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authorFabrice Desclaux <fabrice.desclaux@cea.fr>2020-12-07 17:28:54 +0100
committerFabrice Desclaux <fabrice.desclaux@cea.fr>2020-12-24 17:15:46 +0100
commite6ec952904419c73531ab62443ade23985317daf (patch)
treecb7063e3958c2b7e65d29cb25bb38a64e6a2f060
parentf178c253c4665cb3e495073168dc244782d07c17 (diff)
downloadmiasm-e6ec952904419c73531ab62443ade23985317daf.tar.gz
miasm-e6ec952904419c73531ab62443ade23985317daf.zip
Rename ira => LifterModelCall
-rw-r--r--example/disasm/dis_binary_ir.py4
-rw-r--r--example/disasm/dis_binary_ira.py4
-rw-r--r--example/disasm/full.py25
-rw-r--r--example/expression/access_c.py10
-rw-r--r--example/expression/asm_to_ir.py2
-rw-r--r--example/expression/constant_propagation.py2
-rw-r--r--example/expression/export_llvm.py6
-rw-r--r--example/expression/get_read_write.py2
-rw-r--r--example/expression/graph_dataflow.py2
-rw-r--r--example/expression/solve_condition_stp.py26
-rw-r--r--example/ida/ctype_propagation.py12
-rw-r--r--example/ida/depgraph.py16
-rw-r--r--example/ida/graph_ir.py6
-rw-r--r--example/ida/symbol_exec.py6
-rw-r--r--example/symbol_exec/depgraph.py2
-rw-r--r--example/symbol_exec/dse_crackme.py22
-rw-r--r--example/symbol_exec/single_instr.py10
-rw-r--r--miasm/analysis/data_flow.py8
-rw-r--r--miasm/analysis/disasm_cb.py22
-rw-r--r--miasm/analysis/dse.py40
-rw-r--r--miasm/analysis/machine.py44
-rw-r--r--miasm/analysis/simplifier.py30
-rw-r--r--miasm/arch/aarch64/ira.py6
-rw-r--r--miasm/arch/arm/ira.py6
-rw-r--r--miasm/arch/mep/ira.py4
-rw-r--r--miasm/arch/mips32/ira.py4
-rw-r--r--miasm/arch/msp430/ira.py4
-rw-r--r--miasm/arch/ppc/ira.py4
-rw-r--r--miasm/arch/x86/ira.py4
-rw-r--r--miasm/ir/analysis.py4
-rw-r--r--miasm/jitter/llvmconvert.py44
-rw-r--r--test/analysis/data_flow.py330
-rw-r--r--test/analysis/depgraph.py4
-rw-r--r--test/analysis/dse.py6
-rw-r--r--test/analysis/unssa.py8
-rw-r--r--test/arch/mep/ir/test_ir.py2
-rw-r--r--test/arch/mep/ir/ut_helpers_ir.py2
-rw-r--r--test/ir/reduce_graph.py4
-rwxr-xr-xtest/ir/symbexec.py8
-rwxr-xr-xtest/test_all.py4
40 files changed, 376 insertions, 373 deletions
diff --git a/example/disasm/dis_binary_ir.py b/example/disasm/dis_binary_ir.py
index 3facd74b..6ad69b05 100644
--- a/example/disasm/dis_binary_ir.py
+++ b/example/disasm/dis_binary_ir.py
@@ -25,8 +25,8 @@ asmcfg = mdis.dis_multiblock(addr)
 #    End common section             #
 #####################################
 
-# Get an IR converter
-ir_arch = machine.ir(mdis.loc_db)
+# Get a Lifter
+ir_arch = machine.lifter(mdis.loc_db)
 
 # Get the IR of the asmcfg
 ircfg = ir_arch.new_ircfg_from_asmcfg(asmcfg)
diff --git a/example/disasm/dis_binary_ira.py b/example/disasm/dis_binary_ira.py
index bfed3497..95b3a70b 100644
--- a/example/disasm/dis_binary_ira.py
+++ b/example/disasm/dis_binary_ira.py
@@ -29,7 +29,7 @@ asmcfg = mdis.dis_multiblock(addr)
 # Get an IRA converter
 # The sub call are modelised by default operators
 # call_func_ret and call_func_stack
-ir_arch_analysis = machine.ira(mdis.loc_db)
+ir_arch_analysis = machine.lifter_model_call(mdis.loc_db)
 
 # Get the IR of the asmcfg
 ircfg_analysis = ir_arch_analysis.new_ircfg_from_asmcfg(asmcfg)
@@ -39,4 +39,4 @@ for irblock in viewvalues(ircfg_analysis.blocks):
     print(irblock)
 
 # Output ir control flow graph in a dot file
-open('bin_ira_cfg.dot', 'w').write(ircfg_analysis.dot())
+open('bin_lifter_model_call_cfg.dot', 'w').write(ircfg_analysis.dot())
diff --git a/example/disasm/full.py b/example/disasm/full.py
index 47eca56d..3408e6d7 100644
--- a/example/disasm/full.py
+++ b/example/disasm/full.py
@@ -106,7 +106,6 @@ if not arch:
 # Instance the arch-dependent machine
 machine = Machine(arch)
 mn, dis_engine = machine.mn, machine.dis_engine
-ira, ir = machine.ira, machine.ir
 log.info('ok')
 
 mdis = dis_engine(bs, loc_db=cont.loc_db)
@@ -215,9 +214,9 @@ if args.propagexpr:
     args.gen_ir = True
 
 
-class IRADelModCallStack(ira):
+class LifterDelModCallStack(machine.lifter_model_call):
         def call_effects(self, addr, instr):
-            assignblks, extra = super(IRADelModCallStack, self).call_effects(addr, instr)
+            assignblks, extra = super(LifterDelModCallStack, self).call_effects(addr, instr)
             if not args.calldontmodstack:
                 return assignblks, extra
             out = []
@@ -232,21 +231,21 @@ class IRADelModCallStack(ira):
 
 # Bonus, generate IR graph
 if args.gen_ir:
-    log.info("generating IR and IR analysis")
+    log.info("Lift and Lift with modeled calls")
 
-    ir_arch = ir(mdis.loc_db)
-    ir_arch_a = IRADelModCallStack(mdis.loc_db)
+    lifter = machine.lifter(mdis.loc_db)
+    lifter_model_call = LifterDelModCallStack(mdis.loc_db)
 
-    ircfg = ir_arch.new_ircfg()
-    ircfg_a = ir_arch.new_ircfg()
+    ircfg = lifter.new_ircfg()
+    ircfg_a = lifter.new_ircfg()
 
     head = list(entry_points)[0]
 
     for ad, asmcfg in viewitems(all_funcs_blocks):
         log.info("generating IR... %x" % ad)
         for block in asmcfg.blocks:
-            ir_arch.add_asmblock_to_ircfg(block, ircfg)
-            ir_arch_a.add_asmblock_to_ircfg(block, ircfg_a)
+            lifter.add_asmblock_to_ircfg(block, ircfg)
+            lifter_model_call.add_asmblock_to_ircfg(block, ircfg_a)
 
     log.info("Print blocks (without analyse)")
     for label, block in viewitems(ircfg.blocks):
@@ -260,7 +259,7 @@ if args.gen_ir:
 
     if args.simplify > 0:
         log.info("Simplify...")
-        ircfg_simplifier = IRCFGSimplifierCommon(ir_arch_a)
+        ircfg_simplifier = IRCFGSimplifierCommon(lifter_model_call)
         ircfg_simplifier.simplify(ircfg_a, head)
         log.info("ok...")
 
@@ -309,12 +308,12 @@ if args.propagexpr:
             ssa = self.do_simplify_loop(ssa, head)
             ircfg = self.ssa_to_unssa(ssa, head)
 
-            ircfg_simplifier = IRCFGSimplifierCommon(self.ir_arch)
+            ircfg_simplifier = IRCFGSimplifierCommon(self.lifter)
             ircfg_simplifier.deadremoval.add_expr_to_original_expr(ssa.ssa_variable_to_expr)
             ircfg_simplifier.simplify(ircfg, head)
             return ircfg
 
     head = list(entry_points)[0]
-    simplifier = CustomIRCFGSimplifierSSA(ir_arch_a)
+    simplifier = CustomIRCFGSimplifierSSA(lifter_model_call)
     ircfg = simplifier.simplify(ircfg_a, head)
     open('final.dot', 'w').write(ircfg.dot())
diff --git a/example/expression/access_c.py b/example/expression/access_c.py
index 3cc8e6a2..fd50a917 100644
--- a/example/expression/access_c.py
+++ b/example/expression/access_c.py
@@ -95,10 +95,10 @@ class MyExprToAccessC(ExprToAccessC):
     reduction_rules = ExprToAccessC.reduction_rules + [reduce_compose]
 
 
-def get_funcs_arg0(ctx, ira, ircfg, lbl_head):
+def get_funcs_arg0(ctx, lifter_model_call, ircfg, lbl_head):
     """Compute DependencyGraph on the func @lbl_head"""
     g_dep = DependencyGraph(ircfg, follow_call=False)
-    element = ira.arch.regs.RSI
+    element = lifter_model_call.arch.regs.RSI
 
     for loc_key, index in find_call(ircfg):
         irb = ircfg.get_block(loc_key)
@@ -106,7 +106,7 @@ def get_funcs_arg0(ctx, ira, ircfg, lbl_head):
         print('Analysing references from:', hex(instr.offset), instr)
         g_list = g_dep.get(irb.loc_key, set([element]), index, set([lbl_head]))
         for dep in g_list:
-            emul_result = dep.emul(ira, ctx)
+            emul_result = dep.emul(lifter_model_call, ctx)
             value = emul_result[element]
             yield value
 
@@ -144,14 +144,14 @@ types_mngr = CTypesManagerNotPacked(types_ast, base_types)
 cont = Container.fallback_container(data, None, addr=0)
 
 machine = Machine("x86_64")
-dis_engine, ira = machine.dis_engine, machine.ira
+dis_engine, lifter_model_call = machine.dis_engine, machine.lifter_model_call
 
 mdis = dis_engine(cont.bin_stream, loc_db=loc_db)
 addr_head = 0
 asmcfg = mdis.dis_multiblock(addr_head)
 lbl_head = loc_db.get_offset_location(addr_head)
 
