['return_ty', 'callee', 'arguments'])
Bitcast = namedtuple('Bitcast', ['from_ty', 'oper', 'to_ty'])
Gep = namedtuple('Gep', ['base_ty', 'oper_ty', 'oper', 'steps'])
Zext = namedtuple('Zext', ['from_ty', 'oper', 'to_ty'])
Ptrtoint = namedtuple('Ptrtoint', ['pointer_ty', 'oper', 'to_ty'])
Ret = namedtuple('Ret', ['ty', 'oper'])
Br = namedtuple('Br', ['label'])
Cbr = namedtuple('Cbr', ['ty', 'oper', 'then_label', 'else_label'])
class LLVMParser(object): class LLVMParser(object):
@ -208,17 +160,17 @@ class LLVMParser(object):
fdecs = {} fdecs = {}
for top_dec in smth: for top_dec in smth:
name = top_dec.name name = top_dec.name
if isinstance(top_dec, FunctionDec): if isinstance(top_dec, ll.FunctionDec):
if name in fdecs.keys(): if name in fdecs.keys():
print('ERROR: Function {} is declared more than once' print('ERROR: Function {} is declared more than once'
.format(name)) .format(name))
fdecs[name] = top_dec fdecs[name] = top_dec
elif isinstance(top_dec, TypeDec): elif isinstance(top_dec, ll.TypeDec):
if name in tdecs.keys(): if name in tdecs.keys():
print('ERROR: Type {} is declared more than once' print('ERROR: Type {} is declared more than once'
.format(name)) .format(name))
tdecs[name] = top_dec tdecs[name] = top_dec
elif isinstance(top_dec, GlobalDec): elif isinstance(top_dec, ll.GlobalDec):
if name in gdecs.keys(): if name in gdecs.keys():
print('ERROR: Global {} is declared more than once' print('ERROR: Global {} is declared more than once'
.format(name)) .format(name))
@ -231,7 +183,7 @@ class LLVMParser(object):
def p_program(self, p): def p_program(self, p):
'program : top_decs' 'program : top_decs'
tdecls, gdecls, fdecls = self.handle_top_decs(p[1]) tdecls, gdecls, fdecls = self.handle_top_decs(p[1])
p[0] = Program(tdecls, gdecls, fdecls) p[0] = ll.Program(tdecls, gdecls, fdecls)
def p_topdecs_some(self, p): def p_topdecs_some(self, p):
'''top_decs : tdec top_decs '''top_decs : tdec top_decs
@ -245,40 +197,40 @@ class LLVMParser(object):
def p_tdec(self, p): def p_tdec(self, p):
'tdec : PercentID ASSIGN TYPE ty' 'tdec : PercentID ASSIGN TYPE ty'
p[0] = TypeDec(p[1], p[4]) p[0] = ll.TypeDec(p[1], p[4])
def p_ty_void(self, p): def p_ty_void(self, p):
'ty : VOID' 'ty : VOID'
p[0] = SimpleType.Void p[0] = ll.SimpleType.Void
def p_ty_i1(self, p): def p_ty_i1(self, p):
'ty : I1' 'ty : I1'
p[0] = SimpleType.I1 p[0] = ll.SimpleType.I1
def p_ty_i8(self, p): def p_ty_i8(self, p):
'ty : I8' 'ty : I8'
p[0] = SimpleType.I8 p[0] = ll.SimpleType.I8
def p_ty_i32(self, p): def p_ty_i32(self, p):
'ty : I32' 'ty : I32'
p[0] = SimpleType.I32 p[0] = ll.SimpleType.I32
def p_ty_i64(self, p): def p_ty_i64(self, p):
'ty : I64' 'ty : I64'
p[0] = SimpleType.I64 p[0] = ll.SimpleType.I64
def p_ty_ptr(self, p): def p_ty_ptr(self, p):
'ty : ty ASTERIX' 'ty : ty ASTERIX'
p[0] = PointerType(p[1]) p[0] = ll.PointerType(p[1])
def p_ty_struct(self, p): def p_ty_struct(self, p):
'ty : LBRACE ty_list RBRACE' 'ty : LBRACE ty_list RBRACE'
p[0] = StructType(p[2]) p[0] = ll.StructType(p[2])
def p_ty_array(self, p): def p_ty_array(self, p):
'ty : LBRACK INT ID ty RBRACK' 'ty : LBRACK INT ID ty RBRACK'
if p[3] == 'x': if p[3] == 'x':
p[0] = ArrayType(p[2], p[4]) p[0] = ll.ArrayType(p[2], p[4])
else: else:
print('Invalid name in array definition: {}\n It should have been an x.' print('Invalid name in array definition: {}\n It should have been an x.'
