def geraLLVM(arvore):
percorreArvore(arvore)
arquivo = open('vars.ll', 'w')
arquivo.write(str(module))
arquivo.close()
print(module)
llvm.shutdown()
def main():
global root, func_table, var_table, module
arg = sys.argv[1]
if not arg.endswith('.tpp'):
raise IOError("Not a tpp file!")
data = open(arg, 'r')
source_file = data.read()
data.close()
tree = SemanticAnalyzer(source_file)
root = tree.root
func_table = tree.func_table
var_table = tree.var_table
llvm.initialize()
llvm.initialize_all_targets()
llvm.initialize_native_target()
llvm.initialize_native_asmprinter()
module = ir.Module('meu_modulo.bc')
module.triple = llvm.get_process_triple()
target = llvm.Target.from_triple(module.triple)
target_machine = target.create_target_machine()
module.data_layout = target_machine.target_data
generate_code()
tree.set_atribution_asto()
tree.export_tree()
arquivo = open('atribuicao.ll', 'w')
arquivo.write(str(module))
arquivo.close()
print(module)
llvm.shutdown()
mod = lc.Module()
mod.triple = llvm.get_default_triple()
func = lc.Function(mod,
lc.FunctionType(lc.VoidType(), [lc.IntType(32)]),
name='foo')
builder = lc.IRBuilder(func.append_basic_block())
builder.ret_void()
print(mod)
mod = llvm.parse_assembly(str(mod))
mod.verify()
print(repr(mod))
print(mod)
with llvm.create_module_pass_manager() as pm:
with llvm.create_pass_manager_builder() as pmb:
pmb.populate(pm)
pm.run(mod)
print(mod)
tm = llvm.Target.from_default_triple().create_target_machine()
ee = llvm.create_mcjit_compiler(mod, tm)
func = mod.get_function("foo")
print(func, ee.get_function_address("foo"))
ee.close()
llvm.shutdown()
mod = lc.Module()
mod.triple = llvm.get_default_triple()
func = lc.Function(mod, lc.FunctionType(lc.VoidType(), [lc.IntType(32)]),
name='foo')
builder = lc.IRBuilder(func.append_basic_block())
builder.ret_void()
print(mod)
mod = llvm.parse_assembly(str(mod))
mod.verify()
print(repr(mod))
print(mod)
with llvm.create_module_pass_manager() as pm:
with llvm.create_pass_manager_builder() as pmb:
pmb.populate(pm)
pm.run(mod)
print(mod)
tm = llvm.Target.from_default_triple().create_target_machine()
ee = llvm.create_mcjit_compiler(mod, tm)
func = mod.get_function("foo")
print(func, ee.get_function_address("foo"))
ee.close()
llvm.shutdown()
def __exit__(self, exc_type, exc_val, exc_tb):
llvm.shutdown()
def main():
# Initialize LLVM Core and others
binding.initialize()
binding.initialize_native_target()
binding.initialize_native_asmprinter()
#################################
# Argument parser
parser_args = argparse.ArgumentParser(
prog='sadbeep', description='Implementação simples de um compilador')
parser_args.add_argument('input', type=str, help='source code')
parser_args.add_argument('-l',
metavar='*.ll',
type=str,
help='llvm output')
parser_args.add_argument('-s',
metavar='*.s',
type=str,
help='native assembly output')
parser_args.add_argument('-o',
metavar='',
type=str,
default='a.out',
help='binary output, default a.out')
parser_args.add_argument('--clang',
action='store_const',
const=True,
help='use clang instead of gcc to assemble')
args = parser_args.parse_args()
#################################
input_stream = FileStream(args.input)
lexer = sadbeepLexer(input_stream)
stream = CommonTokenStream(lexer)
parser = sadbeepParser(stream)
tree = parser.parse() # Get AST
#if parser.getNumberOfSyntaxErrors() > 0:
# exit(-1)
# Transverse AST to generate llvm
vis = visitor(args.input)
try:
vis.visitParse(tree)
except AttributeError as msg:
print(
f"Erro no arquivo {input_stream.fileName}, não é possível executar operações ou declarar variáveis fora "
f"de funções!")
exit(-1)
#################################
constain_main = False
for i in range(len(vis.module.functions)):
if vis.module.functions[i].name == 'main':
constain_main = True
if not constain_main:
print(
f"O arquivo {input_stream.fileName} não contém a declaração de uma função main!"
)
exit(-1)
# Output llvm
if args.l:
with open(args.l, 'w') as lout:
lout.write(str(vis.module))
#################################
# Output native assembly
if args.s:
with open(args.s, 'w') as asm:
asm.write(vis.asm())
#################################
# Assemble and link
assemble(str(vis.module) if args.clang else vis.asm(),
args.o,
gcc=not args.clang)
#################################
binding.shutdown() # Shotdown LLVM core