-ir_arch_a = ira(loc_db)
+ir_arch_a = lifter_model_call(loc_db)
 ircfg = ir_arch_a.new_ircfg_from_asmcfg(asmcfg)
 
 open('graph_irflow.dot', 'w').write(ircfg.dot())
diff --git a/example/expression/asm_to_ir.py b/example/expression/asm_to_ir.py
index 8ecc4f24..32d4ae8b 100644
--- a/example/expression/asm_to_ir.py
+++ b/example/expression/asm_to_ir.py
@@ -7,7 +7,7 @@ from miasm.arch.x86.arch import mn_x86
 from miasm.core import parse_asm
 from miasm.expression.expression import *
 from miasm.core import asmblock
-from miasm.arch.x86.ira import ir_a_x86_32
+from miasm.arch.x86.lifter_model_call import ir_a_x86_32
 from miasm.analysis.data_flow import DeadRemoval
 from miasm.core.locationdb import LocationDB
 
diff --git a/example/expression/constant_propagation.py b/example/expression/constant_propagation.py
index a5929eed..0ea8028c 100644
--- a/example/expression/constant_propagation.py
+++ b/example/expression/constant_propagation.py
@@ -30,7 +30,7 @@ machine = Machine("x86_32")
 loc_db = LocationDB()
 cont = Container.from_stream(open(args.filename, 'rb'), loc_db)
 mdis = machine.dis_engine(cont.bin_stream, loc_db=loc_db)
-ir_arch = machine.ira(mdis.loc_db)
+ir_arch = machine.lifter_model_call(mdis.loc_db)
 addr = int(args.address, 0)
 deadrm = DeadRemoval(ir_arch)
 
diff --git a/example/expression/export_llvm.py b/example/expression/export_llvm.py
index a4c65787..74587ffd 100644
--- a/example/expression/export_llvm.py
+++ b/example/expression/export_llvm.py
@@ -17,16 +17,16 @@ loc_db = LocationDB()
 # This part focus on obtaining an IRCFG to transform #
 cont = Container.from_stream(open(args.target, 'rb'), loc_db)
 machine = Machine(args.architecture if args.architecture else cont.arch)
-ir = machine.ir(loc_db)
+lifter = machine.lifter(loc_db)
 dis = machine.dis_engine(cont.bin_stream, loc_db=loc_db)
 asmcfg = dis.dis_multiblock(int(args.addr, 0))
-ircfg = ir.new_ircfg_from_asmcfg(asmcfg)
+ircfg = lifter.new_ircfg_from_asmcfg(asmcfg)
 ircfg.simplify(expr_simp_high_to_explicit)
 ######################################################
 
 # Instantiate a context and the function to fill
 context = LLVMContext_IRCompilation()
-context.ir_arch = ir
+context.lifter = lifter
 
 func = LLVMFunction_IRCompilation(context, name="test")
 func.ret_type = llvm_ir.VoidType()
diff --git a/example/expression/get_read_write.py b/example/expression/get_read_write.py
index cf333d0c..d6bb37c2 100644
--- a/example/expression/get_read_write.py
+++ b/example/expression/get_read_write.py
@@ -4,7 +4,7 @@ from future.utils import viewitems
 
 from miasm.arch.x86.arch import mn_x86
 from miasm.expression.expression import get_rw
-from miasm.arch.x86.ira import ir_a_x86_32
+from miasm.arch.x86.lifter_model_call import ir_a_x86_32
 from miasm.core.locationdb import LocationDB
 
 loc_db = LocationDB()
diff --git a/example/expression/graph_dataflow.py b/example/expression/graph_dataflow.py
index 4b428df7..661d0037 100644
--- a/example/expression/graph_dataflow.py
+++ b/example/expression/graph_dataflow.py
@@ -139,7 +139,7 @@ print('ok')
 
 
 print('generating dataflow graph for:')
-ir_arch_analysis = machine.ira(loc_db)
+ir_arch_analysis = machine.lifter_model_call(loc_db)
 ircfg = ir_arch_analysis.new_ircfg_from_asmcfg(asmcfg)
 deadrm = DeadRemoval(ir_arch_analysis)
 
diff --git a/example/expression/solve_condition_stp.py b/example/expression/solve_condition_stp.py
index 3743bfad..634e2337 100644
--- a/example/expression/solve_condition_stp.py
+++ b/example/expression/solve_condition_stp.py
@@ -30,7 +30,7 @@ if not args:
     sys.exit(0)
 
 
-def emul_symb(ir_arch, ircfg, mdis, states_todo, states_done):
+def emul_symb(lifter, ircfg, mdis, states_todo, states_done):
     while states_todo:
         addr, symbols, conds = states_todo.pop()
         print('*' * 40, "addr", addr, '*' * 40)
@@ -38,11 +38,11 @@ def emul_symb(ir_arch, ircfg, mdis, states_todo, states_done):
             print('Known state, skipping', addr)
             continue
         states_done.add((addr, symbols, conds))
-        symbexec = SymbolicExecutionEngine(ir_arch)
+        symbexec = SymbolicExecutionEngine(lifter)
         symbexec.symbols = symbols.copy()
-        if ir_arch.pc in symbexec.symbols:
-            del symbexec.symbols[ir_arch.pc]
-        irblock = get_block(ir_arch, ircfg, mdis, addr)
+        if lifter.pc in symbexec.symbols:
+            del symbexec.symbols[lifter.pc]
+        irblock = get_block(lifter, ircfg, mdis, addr)
 
         print('Run block:')
         print(irblock)
@@ -87,9 +87,9 @@ if __name__ == '__main__':
 
     cont = Container.from_stream(open(args[0], 'rb'), loc_db)
     mdis = machine.dis_engine(cont.bin_stream, loc_db=loc_db)
-    ir_arch = machine.ir(mdis.loc_db)
-    ircfg = ir_arch.new_ircfg()
-    symbexec = SymbolicExecutionEngine(ir_arch)
+    lifter = machine.lifter(mdis.loc_db)
+    ircfg = lifter.new_ircfg()
+    symbexec = SymbolicExecutionEngine(lifter)
 
     asmcfg = parse_asm.parse_txt(
         machine.mn, 32, '''
@@ -129,19 +129,19 @@ if __name__ == '__main__':
     print(block)
 
     # add fake address and len to parsed instructions
-    ir_arch.add_asmblock_to_ircfg(block, ircfg)
+    lifter.add_asmblock_to_ircfg(block, ircfg)
     irb = ircfg.blocks[init_lbl]
     symbexec.eval_updt_irblock(irb)
     symbexec.dump(ids=False)
-    # reset ir_arch blocks
-    ir_arch.blocks = {}
+    # reset lifter blocks
+    lifter.blocks = {}
 
     states_todo = set()
     states_done = set()
     states_todo.add((addr, symbexec.symbols, ()))
 
     # emul blocks, propagate states
-    emul_symb(ir_arch, ircfg, mdis, states_todo, states_done)
+    emul_symb(lifter, ircfg, mdis, states_todo, states_done)
 
     all_info = []
 
@@ -156,7 +156,7 @@ if __name__ == '__main__':
 
     all_cases = set()
 
-    symbexec = SymbolicExecutionEngine(ir_arch)
+    symbexec = SymbolicExecutionEngine(lifter)
     for addr, reqs_cond in all_info:
         out = ['(set-logic QF_ABV)',
                '(set-info :smt-lib-version 2.0)']
diff --git a/example/ida/ctype_propagation.py b/example/ida/ctype_propagation.py
index 1f55a975..3de81d0d 100644
--- a/example/ida/ctype_propagation.py
+++ b/example/ida/ctype_propagation.py
@@ -222,9 +222,9 @@ class CTypeEngineFixer(SymbExecCTypeFix):
                                                cst_propag_link)
 
 
-def get_ira_call_fixer(ira):
+def get_lifter_model_call_call_fixer(lifter_model_call):
 
-    class iraCallStackFixer(ira):
+    class lifter_model_callCallStackFixer(lifter_model_call):
 
         def call_effects(self, ad, instr):
             print(hex(instr.offset), instr)
@@ -241,7 +241,7 @@ def get_ira_call_fixer(ira):
             )
             return [call_assignblk], []
 
-    return iraCallStackFixer
+    return lifter_model_callCallStackFixer
 
 
 def analyse_function():
@@ -262,7 +262,7 @@ def analyse_function():
 
     # Init
     machine = guess_machine(addr=addr)
-    mn, dis_engine, ira = machine.mn, machine.dis_engine, machine.ira
+    mn, dis_engine, lifter_model_call = machine.mn, machine.dis_engine, machine.lifter_model_call
 
     bs = bin_stream_ida()
     loc_db = LocationDB()
@@ -272,8 +272,8 @@ def analyse_function():
         mdis.dont_dis = [end]
 
 
-    iraCallStackFixer = get_ira_call_fixer(ira)
-    ir_arch = iraCallStackFixer(loc_db)
+    lifter_model_callCallStackFixer = get_lifter_model_call_call_fixer(lifter_model_call)
+    ir_arch = lifter_model_callCallStackFixer(loc_db)
 
     asmcfg = mdis.dis_multiblock(addr)
     # Generate IR
diff --git a/example/ida/depgraph.py b/example/ida/depgraph.py
index e98d64c5..4a0fb1e9 100644
--- a/example/ida/depgraph.py
+++ b/example/ida/depgraph.py
@@ -26,9 +26,9 @@ from utils import guess_machine
 
 class depGraphSettingsForm(ida_kernwin.Form):
 
-    def __init__(self, ira, ircfg, mn):
+    def __init__(self, lifter_model_call, ircfg, mn):
 
