Ejemplo n.º 1
0
 def redirect_call_assembler(self, oldlooptoken, newlooptoken):
     # some minimal sanity checking
     old_nbargs = oldlooptoken.compiled_loop_token._debug_nbargs
     new_nbargs = newlooptoken.compiled_loop_token._debug_nbargs
     assert old_nbargs == new_nbargs
     oldadr = oldlooptoken._ll_function_addr
     target = newlooptoken._ll_function_addr
     # copy frame-info data
     baseofs = self.cpu.get_baseofs_of_frame_field()
     newlooptoken.compiled_loop_token.update_frame_info(
         oldlooptoken.compiled_loop_token, baseofs)
     # we overwrite the instructions at the old _ll_function_addr
     # to start with a JMP to the new _ll_function_addr.
     mc = InstrBuilder()
     mc.load_imm(r.SCRATCH, target)
     mc.BCR(c.ANY, r.SCRATCH)
     mc.copy_to_raw_memory(oldadr)
Ejemplo n.º 2
0
 def make_function_returning_stack_pointer(self):
     mc = InstrBuilder()
     mc.LGR(r.r2, r.SP)
     mc.BCR(c.ANY, r.r14)
     return rffi.cast(lltype.Signed, mc.get_assembler_function())