def genop_malloc_varsize(self, varsizealloctoken, gv_size):
log('%s Builder.genop_malloc_varsize %s,%s' % (
self.block.label, varsizealloctoken, gv_size.operand()))
length_offset, items_offset, item_size, item_type = varsizealloctoken
gv_gc_malloc_fnaddr = Var('%s (%s)*' % (pi8, i32))
#or use addGlobalFunctionMapping in libllvmjit.restart()
self.asm.append(' %s=%s %s %d to %s ;gc_malloc_fnaddr (varsize)' % (
gv_gc_malloc_fnaddr.operand2(), inttoptr, i32,
gc_malloc_fnaddr(), gv_gc_malloc_fnaddr.type))
op_size = self._itemaddr(varsizealloctoken, gv_size)
gv_result = Var(pi8)
self.asm.append(' %s=call %s(%s)' % (
gv_result.operand2(), gv_gc_malloc_fnaddr.operand(), op_size.operand()))
gv_p = Var(gv_result.type)
self.asm.append(' %s=getelementptr %s,%s %s' % (
gv_p.operand2(), gv_result.operand(), i32, length_offset))
gv_p2 = self._cast_to(gv_p, pi32) #warning: length field hardcoded as int here
self.asm.append(' store %s, %s' % (gv_size.operand(), gv_p2.operand()))
return gv_result
def _abs(self, gv_x, nullstr='0'):
gv_comp = Var(i1)
gv_abs_pos = Var(gv_x.type)
gv_result = Var(gv_x.type)
if nullstr == 'null' or nullstr == '0':
cmp = scmp
else:
cmp = fcmp
self.asm.append(' %s=%sge %s,%s' % (
gv_comp.operand2(), cmp, gv_x.operand(), nullstr))
self.asm.append(' %s=sub %s %s,%s' % (
gv_abs_pos.operand2(), gv_x.type, nullstr, gv_x.operand2()))
self.asm.append(' %s=select %s,%s,%s' % (
gv_result.operand2(), gv_comp.operand(), gv_x.operand(), gv_abs_pos.operand()))
return gv_result
def genop_call(self, sigtoken, gv_fnptr, args_gv):
log('%s Builder.genop_call %s,%s,%s' % (
self.block.label, sigtoken, gv_fnptr, [v.operand() for v in args_gv]))
argtypes, restype = sigtoken
if isinstance(gv_fnptr, AddrConst):
gv_fn = Var(self._funcsig_type(args_gv, restype) + '*')
self.asm.append(' %s=%s %s %s to %s' % (
gv_fn.operand2(), inttoptr, i32, gv_fnptr.operand2(), gv_fn.type))
funcsig = gv_fn.operand()
else:
try:
funcsig = self.rgenop.funcsig[gv_fnptr.get_integer_value()]
except KeyError:
funcsig = 'TODO: funcsig here'
py.test.skip('call an address directly not supported yet')
args_gv2 = []
for v in args_gv:
if v.is_const and v.type[-1] == '*': #or use some kind of 'inline' cast (see LangRef)
t = Var(v.type)
self.asm.append(' %s=%s %s %s to %s' % (
t.operand2(), inttoptr, i32, v.operand2(), v.type))
v = t
args_gv2.append(v)
gv_returnvar = Var(restype)
self.asm.append(' %s=call %s(%s)' % (
gv_returnvar.operand2(),
funcsig,
','.join([v.operand() for v in args_gv2])))
return gv_returnvar
def op_int_rshift(self, gv_x, gv_y):
gv_y_i8 = Var(i8)
self.asm.append(' %s=%s %s to %s' % (
gv_y_i8.operand2(), trunc, gv_y.operand(), i8))
gv_result = Var(gv_x.type)
self.asm.append(' %s=%sshr %s,%s' % (
gv_result.operand2(), shr_prefix[gv_x.signed], gv_x.operand(), gv_y_i8.operand()))
return gv_result
def op_int_lshift(self, gv_x, gv_y):
gv_y_i8 = Var(i8)
self.asm.append(' %s=%s %s to %s' % (
gv_y_i8.operand2(), trunc, gv_y.operand(), i8))
gv_result = Var(gv_x.type)
self.asm.append(' %s=shl %s,%s' % (
gv_result.operand2(), gv_x.operand(), gv_y_i8.operand()))
return gv_result
def _itemaddr(self, arraytoken, gv_index):
length_offset, items_offset, item_size, item_type = arraytoken
gv_size2 = Var(i32) #i386 uses self.itemaddr here
self.asm.append(' %s=mul %s,%d' % (
gv_size2.operand2(), gv_index.operand(), item_size))
gv_size3 = Var(i32)
self.asm.append(' %s=add %s,%d' % (
gv_size3.operand2(), gv_size2.operand(), items_offset))
return gv_size3
def genop_malloc_fixedsize(self, size):
log('%s Builder.genop_malloc_fixedsize %s' % (
self.block.label, str(size)))
gv_gc_malloc_fnaddr = Var('%s (%s)*' % (pi8, i32))
gv_result = Var(pi8)
#or use addGlobalFunctionMapping in libllvmjit.restart()
self.asm.append(' %s=%s %s %d to %s ;gc_malloc_fnaddr' % (
gv_gc_malloc_fnaddr.operand2(), inttoptr, i32,
gc_malloc_fnaddr(), gv_gc_malloc_fnaddr.type))
self.asm.append(' %s=call %s(%s %d)' % (
gv_result.operand2(), gv_gc_malloc_fnaddr.operand(), i32, size))
return gv_result
def genop_setarrayitem(self, arraytoken, gv_ptr, gv_index, gv_value):
array_length_offset, array_items_offset, item_size, item_type = arraytoken
log('%s Builder.genop_setarrayitem %s,%s[%s]=%s' % (
self.block.label, arraytoken, gv_ptr.operand(), gv_index.operand(), gv_value.operand()))
gv_ptr_var = self._as_var(gv_ptr)
gv_p = Var(gv_ptr_var.type)
self.asm.append(' %s=getelementptr %s,%s %s' % (
gv_p.operand2(), gv_ptr_var.operand(), i32, array_items_offset))
gv_p2 = self._cast_to(gv_p, item_type + '*')
gv_p3 = Var(gv_p2.type)
self.asm.append(' %s=getelementptr %s,%s' % (
gv_p3.operand2(), gv_p2.operand(), gv_index.operand()))
self.asm.append(' store %s,%s' % (
gv_value.operand(), gv_p3.operand()))