-        self.ira = ira
+        self.lifter_model_call = lifter_model_call
         self.ircfg = ircfg
         self.mn = mn
         self.stk_args = {'ARG%d' % i:i for i in range(10)}
@@ -51,7 +51,7 @@ class depGraphSettingsForm(ida_kernwin.Form):
         assert line_nb is not None
         cur_loc_key = str(cur_block.loc_key)
         loc_keys = sorted(map(str, ircfg.blocks))
-        regs = sorted(ira.arch.regs.all_regs_ids_byname)
+        regs = sorted(lifter_model_call.arch.regs.all_regs_ids_byname)
         regs += list(self.stk_args)
         reg_default = regs[0]
         for i in range(10):
@@ -130,13 +130,13 @@ Method to use:
             line = self.ircfg.blocks[self.loc_key][self.line_nb].instr
             arg_num = self.stk_args[value]
             stk_high = m2_expr.ExprInt(idc.get_spd(line.offset), ir_arch.sp.size)
-            stk_off = m2_expr.ExprInt(self.ira.sp.size // 8 * arg_num, ir_arch.sp.size)
-            element =  m2_expr.ExprMem(self.mn.regs.regs_init[ir_arch.sp] + stk_high + stk_off, self.ira.sp.size)
+            stk_off = m2_expr.ExprInt(self.lifter_model_call.sp.size // 8 * arg_num, ir_arch.sp.size)
+            element =  m2_expr.ExprMem(self.mn.regs.regs_init[ir_arch.sp] + stk_high + stk_off, self.lifter_model_call.sp.size)
             element = expr_simp(element)
             # Force stack unaliasing
             self.stk_unalias_force = True
         elif value:
-            element = self.ira.arch.regs.all_regs_ids_byname.get(value, None)
+            element = self.lifter_model_call.arch.regs.all_regs_ids_byname.get(value, None)
 
         else:
             raise ValueError("Unknown element '%s'!" % value)
@@ -214,13 +214,13 @@ def launch_depgraph():
 
     # Init
     machine = guess_machine(addr=func.start_ea)
-    mn, dis_engine, ira = machine.mn, machine.dis_engine, machine.ira
+    mn, dis_engine, lifter_model_call = machine.mn, machine.dis_engine, machine.lifter_model_call
 
     bs = bin_stream_ida()
     loc_db = LocationDB()
 
     mdis = dis_engine(bs, loc_db=loc_db, dont_dis_nulstart_bloc=True)
-    ir_arch = ira(loc_db)
+    ir_arch = lifter_model_call(loc_db)
 
     # Populate symbols with ida names
     for ad, name in idautils.Names():
diff --git a/example/ida/graph_ir.py b/example/ida/graph_ir.py
index d10e1ebd..c827bbe2 100644
--- a/example/ida/graph_ir.py
+++ b/example/ida/graph_ir.py
@@ -180,9 +180,9 @@ def is_addr_ro_variable(bs, addr, size):
 
 def build_graph(start_addr, type_graph, simplify=False, use_ida_stack=True, dontmodstack=False, loadint=False, verbose=False):
     machine = guess_machine(addr=start_addr)
-    dis_engine, ira = machine.dis_engine, machine.ira
+    dis_engine, lifter_model_call = machine.dis_engine, machine.lifter_model_call
 
-    class IRADelModCallStack(ira):
+    class IRADelModCallStack(lifter_model_call):
         def call_effects(self, addr, instr):
             assignblks, extra = super(IRADelModCallStack, self).call_effects(addr, instr)
             if use_ida_stack:
@@ -281,7 +281,7 @@ def build_graph(start_addr, type_graph, simplify=False, use_ida_stack=True, dont
         return
 
 
-    class IRAOutRegs(ira):
+    class IRAOutRegs(lifter_model_call):
         def get_out_regs(self, block):
             regs_todo = super(IRAOutRegs, self).get_out_regs(block)
             out = {}
diff --git a/example/ida/symbol_exec.py b/example/ida/symbol_exec.py
index b51ef9ee..ef5db082 100644
--- a/example/ida/symbol_exec.py
+++ b/example/ida/symbol_exec.py
@@ -150,11 +150,11 @@ def symbolic_exec():
 
     mdis.dont_dis = [end]
     asmcfg = mdis.dis_multiblock(start)
-    ira = machine.ira(loc_db=loc_db)
-    ircfg = ira.new_ircfg_from_asmcfg(asmcfg)
+    lifter_model_call = machine.lifter_model_call(loc_db=loc_db)
+    ircfg = lifter_model_call.new_ircfg_from_asmcfg(asmcfg)
 
     print("Run symbolic execution...")
-    sb = SymbolicExecutionEngine(ira, machine.mn.regs.regs_init)
+    sb = SymbolicExecutionEngine(lifter_model_call, machine.mn.regs.regs_init)
     sb.run_at(ircfg, start)
     modified = {}
 
diff --git a/example/symbol_exec/depgraph.py b/example/symbol_exec/depgraph.py
index 8285452e..62190e6b 100644
--- a/example/symbol_exec/depgraph.py
+++ b/example/symbol_exec/depgraph.py
@@ -52,7 +52,7 @@ for element in args.element:
         raise ValueError("Unknown element '%s'" % element)
 
 mdis = machine.dis_engine(cont.bin_stream, dont_dis_nulstart_bloc=True, loc_db=loc_db)
-ir_arch = machine.ira(loc_db)
+ir_arch = machine.lifter_model_call(loc_db)
 
 # Common argument forms
 init_ctx = {}
diff --git a/example/symbol_exec/dse_crackme.py b/example/symbol_exec/dse_crackme.py
index e014ada2..cdaf5a1a 100644
--- a/example/symbol_exec/dse_crackme.py
+++ b/example/symbol_exec/dse_crackme.py
@@ -137,7 +137,7 @@ FILE_stream = ExprId("FILE_0", 64)
 FILE_size = ExprId("FILE_0_size", 64)
 
 def xxx_fopen_symb(dse):
-    regs = dse.ir_arch.arch.regs
+    regs = dse.lifter.arch.regs
     fname_addr = dse.eval_expr(regs.RDI)
     mode = dse.eval_expr(regs.RSI)
     assert fname_addr.is_int()
@@ -151,13 +151,13 @@ def xxx_fopen_symb(dse):
 
     dse.update_state({
         regs.RSP: dse.eval_expr(regs.RSP + ExprInt(8, regs.RSP.size)),
-        dse.ir_arch.IRDst: ret_addr,
+        dse.lifter.IRDst: ret_addr,
         regs.RIP: ret_addr,
         regs.RAX: ret_value,
     })
 
 def xxx_fread_symb(dse):
-    regs = dse.ir_arch.arch.regs
+    regs = dse.lifter.arch.regs
     ptr = dse.eval_expr(regs.RDI)
     size = dse.eval_expr(regs.RSI)
     nmemb = dse.eval_expr(regs.RDX)
@@ -179,21 +179,21 @@ def xxx_fread_symb(dse):
 
     update.update({
         regs.RSP: dse.symb.eval_expr(regs.RSP + ExprInt(8, regs.RSP.size)),
-        dse.ir_arch.IRDst: ret_addr,
+        dse.lifter.IRDst: ret_addr,
         regs.RIP: ret_addr,
         regs.RAX: ret_value,
     })
     dse.update_state(update)
 
 def xxx_fclose_symb(dse):
-    regs = dse.ir_arch.arch.regs
+    regs = dse.lifter.arch.regs
     stream = dse.eval_expr(regs.RDI)
     FILE_to_info_symb[stream].close()
 
     ret_addr = ExprInt(dse.jitter.get_stack_arg(0), regs.RIP.size)
     dse.update_state({
         regs.RSP: dse.symb.eval_expr(regs.RSP + ExprInt(8, regs.RSP.size)),
-        dse.ir_arch.IRDst: ret_addr,
+        dse.lifter.IRDst: ret_addr,
         regs.RIP: ret_addr,
         regs.RAX: ExprInt(0, regs.RAX.size),
     })
@@ -203,7 +203,7 @@ def xxx_fclose_symb(dse):
 def xxx___libc_start_main_symb(dse):
     # ['RDI', 'RSI', 'RDX', 'RCX', 'R8', 'R9']
     # main, argc, argv, ...
-    regs = dse.ir_arch.arch.regs
+    regs = dse.lifter.arch.regs
     top_stack = dse.eval_expr(regs.RSP)
     main_addr = dse.eval_expr(regs.RDI)
     argc = dse.eval_expr(regs.RSI)
@@ -214,8 +214,8 @@ def xxx___libc_start_main_symb(dse):
         ExprMem(top_stack, 64): hlt_addr,
         regs.RDI: argc,
         regs.RSI: argv,
-        dse.ir_arch.IRDst: main_addr,
-        dse.ir_arch.pc: main_addr,
+        dse.lifter.IRDst: main_addr,
+        dse.lifter.pc: main_addr,
     })
 
 # Stop the execution on puts and get back the corresponding string
@@ -248,9 +248,9 @@ dse.attach(sb.jitter)
 # Update the jitter state: df is read, but never set
 # Approaches: specific or generic
 # - Specific:
-#   df_value = ExprInt(sb.jitter.cpu.df, dse.ir_arch.arch.regs.df.size)
+#   df_value = ExprInt(sb.jitter.cpu.df, dse.lifter.arch.regs.df.size)
 #   dse.update_state({
-#       dse.ir_arch.arch.regs.df: df_value
+#       dse.lifter.arch.regs.df: df_value
 #   })
 # - Generic:
 dse.update_state_from_concrete()
diff --git a/example/symbol_exec/single_instr.py b/example/symbol_exec/single_instr.py
index 789252df..0aabbf8b 100644
--- a/example/symbol_exec/single_instr.py
+++ b/example/symbol_exec/single_instr.py
@@ -21,12 +21,12 @@ mdis.lines_wd = 1
 asm_block = mdis.dis_block(START_ADDR)
 
 # Translate ASM -> IR
-ira = machine.ira(mdis.loc_db)
-ircfg = ira.new_ircfg()
-ira.add_asmblock_to_ircfg(asm_block, ircfg)
+lifter_model_call = machine.lifter_model_call(mdis.loc_db)
+ircfg = lifter_model_call.new_ircfg()
+lifter_model_call.add_asmblock_to_ircfg(asm_block, ircfg)
 
 # Instantiate a Symbolic Execution engine with default value for registers
-symb = SymbolicExecutionEngine(ira)
+symb = SymbolicExecutionEngine(lifter_model_call)
 
 # Emulate one IR basic block
 ## Emulation of several basic blocks can be done through .emul_ir_blocks
@@ -39,6 +39,6 @@ print('Modified memory (should be empty):')
 symb.dump(ids=False)
 