.format(p[3])) .format(p[3]))
@ -286,11 +238,11 @@ class LLVMParser(object):
def p_ty_fun(self, p): def p_ty_fun(self, p):
'ty : ty LPAREN ty_list RPAREN' 'ty : ty LPAREN ty_list RPAREN'
p[0] = FunctionType(p[1], p[3]) p[0] = ll.FunctionType(p[1], p[3])
def p_ty_id(self, p): def p_ty_id(self, p):
'ty : PercentID' 'ty : PercentID'
p[0] = NamedType(p[1]) p[0] = ll.NamedType(p[1])
def p_ty_list_single(self, p): def p_ty_list_single(self, p):
'ty_list : ty' 'ty_list : ty'
@ -306,32 +258,32 @@ class LLVMParser(object):
def p_gdec(self, p): def p_gdec(self, p):
'gdec : AtID ASSIGN GLOBAL ty ginit' 'gdec : AtID ASSIGN GLOBAL ty ginit'
p[0] = GlobalDec(p[1], p[4], p[5]) p[0] = ll.GlobalDec(p[1], p[4], p[5])
def p_ginit_null(self, p): def p_ginit_null(self, p):
'ginit : NULL' 'ginit : NULL'
p[0] = GNull() p[0] = ll.GNull()
def p_ginit_id(self, p): def p_ginit_id(self, p):
'ginit : AtID' 'ginit : AtID'
p[0] = GGid(p[1]) p[0] = ll.GGid(p[1])
def p_ginit_int(self, p): def p_ginit_int(self, p):
'ginit : INT' 'ginit : INT'
p[0] = GInt(p[1]) p[0] = ll.GInt(p[1])
def p_ginit_string(self, p): def p_ginit_string(self, p):
'ginit : STRING' 'ginit : STRING'
p[0] = GString(p[1]) p[0] = ll.GString(p[1])
def p_ginit_array(self, p): def p_ginit_array(self, p):
'ginit : LBRACK ty_ginit_list RBRACK' 'ginit : LBRACK ty_ginit_list RBRACK'
# TODO This syntax seems weird # TODO This syntax seems weird
p[0] = GArray(p[2]) p[0] = ll.GArray(p[2])
def p_ginit_struct(self, p): def p_ginit_struct(self, p):
'ginit : LBRACE ty_ginit_list RBRACE' 'ginit : LBRACE ty_ginit_list RBRACE'
p[0] = GStruct(p[2]) p[0] = ll.GStruct(p[2])
def p_ty_ginit_list_single(self, p): def p_ty_ginit_list_single(self, p):
'ty_ginit_list : ty ginit' 'ty_ginit_list : ty ginit'
@ -347,7 +299,7 @@ class LLVMParser(object):
def p_fdec(self, p): def p_fdec(self, p):
'fdec : DEFINE ty AtID LPAREN ty_id_list RPAREN LBRACE fbody RBRACE' 'fdec : DEFINE ty AtID LPAREN ty_id_list RPAREN LBRACE fbody RBRACE'
p[0] = FunctionDec(p[2], p[3], p[5], p[8]) p[0] = ll.FunctionDec(p[2], p[3], p[5], p[8])
def p_ty_id_list_single(self, p): def p_ty_id_list_single(self, p):
'ty_id_list : ty PercentID' 'ty_id_list : ty PercentID'
@ -363,19 +315,19 @@ class LLVMParser(object):
def p_fbody_multiple_blocks(self, p): def p_fbody_multiple_blocks(self, p):
'fbody : block named_block_list' 'fbody : block named_block_list'
p[0] = FunctionBody(p[1], p[2]) p[0] = ll.FunctionBody(p[1], p[2])
def p_fbody_one_block(self, p): def p_fbody_one_block(self, p):
'fbody : block' 'fbody : block'
p[0] = FunctionBody(p[1], []) p[0] = ll.FunctionBody(p[1], [])
def p_block_insns_terminator(self, p): def p_block_insns_terminator(self, p):
'block : insns terminator' 'block : insns terminator'
p[0] = Block(p[1], p[2]) p[0] = ll.Block(p[1], p[2])
def p_block_terminator(self, p): def p_block_terminator(self, p):
'block : terminator' 'block : terminator'
p[0] = Block([], p[1]) p[0] = ll.Block([], p[1])
def p_insns_single(self, p): def p_insns_single(self, p):
'insns : optionally_named_insn' 'insns : optionally_named_insn'
@ -395,51 +347,51 @@ class LLVMParser(object):
def p_insn_bop(self, p): def p_insn_bop(self, p):
'insn : bop ty operand COMMA operand' 'insn : bop ty operand COMMA operand'
p[0] = Binop(p[1], p[2], p[3], p[5]) p[0] = ll.Binop(p[1], p[2], p[3], p[5])
