Beispiel #1
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 def optimize_NEW_ARRAY(self, op):
     sizebox = self.get_constant_box(op.getarg(0))
     if sizebox is not None:
         # if the original 'op' did not have a ConstInt as argument,
         # build a new one with the ConstInt argument
         if not isinstance(op.getarg(0), ConstInt):
             op = ResOperation(rop.NEW_ARRAY, [sizebox], op.result, descr=op.getdescr())
         self.make_varray(op.getdescr(), sizebox.getint(), op.result, op)
     else:
         self.getvalue(op.result).ensure_nonnull()
         self.emit_operation(op)
Beispiel #2
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 def optimize_NEW_ARRAY(self, op):
     sizebox = self.get_constant_box(op.getarg(0))
     if sizebox is not None:
         # if the original 'op' did not have a ConstInt as argument,
         # build a new one with the ConstInt argument
         if not isinstance(op.getarg(0), ConstInt):
             op = ResOperation(rop.NEW_ARRAY, [sizebox], op.result,
                               descr=op.getdescr())
         self.make_varray(op.getdescr(), sizebox.getint(), op.result, op)
     else:
         self.getvalue(op.result).ensure_nonnull()
         self.emit_operation(op)
Beispiel #3
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 def has_pure_result(self, opnum, args, descr):
     op = ResOperation(opnum, args, None, descr)
     key = self.optimizer.make_args_key(op)
     op = self.pure_operations.get(key, None)
     if op is None:
         return False
     return op.getdescr() is descr
Beispiel #4
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 def has_pure_result(self, opnum, args, descr):
     op = ResOperation(opnum, args, None, descr)
     key = self.optimizer.make_args_key(op)
     op = self.optimizer.pure_operations.get(key, None)
     if op is None:
         return False
     return op.getdescr() is descr
Beispiel #5
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 def handle_malloc_operation(self, op):
     opnum = op.getopnum()
     if opnum == rop.NEW:
         self.handle_new_fixedsize(op.getdescr(), op)
     elif opnum == rop.NEW_WITH_VTABLE:
         classint = op.getarg(0).getint()
         descr = heaptracker.vtable2descr(self.cpu, classint)
         self.handle_new_fixedsize(descr, op)
         if self.gc_ll_descr.fielddescr_vtable is not None:
             op = ResOperation(rop.SETFIELD_GC,
                               [op.result, ConstInt(classint)], None,
                               descr=self.gc_ll_descr.fielddescr_vtable)
             self.newops.append(op)
     elif opnum == rop.NEW_ARRAY:
         descr = op.getdescr()
         assert isinstance(descr, ArrayDescr)
         self.handle_new_array(descr, op)
     elif opnum == rop.NEWSTR:
         self.handle_new_array(self.gc_ll_descr.str_descr, op)
     elif opnum == rop.NEWUNICODE:
         self.handle_new_array(self.gc_ll_descr.unicode_descr, op)
     else:
         raise NotImplementedError(op.getopname())
Beispiel #6
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 def handle_malloc_operation(self, op):
     opnum = op.getopnum()
     if opnum == rop.NEW:
         self.handle_new_fixedsize(op.getdescr(), op)
     elif opnum == rop.NEW_WITH_VTABLE:
         classint = op.getarg(0).getint()
         descr = heaptracker.vtable2descr(self.cpu, classint)
         self.handle_new_fixedsize(descr, op)
         if self.gc_ll_descr.fielddescr_vtable is not None:
             op = ResOperation(rop.SETFIELD_GC,
                               [op.result, ConstInt(classint)],
                               None,
                               descr=self.gc_ll_descr.fielddescr_vtable)
             self.newops.append(op)
     elif opnum == rop.NEW_ARRAY:
         descr = op.getdescr()
         assert isinstance(descr, ArrayDescr)
         self.handle_new_array(descr, op)
     elif opnum == rop.NEWSTR:
         self.handle_new_array(self.gc_ll_descr.str_descr, op)
     elif opnum == rop.NEWUNICODE:
         self.handle_new_array(self.gc_ll_descr.unicode_descr, op)
     else:
         raise NotImplementedError(op.getopname())