 # Check final status
-eax, ebx = ira.arch.regs.EAX, ira.arch.regs.EBX
+eax, ebx = lifter_model_call.arch.regs.EAX, lifter_model_call.arch.regs.EBX
 assert symb.symbols[eax] == ebx
 assert eax in symb.symbols
diff --git a/miasm/analysis/data_flow.py b/miasm/analysis/data_flow.py
index c68e9e65..fb04d5fd 100644
--- a/miasm/analysis/data_flow.py
+++ b/miasm/analysis/data_flow.py
@@ -793,7 +793,7 @@ def get_interval_length(interval_in):
 def check_expr_below_stack(ir_arch_a, expr):
     """
     Return False if expr pointer is below original stack pointer
-    @ir_arch_a: ira instance
+    @ir_arch_a: lifter_model_call instance
     @expr: Expression instance
     """
     ptr = expr.ptr
@@ -809,7 +809,7 @@ def retrieve_stack_accesses(ir_arch_a, ircfg):
     """
     Walk the ssa graph and find stack based variables.
     Return a dictionary linking stack base address to its size/name
-    @ir_arch_a: ira instance
+    @ir_arch_a: lifter_model_call instance
     @ircfg: IRCFG instance
     """
     stack_vars = set()
@@ -889,7 +889,7 @@ def replace_stack_vars(ir_arch_a, ircfg):
 
     WARNING: may fail
 
-    @ir_arch_a: ira instance
+    @ir_arch_a: lifter_model_call instance
     @ircfg: IRCFG instance
     """
 
@@ -949,7 +949,7 @@ def read_mem(bs, expr):
 def load_from_int(ir_arch, bs, is_addr_ro_variable):
     """
     Replace memory read based on constant with static value
-    @ir_arch: ira instance
+    @ir_arch: lifter_model_call instance
     @bs: binstream instance
     @is_addr_ro_variable: callback(addr, size) to test memory candidate
     """
diff --git a/miasm/analysis/disasm_cb.py b/miasm/analysis/disasm_cb.py
index af47603b..76fa738b 100644
--- a/miasm/analysis/disasm_cb.py
+++ b/miasm/analysis/disasm_cb.py
@@ -11,26 +11,26 @@ from miasm.core.locationdb import LocationDB
 from miasm.core.utils import upck32
 
 
-def get_ira(arch, attrib):
+def get_lifter_model_call(arch, attrib):
     arch = arch.name, attrib
     if arch == ("arm", "arm"):
-        from miasm.arch.arm.ira import ir_a_arm_base as ira
+        from miasm.arch.arm.lifter_model_call import ir_a_arm_base as lifter_model_call
     elif arch == ("x86", 32):
-        from miasm.arch.x86.ira import ir_a_x86_32 as ira
+        from miasm.arch.x86.lifter_model_call import ir_a_x86_32 as lifter_model_call
     elif arch == ("x86", 64):
-        from miasm.arch.x86.ira import ir_a_x86_64 as ira
+        from miasm.arch.x86.lifter_model_call import ir_a_x86_64 as lifter_model_call
     else:
         raise ValueError('unknown architecture: %s' % arch.name)
-    return ira
+    return lifter_model_call
 
 
 def arm_guess_subcall(dis_engine, cur_block, offsets_to_dis):
     arch = dis_engine.arch
     loc_db = dis_engine.loc_db
-    ira = get_ira(arch, dis_engine.attrib)
+    lifter_model_call = get_lifter_model_call(arch, dis_engine.attrib)
 
-    ir_arch = ira(loc_db)
-    ircfg = ira.new_ircfg()
+    ir_arch = lifter_model_call(loc_db)
+    ircfg = lifter_model_call.new_ircfg()
     print('###')
     print(cur_block)
     ir_arch.add_asmblock_to_ircfg(cur_block, ircfg)
@@ -66,13 +66,13 @@ def arm_guess_subcall(dis_engine, cur_block, offsets_to_dis):
 def arm_guess_jump_table(dis_engine, cur_block, offsets_to_dis):
     arch = dis_engine.arch
     loc_db = dis_engine.loc_db
-    ira = get_ira(arch, dis_engine.attrib)
+    lifter_model_call = get_lifter_model_call(arch, dis_engine.attrib)
 
     jra = ExprId('jra')
     jrb = ExprId('jrb')
 
-    ir_arch = ira(loc_db)
-    ircfg = ira.new_ircfg()
+    ir_arch = lifter_model_call(loc_db)
+    ircfg = lifter_model_call.new_ircfg()
     ir_arch.add_asmblock_to_ircfg(cur_block, ircfg)
 
     for irblock in viewvalues(ircfg.blocks):
diff --git a/miasm/analysis/dse.py b/miasm/analysis/dse.py
index cfd13821..c90f30ef 100644
--- a/miasm/analysis/dse.py
+++ b/miasm/analysis/dse.py
@@ -167,8 +167,8 @@ class DSEEngine(object):
         self.handler = {} # addr -> callback(DSEEngine instance)
         self.instrumentation = {} # addr -> callback(DSEEngine instance)
         self.addr_to_cacheblocks = {} # addr -> {label -> IRBlock}
-        self.ir_arch = self.machine.ir(loc_db=self.loc_db) # corresponding IR
-        self.ircfg = self.ir_arch.new_ircfg() # corresponding IR
+        self.lifter = self.machine.lifter(loc_db=self.loc_db) # corresponding IR
+        self.ircfg = self.lifter.new_ircfg() # corresponding IR
 
         # Defined after attachment
         self.jitter = None # Jitload (concrete execution)
@@ -186,17 +186,17 @@ class DSEEngine(object):
         # Symbexec engine
         ## Prepare symbexec engines
         self.symb = self.SYMB_ENGINE(self.jitter.cpu, self.jitter.vm,
-                                     self.ir_arch, {})
+                                     self.lifter, {})
         self.symb.enable_emulated_simplifications()
         self.symb_concrete = ESENoVMSideEffects(
             self.jitter.cpu, self.jitter.vm,
-            self.ir_arch, {}
+            self.lifter, {}
         )
 
         ## Update registers value
-        self.symb.symbols[self.ir_arch.IRDst] = ExprInt(
-            getattr(self.jitter.cpu, self.ir_arch.pc.name),
-            self.ir_arch.IRDst.size
+        self.symb.symbols[self.lifter.IRDst] = ExprInt(
+            getattr(self.jitter.cpu, self.lifter.pc.name),
+            self.lifter.IRDst.size
         )
 
         # Activate callback on each instr
@@ -288,7 +288,7 @@ class DSEEngine(object):
 
         for symbol in self.symb.modified_expr:
             # Do not consider PC
-            if symbol in [self.ir_arch.pc, self.ir_arch.IRDst]:
+            if symbol in [self.lifter.pc, self.lifter.IRDst]:
                 continue
 
             # Consider only concrete values
@@ -324,7 +324,7 @@ class DSEEngine(object):
         # Call callbacks associated to the current address
         cur_addr = self.jitter.pc
         if isinstance(cur_addr, LocKey):
-            lbl = self.ir_arch.loc_db.loc_key_to_label(cur_addr)
+            lbl = self.lifter.loc_db.loc_key_to_label(cur_addr)
             cur_addr = lbl.offset
 
         if cur_addr in self.handler:
@@ -335,7 +335,7 @@ class DSEEngine(object):
             self.instrumentation[cur_addr](self)
 
         # Handle current address
-        self.handle(ExprInt(cur_addr, self.ir_arch.IRDst.size))
+        self.handle(ExprInt(cur_addr, self.lifter.IRDst.size))
 
         # Avoid memory issue in ExpressionSimplifier
         if len(self.symb.expr_simp.cache) > 100000:
@@ -352,7 +352,7 @@ class DSEEngine(object):
 
             ## Update current state
             asm_block = self.mdis.dis_block(cur_addr)
-            self.ir_arch.add_asmblock_to_ircfg(asm_block, self.ircfg)
+            self.lifter.add_asmblock_to_ircfg(asm_block, self.ircfg)
             self.addr_to_cacheblocks[cur_addr] = dict(self.ircfg.blocks)
 
         # Emulate the current instruction
@@ -379,7 +379,7 @@ class DSEEngine(object):
                 self.symb.run_block_at(self.ircfg, cur_addr)
 
                 if not (isinstance(next_addr_concrete, ExprLoc) and
-                        self.ir_arch.loc_db.get_location_offset(
+                        self.lifter.loc_db.get_location_offset(
                             next_addr_concrete.loc_key
                         ) is None):
                     # Not a lbl_gen, exit
@@ -400,7 +400,7 @@ class DSEEngine(object):
         This version use the regs associated to the attrib (!= cpu.get_gpreg())
         """
         out = {}
-        regs = self.ir_arch.arch.regs.attrib_to_regs[self.ir_arch.attrib]
+        regs = self.lifter.arch.regs.attrib_to_regs[self.lifter.attrib]
         for reg in regs:
             if hasattr(self.jitter.cpu, reg.name):
                 out[reg.name] = getattr(self.jitter.cpu, reg.name)
@@ -432,7 +432,7 @@ class DSEEngine(object):
                 )
 
         # Restore registers
-        self.jitter.pc = snapshot["regs"][self.ir_arch.pc.name]
+        self.jitter.pc = snapshot["regs"][self.lifter.pc.name]
         for reg, value in viewitems(snapshot["regs"]):
             setattr(self.jitter.cpu, reg, value)
 
@@ -460,7 +460,7 @@ class DSEEngine(object):
             # not present
             symbexec.symbols.symbols_mem.base_to_memarray.clear()
         if cpu:
-            regs = self.ir_arch.arch.regs.attrib_to_regs[self.ir_arch.attrib]
+            regs = self.lifter.arch.regs.attrib_to_regs[self.lifter.attrib]
             for reg in regs:
                 if hasattr(self.jitter.cpu, reg.name):
                     value = ExprInt(getattr(self.jitter.cpu, reg.name),
@@ -638,17 +638,17 @@ class DSEPathConstraint(DSEEngine):
             self.cur_solver.add(self.z3_trans.from_expr(cons))
 
     def handle(self, cur_addr):
-        cur_addr = canonize_to_exprloc(self.ir_arch.loc_db, cur_addr)
-        symb_pc = self.eval_expr(self.ir_arch.IRDst)
+        cur_addr = canonize_to_exprloc(self.lifter.loc_db, cur_addr)
+        symb_pc = self.eval_expr(self.lifter.IRDst)
         possibilities = possible_values(symb_pc)
         cur_path_constraint = set() # path_constraint for the concrete path
         if len(possibilities) == 1:
             dst = next(iter(possibilities)).value
-            dst = canonize_to_exprloc(self.ir_arch.loc_db, dst)
+            dst = canonize_to_exprloc(self.lifter.loc_db, dst)
             assert dst == cur_addr
         else:
             for possibility in possibilities:
-                target_addr = canonize_to_exprloc(self.ir_arch.loc_db, possibility.value)
+                target_addr = canonize_to_exprloc(self.lifter.loc_db, possibility.value)
                 path_constraint = set() # Set of ExprAssign for the possible path
 
