def assemble_loop(self, inputargs, operations, looptoken):
"""adds the following attributes to looptoken:
_x86_loop_code (an integer giving an address)
_x86_bootstrap_code (an integer giving an address)
_x86_stack_depth
_x86_arglocs
"""
self.make_sure_mc_exists()
regalloc = RegAlloc(self, self.cpu.translate_support_code)
arglocs = regalloc.prepare_loop(inputargs, operations, looptoken)
looptoken._x86_arglocs = arglocs
looptoken._x86_bootstrap_code = self.mc.tell()
adr_stackadjust = self._assemble_bootstrap_code(inputargs, arglocs)
looptoken._x86_loop_code = self.mc.tell()
looptoken._x86_stack_depth = -1 # temporarily
stack_depth = self._assemble(regalloc, operations)
self._patch_stackadjust(adr_stackadjust, stack_depth)
looptoken._x86_stack_depth = stack_depth
def assemble_loop(self, inputargs, operations, looptoken):
"""adds the following attributes to looptoken:
_x86_loop_code (an integer giving an address)
_x86_bootstrap_code (an integer giving an address)
_x86_stack_depth
_x86_arglocs
"""
self.make_sure_mc_exists()
regalloc = RegAlloc(self, self.cpu.translate_support_code)
arglocs = regalloc.prepare_loop(inputargs, operations, looptoken)
looptoken._x86_arglocs = arglocs
looptoken._x86_bootstrap_code = self.mc.tell()
adr_stackadjust = self._assemble_bootstrap_code(inputargs, arglocs)
looptoken._x86_loop_code = self.mc.tell()
looptoken._x86_stack_depth = -1 # temporarily
stack_depth = self._assemble(regalloc, operations)
self._patch_stackadjust(adr_stackadjust, stack_depth)
looptoken._x86_stack_depth = stack_depth
def prepare_loop(self, ops):
loop = self.parse(ops)
regalloc = RegAlloc(self.cpu.assembler, False)
regalloc.prepare_loop(loop.inputargs, loop.operations,
loop.original_jitcell_token, [])
return regalloc