def p_insn_alloca(self, p): def p_insn_alloca(self, p):
'insn : ALLOCA ty' 'insn : ALLOCA ty'
p[0] = Alloca(p[2]) p[0] = ll.Alloca(p[2])
def p_insn_load(self, p): def p_insn_load(self, p):
'insn : LOAD ty COMMA ty operand' 'insn : LOAD ty COMMA ty operand'
p[0] = Load(p[2], p[5]) p[0] = ll.Load(p[2], p[5])
def p_insn_store(self, p): def p_insn_store(self, p):
'insn : STORE ty operand COMMA ty operand' 'insn : STORE ty operand COMMA ty operand'
p[0] = Store(p[2], p[3], p[6]) p[0] = ll.Store(p[2], p[3], p[6])
def p_insn_icmp(self, p): def p_insn_icmp(self, p):
'insn : ICMP cnd ty operand COMMA operand' 'insn : ICMP cnd ty operand COMMA operand'
p[0] = Icmp(p[2], p[3], p[4], p[6]) p[0] = ll.Icmp(p[2], p[3], p[4], p[6])
def p_insn_call(self, p): def p_insn_call(self, p):
'insn : CALL ty operand LPAREN ty_operand_list RPAREN' 'insn : CALL ty operand LPAREN ty_operand_list RPAREN'
p[0] = Call(p[2], p[3], p[5]) p[0] = ll.Call(p[2], p[3], p[5])
def p_insn_call_empty(self, p): def p_insn_call_empty(self, p):
'insn : CALL ty operand LPAREN RPAREN' 'insn : CALL ty operand LPAREN RPAREN'
p[0] = Call(p[2], p[3], []) p[0] = ll.Call(p[2], p[3], [])
def p_insn_bitcast(self, p): def p_insn_bitcast(self, p):
'insn : BITCAST ty operand TO ty' 'insn : BITCAST ty operand TO ty'
p[0] = Bitcast(p[2], p[3], p[5]) p[0] = ll.Bitcast(p[2], p[3], p[5])
def p_insn_gep(self, p): def p_insn_gep(self, p):
'insn : GETELEMENTPTR ty COMMA ty operand COMMA ty_operand_list' 'insn : GETELEMENTPTR ty COMMA ty operand COMMA ty_operand_list'
p[0] = Gep(p[2], p[4], p[5], p[7]) p[0] = ll.Gep(p[2], p[4], p[5], p[7])
def p_insn_gep_empty(self, p): def p_insn_gep_empty(self, p):
'insn : GETELEMENTPTR ty COMMA ty operand' 'insn : GETELEMENTPTR ty COMMA ty operand'
p[0] = Gep(p[2], p[4], p[5], []) p[0] = ll.Gep(p[2], p[4], p[5], [])
def p_insn_zext(self, p): def p_insn_zext(self, p):
'insn : ZEXT ty operand TO ty' 'insn : ZEXT ty operand TO ty'
p[0] = Zext(p[2], p[3], p[4]) p[0] = ll.Zext(p[2], p[3], p[4])
def p_insn_ptrtoint(self, p): def p_insn_ptrtoint(self, p):
'insn : PTRTOINT ty ASTERIX operand TO ty' 'insn : PTRTOINT ty ASTERIX operand TO ty'
p[0] = Ptrtoint(p[2], p[4], p[6]) p[0] = ll.Ptrtoint(p[2], p[4], p[6])
def p_bop(self, p): def p_bop(self, p):
'''bop : ADD '''bop : ADD
@ -473,19 +425,19 @@ class LLVMParser(object):
def p_terminator_ret_void(self, p): def p_terminator_ret_void(self, p):
'terminator : RET VOID' 'terminator : RET VOID'
p[0] = Ret(SimpleType.Void, None) p[0] = ll.Ret(ll.SimpleType.Void, None)
def p_terminator_ret_oper(self, p): def p_terminator_ret_oper(self, p):
'terminator : RET ty operand' 'terminator : RET ty operand'
p[0] = Ret(p[2], p[3]) p[0] = ll.Ret(p[2], p[3])
def p_terminator_branch(self, p): def p_terminator_branch(self, p):
'terminator : BR LABEL PercentID' 'terminator : BR LABEL PercentID'
p[0] = Br(p[3]) p[0] = ll.Br(p[3])
def p_terminator_conditional_branch(self, p): def p_terminator_conditional_branch(self, p):
'terminator : BR ty operand COMMA LABEL PercentID COMMA LABEL PercentID' 'terminator : BR ty operand COMMA LABEL PercentID COMMA LABEL PercentID'
p[0] = Cbr(p[2], p[3], p[6], p[9]) p[0] = ll.Cbr(p[2], p[3], p[6], p[9])
def p_operand(self, p): def p_operand(self, p):
'''operand : NULL '''operand : NULL