                 # Get constraint associated to the possible path
@@ -682,7 +682,7 @@ class DSEPathConstraint(DSEEngine):
                 for start, stop in memory_to_add:
                     for address in range(start, stop + 1):
                         expr_mem = ExprMem(ExprInt(address,
-                                                   self.ir_arch.pc.size),
+                                                   self.lifter.pc.size),
                                            8)
                         value = self.eval_expr(expr_mem)
                         if not value.is_int():
diff --git a/miasm/analysis/machine.py b/miasm/analysis/machine.py
index ba076d8c..f9b26106 100644
--- a/miasm/analysis/machine.py
+++ b/miasm/analysis/machine.py
@@ -6,7 +6,7 @@ class Machine(object):
 
     __dis_engine = None   # Disassembly engine
     __mn = None           # Machine instance
-    __ira = None          # IR analyser
+    __lifter_model_call = None          # IR analyser
     __jitter = None       # Jit engine
     __gdbserver = None    # GdbServer handler
 
@@ -19,7 +19,7 @@ class Machine(object):
 
         dis_engine = None
         mn = None
-        ira = None
+        lifter_model_call = None
         ir = None
         jitter = None
         gdbserver = None
@@ -38,7 +38,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_arm
-            from miasm.arch.arm.ira import ir_a_arml as ira
+            from miasm.arch.arm.lifter_model_call import ir_a_arml as lifter_model_call
             from miasm.arch.arm.sem import ir_arml as ir
         elif machine_name == "armb":
             from miasm.arch.arm.disasm import dis_armb as dis_engine
@@ -49,7 +49,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_arm
-            from miasm.arch.arm.ira import ir_a_armb as ira
+            from miasm.arch.arm.lifter_model_call import ir_a_armb as lifter_model_call
             from miasm.arch.arm.sem import ir_armb as ir
         elif machine_name == "aarch64l":
             from miasm.arch.aarch64.disasm import dis_aarch64l as dis_engine
@@ -60,7 +60,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_aarch64
-            from miasm.arch.aarch64.ira import ir_a_aarch64l as ira
+            from miasm.arch.aarch64.lifter_model_call import ir_a_aarch64l as lifter_model_call
             from miasm.arch.aarch64.sem import ir_aarch64l as ir
         elif machine_name == "aarch64b":
             from miasm.arch.aarch64.disasm import dis_aarch64b as dis_engine
@@ -71,13 +71,13 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_aarch64
-            from miasm.arch.aarch64.ira import ir_a_aarch64b as ira
+            from miasm.arch.aarch64.lifter_model_call import ir_a_aarch64b as lifter_model_call
             from miasm.arch.aarch64.sem import ir_aarch64b as ir
         elif machine_name == "armtl":
             from miasm.arch.arm.disasm import dis_armtl as dis_engine
             from miasm.arch.arm import arch
             mn = arch.mn_armt
-            from miasm.arch.arm.ira import ir_a_armtl as ira
+            from miasm.arch.arm.lifter_model_call import ir_a_armtl as lifter_model_call
             from miasm.arch.arm.sem import ir_armtl as ir
             try:
                 from miasm.arch.arm import jit
@@ -88,7 +88,7 @@ class Machine(object):
             from miasm.arch.arm.disasm import dis_armtb as dis_engine
             from miasm.arch.arm import arch
             mn = arch.mn_armt
-            from miasm.arch.arm.ira import ir_a_armtb as ira
+            from miasm.arch.arm.lifter_model_call import ir_a_armtb as lifter_model_call
             from miasm.arch.arm.sem import ir_armtb as ir
         elif machine_name == "sh4":
             from miasm.arch.sh4 import arch
@@ -102,7 +102,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_x86
-            from miasm.arch.x86.ira import ir_a_x86_16 as ira
+            from miasm.arch.x86.lifter_model_call import ir_a_x86_16 as lifter_model_call
             from miasm.arch.x86.sem import ir_x86_16 as ir
         elif machine_name == "x86_32":
             from miasm.arch.x86.disasm import dis_x86_32 as dis_engine
@@ -113,7 +113,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_x86
-            from miasm.arch.x86.ira import ir_a_x86_32 as ira
+            from miasm.arch.x86.lifter_model_call import ir_a_x86_32 as lifter_model_call
             from miasm.arch.x86.sem import ir_x86_32 as ir
             try:
                 from miasm.analysis.gdbserver import GdbServer_x86_32 as gdbserver
@@ -128,7 +128,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_x86
-            from miasm.arch.x86.ira import ir_a_x86_64 as ira
+            from miasm.arch.x86.lifter_model_call import ir_a_x86_64 as lifter_model_call
             from miasm.arch.x86.sem import ir_x86_64 as ir
         elif machine_name == "msp430":
             from miasm.arch.msp430.disasm import dis_msp430 as dis_engine
@@ -139,7 +139,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_msp430
-            from miasm.arch.msp430.ira import ir_a_msp430 as ira
+            from miasm.arch.msp430.lifter_model_call import ir_a_msp430 as lifter_model_call
             from miasm.arch.msp430.sem import ir_msp430 as ir
             try:
                 from miasm.analysis.gdbserver import GdbServer_msp430 as gdbserver
@@ -154,7 +154,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_mips32
-            from miasm.arch.mips32.ira import ir_a_mips32b as ira
+            from miasm.arch.mips32.lifter_model_call import ir_a_mips32b as lifter_model_call
             from miasm.arch.mips32.sem import ir_mips32b as ir
         elif machine_name == "mips32l":
             from miasm.arch.mips32.disasm import dis_mips32l as dis_engine
@@ -165,7 +165,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_mips32
-            from miasm.arch.mips32.ira import ir_a_mips32l as ira
+            from miasm.arch.mips32.lifter_model_call import ir_a_mips32l as lifter_model_call
             from miasm.arch.mips32.sem import ir_mips32l as ir
         elif machine_name == "ppc32b":
             from miasm.arch.ppc.disasm import dis_ppc32b as dis_engine
@@ -176,7 +176,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_ppc
-            from miasm.arch.ppc.ira import ir_a_ppc32b as ira
+            from miasm.arch.ppc.lifter_model_call import ir_a_ppc32b as lifter_model_call
             from miasm.arch.ppc.sem import ir_ppc32b as ir
         elif machine_name == "mepb":
             from miasm.arch.mep.disasm import dis_mepb as dis_engine
@@ -187,7 +187,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_mep
-            from miasm.arch.mep.ira import ir_a_mepb as ira
+            from miasm.arch.mep.lifter_model_call import ir_a_mepb as lifter_model_call
             from miasm.arch.mep.sem import ir_mepb as ir
         elif machine_name == "mepl":
             from miasm.arch.mep.disasm import dis_mepl as dis_engine
@@ -198,7 +198,7 @@ class Machine(object):
             except ImportError:
                 pass
             mn = arch.mn_mep
-            from miasm.arch.mep.ira import ir_a_mepl as ira
+            from miasm.arch.mep.lifter_model_call import ir_a_mepl as lifter_model_call
             from miasm.arch.mep.sem import ir_mepl as ir
         else:
             raise ValueError('Unknown machine: %s' % machine_name)
@@ -210,7 +210,7 @@ class Machine(object):
 
         self.__dis_engine = dis_engine
         self.__mn = mn
-        self.__ira = ira
+        self.__lifter_model_call = lifter_model_call
         self.__jitter = jitter
         self.__gdbserver = gdbserver
         self.__log_jit = log_jit
@@ -228,8 +228,12 @@ class Machine(object):
         return self.__mn
 
     @property
-    def ira(self):
-        return self.__ira
+    def lifter(self):
+        return self.__lifter
+
+    @property
+    def lifter_model_call(self):
+        return self.__lifter_model_call
 
     @property
     def ir(self):
diff --git a/miasm/analysis/simplifier.py b/miasm/analysis/simplifier.py
index 43623476..fd053b26 100644
--- a/miasm/analysis/simplifier.py
+++ b/miasm/analysis/simplifier.py
@@ -46,8 +46,8 @@ class IRCFGSimplifier(object):
     This class applies passes until reaching a fix point
     """
 
-    def __init__(self, ir_arch):
-        self.ir_arch = ir_arch
+    def __init__(self, lifter):
+        self.lifter = lifter
         self.init_passes()
 
     def init_passes(self):
@@ -81,10 +81,10 @@ class IRCFGSimplifierCommon(IRCFGSimplifier):
     - simplify_ircfg
     - do_dead_simp_ircfg
     """
-    def __init__(self, ir_arch, expr_simp=expr_simp):
+    def __init__(self, lifter, expr_simp=expr_simp):
         self.expr_simp = expr_simp
-        super(IRCFGSimplifierCommon, self).__init__(ir_arch)
-        self.deadremoval = DeadRemoval(self.ir_arch)
+        super(IRCFGSimplifierCommon, self).__init__(lifter)
+        self.deadremoval = DeadRemoval(self.lifter)
 
     def init_passes(self):
         self.passes = [
@@ -133,10 +133,10 @@ class IRCFGSimplifierSSA(IRCFGSimplifierCommon):
     - do_dead_simp_ssa
     """
 
-    def __init__(self, ir_arch, expr_simp=expr_simp):
-        super(IRCFGSimplifierSSA, self).__init__(ir_arch, expr_simp)
+    def __init__(self, lifter, expr_simp=expr_simp):
+        super(IRCFGSimplifierSSA, self).__init__(lifter, expr_simp)
 
-        self.ir_arch.ssa_var = {}
+        self.lifter.ssa_var = {}
         self.all_ssa_vars = {}
 
         self.ssa_forbidden_regs = self.get_forbidden_regs()
@@ -144,7 +144,7 @@ class IRCFGSimplifierSSA(IRCFGSimplifierCommon):
         self.propag_expressions = PropagateExpressions()
         self.del_dummy_phi = DelDummyPhi()
 
-        self.deadremoval = DeadRemoval(self.ir_arch, self.all_ssa_vars)
+        self.deadremoval = DeadRemoval(self.lifter, self.all_ssa_vars)
 
     def get_forbidden_regs(self):
         """
@@ -152,9 +152,9 @@ class IRCFGSimplifierSSA(IRCFGSimplifierCommon):
         """
         regs = set(
             [
-                self.ir_arch.pc,
-                self.ir_arch.IRDst,
-                self.ir_arch.arch.regs.exception_flags
+                self.lifter.pc,
+                self.lifter.IRDst,
+                self.lifter.arch.regs.exception_flags
             ]
         )
         return regs
@@ -187,7 +187,7 @@ class IRCFGSimplifierSSA(IRCFGSimplifierCommon):
         ssa.ssa_variable_to_expr.update(self.all_ssa_vars)
         ssa.transform(head)
         self.all_ssa_vars.update(ssa.ssa_variable_to_expr)
-        self.ir_arch.ssa_var.update(ssa.ssa_variable_to_expr)
+        self.lifter.ssa_var.update(ssa.ssa_variable_to_expr)
         return ssa
 
     def ssa_to_unssa(self, ssa, head):
@@ -198,7 +198,7 @@ class IRCFGSimplifierSSA(IRCFGSimplifierCommon):
         @head: Location instance of the graph head
         """
         cfg_liveness = DiGraphLivenessSSA(ssa.graph)
-        cfg_liveness.init_var_info(self.ir_arch)
+        cfg_liveness.init_var_info(self.lifter)
         cfg_liveness.compute_liveness()
 
         UnSSADiGraph(ssa, head, cfg_liveness)
@@ -331,7 +331,7 @@ class IRCFGSimplifierSSA(IRCFGSimplifierCommon):
         ssa = self.ircfg_to_ssa(ircfg, head)
         ssa = self.do_simplify_loop(ssa, head)
         ircfg = self.ssa_to_unssa(ssa, head)
-        ircfg_simplifier = IRCFGSimplifierCommon(self.ir_arch)
+        ircfg_simplifier = IRCFGSimplifierCommon(self.lifter)
         ircfg_simplifier.deadremoval.add_expr_to_original_expr(self.all_ssa_vars)
         ircfg_simplifier.simplify(ircfg, head)
         return ircfg
diff --git a/miasm/arch/aarch64/ira.py b/miasm/arch/aarch64/ira.py
index aded3dd1..13c49943 100644
--- a/miasm/arch/aarch64/ira.py
+++ b/miasm/arch/aarch64/ira.py
@@ -1,17 +1,17 @@
 #-*- coding:utf-8 -*-
 
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 from miasm.arch.aarch64.sem import ir_aarch64l, ir_aarch64b
 
 
-class ir_a_aarch64l_base(ir_aarch64l, ira):
+class ir_a_aarch64l_base(ir_aarch64l, LifterModelCall):
 
     def __init__(self, loc_db):
         ir_aarch64l.__init__(self, loc_db)
         self.ret_reg = self.arch.regs.X0
 
 
-class ir_a_aarch64b_base(ir_aarch64b, ira):
+class ir_a_aarch64b_base(ir_aarch64b, LifterModelCall):
 
     def __init__(self, loc_db):
         ir_aarch64b.__init__(self, loc_db)
diff --git a/miasm/arch/arm/ira.py b/miasm/arch/arm/ira.py
index f2d8d44b..2f47ea37 100644
--- a/miasm/arch/arm/ira.py
+++ b/miasm/arch/arm/ira.py
@@ -1,17 +1,17 @@
 #-*- coding:utf-8 -*-
 
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 from miasm.ir.ir import IRBlock
 from miasm.arch.arm.sem import ir_arml, ir_armtl, ir_armb, ir_armtb, tab_cond
 from miasm.expression.expression import ExprAssign, ExprOp, ExprLoc, ExprCond
 from miasm.ir.ir import AssignBlock
 
-class ir_a_arml_base(ir_arml, ira):
+class ir_a_arml_base(ir_arml, LifterModelCall):
     def __init__(self, loc_db):
         ir_arml.__init__(self, loc_db)
         self.ret_reg = self.arch.regs.R0
 
-class ir_a_armb_base(ir_armb, ira):
+class ir_a_armb_base(ir_armb, LifterModelCall):
     def __init__(self, loc_db):
         ir_armb.__init__(self, loc_db)
         self.ret_reg = self.arch.regs.R0
diff --git a/miasm/arch/mep/ira.py b/miasm/arch/mep/ira.py
index eac4f6e9..e1420168 100644
--- a/miasm/arch/mep/ira.py
+++ b/miasm/arch/mep/ira.py
@@ -2,10 +2,10 @@
 # Guillaume Valadon <guillaume@valadon.net>
 
 from miasm.arch.mep.sem import ir_mepb, ir_mepl
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 
 
-class ir_a_mepb(ir_mepb, ira):
+class ir_a_mepb(ir_mepb, LifterModelCall):
     """MeP high level IR manipulations - Big Endian
 
     Notes:
diff --git a/miasm/arch/mips32/ira.py b/miasm/arch/mips32/ira.py
index e57e3a36..d7c2af17 100644
--- a/miasm/arch/mips32/ira.py
+++ b/miasm/arch/mips32/ira.py
@@ -2,10 +2,10 @@
 
 from miasm.expression.expression import ExprAssign, ExprOp
 from miasm.ir.ir import IRBlock, AssignBlock
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 from miasm.arch.mips32.sem import ir_mips32l, ir_mips32b
 
-class ir_a_mips32l(ir_mips32l, ira):
+class ir_a_mips32l(ir_mips32l, LifterModelCall):
     def __init__(self, loc_db):
         ir_mips32l.__init__(self, loc_db)
         self.ret_reg = self.arch.regs.V0
diff --git a/miasm/arch/msp430/ira.py b/miasm/arch/msp430/ira.py
index 264de12c..a983f2e1 100644
--- a/miasm/arch/msp430/ira.py
+++ b/miasm/arch/msp430/ira.py
@@ -1,11 +1,11 @@
 #-*- coding:utf-8 -*-
 
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 from miasm.arch.msp430.sem import ir_msp430
 from miasm.ir.ir import AssignBlock
 from miasm.expression.expression import *
 
-class ir_a_msp430_base(ir_msp430, ira):
+class ir_a_msp430_base(ir_msp430, LifterModelCall):
 
     def __init__(self, loc_db):
         ir_msp430.__init__(self, loc_db)
diff --git a/miasm/arch/ppc/ira.py b/miasm/arch/ppc/ira.py
index 72bf7d7c..aae6de83 100644
--- a/miasm/arch/ppc/ira.py
+++ b/miasm/arch/ppc/ira.py
@@ -1,10 +1,10 @@
 from miasm.expression.expression import ExprAssign, ExprOp
 from miasm.ir.ir import AssignBlock
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 from miasm.arch.ppc.sem import ir_ppc32b
 
 
-class ir_a_ppc32b(ir_ppc32b, ira):
+class ir_a_ppc32b(ir_ppc32b, LifterModelCall):
 
     def __init__(self, loc_db, *args):
         super(ir_a_ppc32b, self).__init__(loc_db, *args)
diff --git a/miasm/arch/x86/ira.py b/miasm/arch/x86/ira.py
index 1615622b..5022ed6e 100644
--- a/miasm/arch/x86/ira.py
+++ b/miasm/arch/x86/ira.py
@@ -2,11 +2,11 @@
 
 from miasm.expression.expression import ExprAssign, ExprOp
 from miasm.ir.ir import AssignBlock
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 from miasm.arch.x86.sem import ir_x86_16, ir_x86_32, ir_x86_64
 
 
-class ir_a_x86_16(ir_x86_16, ira):
+class ir_a_x86_16(ir_x86_16, LifterModelCall):
 
     def __init__(self, loc_db):
         ir_x86_16.__init__(self, loc_db)
diff --git a/miasm/ir/analysis.py b/miasm/ir/analysis.py
index ada4f281..aee7fab7 100644
--- a/miasm/ir/analysis.py
+++ b/miasm/ir/analysis.py
@@ -14,7 +14,7 @@ log.addHandler(console_handler)
 log.setLevel(logging.WARNING)
 
 
-class ira(Lifter):
+class LifterModelCall(Lifter):
     """IR Analysis
     This class provides higher level manipulations on IR, such as dead
     instruction removals.
@@ -23,7 +23,7 @@ class ira(Lifter):
     `miasm.ir.ir::Lifter` class.
 
     For instance:
-        class ira_x86_16(ir_x86_16, ira)
+        class LifterModelCall_x86_16(ir_x86_16, LifterModelCall)
 
     """
     ret_reg = None
diff --git a/miasm/jitter/llvmconvert.py b/miasm/jitter/llvmconvert.py
index 5aae624b..d2210a4d 100644
--- a/miasm/jitter/llvmconvert.py
+++ b/miasm/jitter/llvmconvert.py
@@ -221,10 +221,10 @@ class LLVMContext_JIT(LLVMContext):
     """Extend LLVMContext_JIT in order to handle memory management and custom
     operations"""
 
-    def __init__(self, library_filenames, ir_arch, name="mod"):
+    def __init__(self, library_filenames, lifter, name="mod"):
         "Init a LLVMContext object, and load the mem management shared library"
         self.library_filenames = library_filenames
-        self.ir_arch = ir_arch
+        self.lifter = lifter
         self.arch_specific()
         self.load_libraries()
         LLVMContext.__init__(self, name)
@@ -256,12 +256,12 @@ class LLVMContext_JIT(LLVMContext):
         self.add_log_functions()
 
     def arch_specific(self):
-        arch = self.ir_arch.arch
+        arch = self.lifter.arch
         if arch.name == "x86":
             self.PC = arch.regs.RIP
-            self.logging_func = "dump_gpregs_%d" % self.ir_arch.attrib
+            self.logging_func = "dump_gpregs_%d" % self.lifter.attrib
         else:
-            self.PC = self.ir_arch.pc
+            self.PC = self.lifter.pc
             self.logging_func = "dump_gpregs"
         if arch.name == "mips32":
             from miasm.arch.mips32.jit import mipsCGen
@@ -774,7 +774,7 @@ class LLVMFunction(object):
             return ret
 
         if expr.is_loc():
-            offset = self.llvm_context.ir_arch.loc_db.get_location_offset(
+            offset = self.llvm_context.lifter.loc_db.get_location_offset(
                 expr.loc_key
             )
             ret = llvm_ir.Constant(LLVMType.IntType(expr.size), offset)
@@ -1365,7 +1365,7 @@ class LLVMFunction(object):
 
         # Get exception flag value
         builder = self.builder
-        m2_exception_flag = self.llvm_context.ir_arch.arch.regs.exception_flags
+        m2_exception_flag = self.llvm_context.lifter.arch.regs.exception_flags
         t_size = LLVMType.IntType(m2_exception_flag.size)
         exceptionflag = self.add_ir(m2_exception_flag)
 
@@ -1411,7 +1411,7 @@ class LLVMFunction(object):
 
     def gen_pre_code(self, instr_attrib):
         if instr_attrib.log_mn:
-            loc_db = self.llvm_context.ir_arch.loc_db
+            loc_db = self.llvm_context.lifter.loc_db
             self.printf(
                 "%.8X %s\n" % (
                     instr_attrib.instr.offset,
@@ -1489,13 +1489,13 @@ class LLVMFunction(object):
         offset = None
         if isinstance(dst, ExprInt):
             offset = int(dst)
-            loc_key = self.llvm_context.ir_arch.loc_db.get_or_create_offset_location(offset)
+            loc_key = self.llvm_context.lifter.loc_db.get_or_create_offset_location(offset)
             dst = ExprLoc(loc_key, dst.size)
 
         if isinstance(dst, ExprLoc):
             loc_key = dst.loc_key
             bbl = self.get_basic_block_by_loc_key(loc_key)
-            offset = self.llvm_context.ir_arch.loc_db.get_location_offset(loc_key)
+            offset = self.llvm_context.lifter.loc_db.get_location_offset(loc_key)
             if bbl is not None:
                 # "local" jump, inside this function
                 if offset is None:
@@ -1557,7 +1557,7 @@ class LLVMFunction(object):
             # Evaluate expressions
             values = {}
             for dst, src in viewitems(assignblk):
-                if dst == self.llvm_context.ir_arch.IRDst:
+                if dst == self.llvm_context.lifter.IRDst:
                     case2dst, case_value = self.expr2cases(src)
                 else:
                     values[dst] = self.add_ir(src)
@@ -1629,7 +1629,7 @@ class LLVMFunction(object):
         Translate an asm_bad_block into a CPU exception
         """
         builder = self.builder
-        m2_exception_flag = self.llvm_context.ir_arch.arch.regs.exception_flags
+        m2_exception_flag = self.llvm_context.lifter.arch.regs.exception_flags
         t_size = LLVMType.IntType(m2_exception_flag.size)
         self.assign(
             self.add_ir(ExprInt(1, 8)),
@@ -1639,7 +1639,7 @@ class LLVMFunction(object):
             t_size(m2_csts.EXCEPT_UNK_MNEMO),
             m2_exception_flag
         )
-        offset = self.llvm_context.ir_arch.loc_db.get_location_offset(
+        offset = self.llvm_context.lifter.loc_db.get_location_offset(
             asmblock.loc_key
         )
         self.set_ret(LLVMType.IntType(64)(offset))
@@ -1689,7 +1689,7 @@ class LLVMFunction(object):
             # Else Block
             builder.position_at_end(else_block)
             PC = self.llvm_context.PC
-            next_label_offset = self.llvm_context.ir_arch.loc_db.get_location_offset(next_label)
+            next_label_offset = self.llvm_context.lifter.loc_db.get_location_offset(next_label)
             to_ret = LLVMType.IntType(PC.size)(next_label_offset)
             self.assign(to_ret, PC)
             self.set_ret(to_ret)
@@ -1726,11 +1726,11 @@ class LLVMFunction(object):
         # Create basic blocks (for label branches)
         entry_bbl, builder = self.entry_bbl, self.builder
         for instr in asmblock.lines:
-            lbl = self.llvm_context.ir_arch.loc_db.get_or_create_offset_location(instr.offset)
+            lbl = self.llvm_context.lifter.loc_db.get_or_create_offset_location(instr.offset)
             self.append_basic_block(lbl)
 
         # TODO: merge duplicate code with CGen
-        codegen = self.llvm_context.cgen_class(self.llvm_context.ir_arch)
+        codegen = self.llvm_context.cgen_class(self.llvm_context.lifter)
         irblocks_list = codegen.block2assignblks(asmblock)
         instr_offsets = [line.offset for line in asmblock.lines]
 
@@ -1744,7 +1744,7 @@ class LLVMFunction(object):
                 )
                 self.local_vars_pointers[element.name] = ptr
             loc_key = codegen.get_block_post_label(asmblock)
-            offset = self.llvm_context.ir_arch.loc_db.get_location_offset(loc_key)
+            offset = self.llvm_context.lifter.loc_db.get_location_offset(loc_key)
             instr_offsets.append(offset)
             self.append_basic_block(loc_key)
 
@@ -1766,8 +1766,8 @@ class LLVMFunction(object):
 
             # Generate the corresponding code
             for index, irblock in enumerate(irblocks):
-                new_irblock = self.llvm_context.ir_arch.irbloc_fix_regs_for_mode(
-                    irblock, self.llvm_context.ir_arch.attrib)
+                new_irblock = self.llvm_context.lifter.irbloc_fix_regs_for_mode(
+                    irblock, self.llvm_context.lifter.attrib)
 
                 # Set the builder at the beginning of the correct bbl
                 self.builder.position_at_end(self.get_basic_block_by_loc_key(new_irblock.loc_key))
@@ -1848,7 +1848,7 @@ class LLVMFunction_IRCompilation(LLVMFunction):
 
     Example of use:
     >>> context = LLVMContext_IRCompilation()
-    >>> context.ir_arch = ir
+    >>> context.lifter = lifter
     >>>
     >>> func = LLVMFunction_IRCompilation(context, name="test")
     >>> func.ret_type = llvm_ir.VoidType()
@@ -1866,7 +1866,7 @@ class LLVMFunction_IRCompilation(LLVMFunction):
         super(LLVMFunction_IRCompilation, self).init_fc()
 
         # Create a global IRDst if not any
-        IRDst = self.llvm_context.ir_arch.IRDst
+        IRDst = self.llvm_context.lifter.IRDst
         if str(IRDst) not in self.mod.globals:
             llvm_ir.GlobalVariable(self.mod, LLVMType.IntType(IRDst.size),
                                    name=str(IRDst))
@@ -1879,7 +1879,7 @@ class LLVMFunction_IRCompilation(LLVMFunction):
 
         if isinstance(dst, Expr):
             if dst.is_int():
-                loc = self.llvm_context.ir_arch.loc_db.getby_offset_create(int(dst))
+                loc = self.llvm_context.lifter.loc_db.getby_offset_create(int(dst))
                 dst = ExprLoc(loc, dst.size)
             assert dst.is_loc()
             bbl = self.get_basic_block_by_loc_key(dst.loc_key)
diff --git a/test/analysis/data_flow.py b/test/analysis/data_flow.py
index 840bf9ce..6a3c2ce7 100644
--- a/test/analysis/data_flow.py
+++ b/test/analysis/data_flow.py
@@ -6,7 +6,7 @@ from future.utils import viewitems
 from miasm.expression.expression import ExprId, ExprInt, ExprAssign, ExprMem
 from miasm.core.locationdb import LocationDB
 from miasm.analysis.data_flow import DeadRemoval, ReachingDefinitions, DiGraphDefUse
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 from miasm.ir.ir import IRBlock, AssignBlock
 
 loc_db = LocationDB()
@@ -68,99 +68,99 @@ class Arch(object):
     def getsp(self, _):
         return sp
 
-class IRATest(ira):
+class LifterTest(LifterModelCall):
 
-    """Fake IRA class for tests"""
+    """Fake Lifter class for tests"""
 
     def __init__(self, loc_db):
         arch = Arch()
-        super(IRATest, self).__init__(arch, 32, loc_db)
+        super(LifterTest, self).__init__(arch, 32, loc_db)
         self.IRDst = IRDst
         self.ret_reg = r
 
     def get_out_regs(self, _):
         return set([self.ret_reg, self.sp])
 
-IRA = IRATest(loc_db)
-deadrm = DeadRemoval(IRA)
+Lifter = LifterTest(loc_db)
+deadrm = DeadRemoval(Lifter)
 
 # graph 1 : Simple graph with dead and alive variables
 
-G1_IRA = IRA.new_ircfg()
+G1_cfg = Lifter.new_ircfg()
 
 G1_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)], [ExprAssign(b, CST2)]])
 G1_IRB1 = gen_irblock(LBL1, [[ExprAssign(a, b)]])
 G1_IRB2 = gen_irblock(LBL2, [[ExprAssign(r, a)]])
 
 for irb in [G1_IRB0, G1_IRB1, G1_IRB2]:
-    G1_IRA.add_irblock(irb)
+    G1_cfg.add_irblock(irb)
 
-G1_IRA.add_uniq_edge(G1_IRB0.loc_key, G1_IRB1.loc_key)
-G1_IRA.add_uniq_edge(G1_IRB1.loc_key, G1_IRB2.loc_key)
+G1_cfg.add_uniq_edge(G1_IRB0.loc_key, G1_IRB1.loc_key)
+G1_cfg.add_uniq_edge(G1_IRB1.loc_key, G1_IRB2.loc_key)
 
 # Expected output for graph 1
-G1_EXP_IRA = IRA.new_ircfg()
+G1_EXP_cfg = Lifter.new_ircfg()
 
 G1_EXP_IRB0 = gen_irblock(LBL0, [[], [ExprAssign(b, CST2)]])
 G1_EXP_IRB1 = gen_irblock(LBL1, [[ExprAssign(a, b)]])
 G1_EXP_IRB2 = gen_irblock(LBL2, [[ExprAssign(r, a)]])
 
 for irb in [G1_EXP_IRB0, G1_EXP_IRB1, G1_EXP_IRB2]:
-    G1_EXP_IRA.add_irblock(irb)
+    G1_EXP_cfg.add_irblock(irb)
 
 # graph 2 : Natural loop with dead variable
 
-G2_IRA = IRA.new_ircfg()
+G2_cfg = Lifter.new_ircfg()
 
 G2_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)], [ExprAssign(r, CST1)]])
 G2_IRB1 = gen_irblock(LBL1, [[ExprAssign(a, a+CST1)]])
 G2_IRB2 = gen_irblock(LBL2, [[ExprAssign(a, r)]])
 
 for irb in [G2_IRB0, G2_IRB1, G2_IRB2]:
-    G2_IRA.add_irblock(irb)
+    G2_cfg.add_irblock(irb)
 
-G2_IRA.add_uniq_edge(G2_IRB0.loc_key, G2_IRB1.loc_key)
-G2_IRA.add_uniq_edge(G2_IRB1.loc_key, G2_IRB2.loc_key)
-G2_IRA.add_uniq_edge(G2_IRB1.loc_key, G2_IRB1.loc_key)
+G2_cfg.add_uniq_edge(G2_IRB0.loc_key, G2_IRB1.loc_key)
+G2_cfg.add_uniq_edge(G2_IRB1.loc_key, G2_IRB2.loc_key)
+G2_cfg.add_uniq_edge(G2_IRB1.loc_key, G2_IRB1.loc_key)
 
 # Expected output for graph 2
-G2_EXP_IRA = IRA.new_ircfg()
+G2_EXP_cfg = Lifter.new_ircfg()
 
 G2_EXP_IRB0 = gen_irblock(LBL0, [[], [ExprAssign(r, CST1)]])
 G2_EXP_IRB1 = gen_irblock(LBL1, [[]])
 G2_EXP_IRB2 = gen_irblock(LBL2, [[]])
 
 for irb in [G2_EXP_IRB0, G2_EXP_IRB1, G2_EXP_IRB2]:
-    G2_EXP_IRA.add_irblock(irb)
+    G2_EXP_cfg.add_irblock(irb)
 
 # graph 3 : Natural loop with alive variables
 
-G3_IRA = IRA.new_ircfg()
+G3_cfg = Lifter.new_ircfg()
 
 G3_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)]])
 G3_IRB1 = gen_irblock(LBL1, [[ExprAssign(a, a+CST1)]])
 G3_IRB2 = gen_irblock(LBL2, [[ExprAssign(r, a)]])
 
 for irb in [G3_IRB0, G3_IRB1, G3_IRB2]:
-    G3_IRA.add_irblock(irb)
+    G3_cfg.add_irblock(irb)
 
-G3_IRA.add_uniq_edge(G3_IRB0.loc_key, G3_IRB1.loc_key)
-G3_IRA.add_uniq_edge(G3_IRB1.loc_key, G3_IRB2.loc_key)
-G3_IRA.add_uniq_edge(G3_IRB1.loc_key, G3_IRB1.loc_key)
+G3_cfg.add_uniq_edge(G3_IRB0.loc_key, G3_IRB1.loc_key)
+G3_cfg.add_uniq_edge(G3_IRB1.loc_key, G3_IRB2.loc_key)
+G3_cfg.add_uniq_edge(G3_IRB1.loc_key, G3_IRB1.loc_key)
 
 # Expected output for graph 3
-G3_EXP_IRA = IRA.new_ircfg()
+G3_EXP_cfg = Lifter.new_ircfg()
 
 G3_EXP_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)]])
 G3_EXP_IRB1 = gen_irblock(LBL1, [[ExprAssign(a, a+CST1)]])
 G3_EXP_IRB2 = gen_irblock(LBL2, [[ExprAssign(r, a)]])
 
 for irb in [G3_EXP_IRB0, G3_EXP_IRB1, G3_EXP_IRB2]:
-    G3_EXP_IRA.add_irblock(irb)
+    G3_EXP_cfg.add_irblock(irb)
 
 # graph 4 : If/else with dead variables
 
-G4_IRA = IRA.new_ircfg()
+G4_cfg = Lifter.new_ircfg()
 
 G4_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)]])
 G4_IRB1 = gen_irblock(LBL1, [[ExprAssign(a, a+CST1)]])
@@ -168,15 +168,15 @@ G4_IRB2 = gen_irblock(LBL2, [[ExprAssign(a, a+CST2)]])
 G4_IRB3 = gen_irblock(LBL3, [[ExprAssign(a, CST3)], [ExprAssign(r, a)]])
 
 for irb in [G4_IRB0, G4_IRB1, G4_IRB2, G4_IRB3]:
-    G4_IRA.add_irblock(irb)
+    G4_cfg.add_irblock(irb)
 
-G4_IRA.add_uniq_edge(G4_IRB0.loc_key, G4_IRB1.loc_key)
-G4_IRA.add_uniq_edge(G4_IRB0.loc_key, G4_IRB2.loc_key)
-G4_IRA.add_uniq_edge(G4_IRB1.loc_key, G4_IRB3.loc_key)
-G4_IRA.add_uniq_edge(G4_IRB2.loc_key, G4_IRB3.loc_key)
+G4_cfg.add_uniq_edge(G4_IRB0.loc_key, G4_IRB1.loc_key)
+G4_cfg.add_uniq_edge(G4_IRB0.loc_key, G4_IRB2.loc_key)
+G4_cfg.add_uniq_edge(G4_IRB1.loc_key, G4_IRB3.loc_key)
+G4_cfg.add_uniq_edge(G4_IRB2.loc_key, G4_IRB3.loc_key)
 
 # Expected output for graph 4
-G4_EXP_IRA = IRA.new_ircfg()
+G4_EXP_cfg = Lifter.new_ircfg()
 
 G4_EXP_IRB0 = gen_irblock(LBL0, [[]])
 G4_EXP_IRB1 = gen_irblock(LBL1, [[]])
@@ -184,11 +184,11 @@ G4_EXP_IRB2 = gen_irblock(LBL2, [[]])
 G4_EXP_IRB3 = gen_irblock(LBL3, [[ExprAssign(a, CST3)], [ExprAssign(r, a)]])
 
 for irb in [G4_EXP_IRB0, G4_EXP_IRB1, G4_EXP_IRB2, G4_EXP_IRB3]:
-    G4_EXP_IRA.add_irblock(irb)
+    G4_EXP_cfg.add_irblock(irb)
 
 # graph 5 : Loop and If/else with dead variables
 
-G5_IRA = IRA.new_ircfg()
+G5_cfg = Lifter.new_ircfg()
 
 G5_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)]])
 G5_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, CST2)]])
@@ -198,18 +198,18 @@ G5_IRB4 = gen_irblock(LBL4, [[ExprAssign(a, a+CST1)]])
 G5_IRB5 = gen_irblock(LBL5, [[ExprAssign(a, r)]])
 
 for irb in [G5_IRB0, G5_IRB1, G5_IRB2, G5_IRB3, G5_IRB4, G5_IRB5]:
-    G5_IRA.add_irblock(irb)
+    G5_cfg.add_irblock(irb)
 
-G5_IRA.add_uniq_edge(G5_IRB0.loc_key, G5_IRB1.loc_key)
-G5_IRA.add_uniq_edge(G5_IRB1.loc_key, G5_IRB2.loc_key)
-G5_IRA.add_uniq_edge(G5_IRB1.loc_key, G5_IRB3.loc_key)
-G5_IRA.add_uniq_edge(G5_IRB2.loc_key, G5_IRB4.loc_key)
-G5_IRA.add_uniq_edge(G5_IRB3.loc_key, G5_IRB4.loc_key)
-G5_IRA.add_uniq_edge(G5_IRB4.loc_key, G5_IRB5.loc_key)
-G5_IRA.add_uniq_edge(G5_IRB4.loc_key, G5_IRB1.loc_key)
+G5_cfg.add_uniq_edge(G5_IRB0.loc_key, G5_IRB1.loc_key)
+G5_cfg.add_uniq_edge(G5_IRB1.loc_key, G5_IRB2.loc_key)
+G5_cfg.add_uniq_edge(G5_IRB1.loc_key, G5_IRB3.loc_key)
+G5_cfg.add_uniq_edge(G5_IRB2.loc_key, G5_IRB4.loc_key)
+G5_cfg.add_uniq_edge(G5_IRB3.loc_key, G5_IRB4.loc_key)
+G5_cfg.add_uniq_edge(G5_IRB4.loc_key, G5_IRB5.loc_key)
+G5_cfg.add_uniq_edge(G5_IRB4.loc_key, G5_IRB1.loc_key)
 
 # Expected output for graph 5
-G5_EXP_IRA = IRA.new_ircfg()
+G5_EXP_cfg = Lifter.new_ircfg()
 
 G5_EXP_IRB0 = gen_irblock(LBL0, [[]])
 G5_EXP_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, CST2)]])
@@ -220,12 +220,12 @@ G5_EXP_IRB5 = gen_irblock(LBL5, [[]])
 
 for irb in [G5_EXP_IRB0, G5_EXP_IRB1, G5_EXP_IRB2,
             G5_EXP_IRB3, G5_EXP_IRB4, G5_EXP_IRB5]:
-    G5_EXP_IRA.add_irblock(irb)
+    G5_EXP_cfg.add_irblock(irb)
 
 # graph 6 : Natural loop with dead variables symmetric assignment
 # (a = b <-> b = a )
 
-G6_IRA = IRA.new_ircfg()
+G6_cfg = Lifter.new_ircfg()
 
 G6_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)]])
 G6_IRB1 = gen_irblock(LBL1, [[ExprAssign(b, a)]])
@@ -233,15 +233,15 @@ G6_IRB2 = gen_irblock(LBL2, [[ExprAssign(a, b)]])
 G6_IRB3 = gen_irblock(LBL3, [[ExprAssign(r, CST2)]])
 
 for irb in [G6_IRB0, G6_IRB1, G6_IRB2, G6_IRB3]:
-    G6_IRA.add_irblock(irb)
+    G6_cfg.add_irblock(irb)
 
-G6_IRA.add_uniq_edge(G6_IRB0.loc_key, G6_IRB1.loc_key)
-G6_IRA.add_uniq_edge(G6_IRB1.loc_key, G6_IRB2.loc_key)
-G6_IRA.add_uniq_edge(G6_IRB2.loc_key, G6_IRB1.loc_key)
-G6_IRA.add_uniq_edge(G6_IRB2.loc_key, G6_IRB3.loc_key)
+G6_cfg.add_uniq_edge(G6_IRB0.loc_key, G6_IRB1.loc_key)
+G6_cfg.add_uniq_edge(G6_IRB1.loc_key, G6_IRB2.loc_key)
+G6_cfg.add_uniq_edge(G6_IRB2.loc_key, G6_IRB1.loc_key)
+G6_cfg.add_uniq_edge(G6_IRB2.loc_key, G6_IRB3.loc_key)
 
 # Expected output for graph 6
-G6_EXP_IRA = IRA.new_ircfg()
+G6_EXP_cfg = Lifter.new_ircfg()
 
 G6_EXP_IRB0 = gen_irblock(LBL0, [[]])
 G6_EXP_IRB1 = gen_irblock(LBL1, [[]])
@@ -249,11 +249,11 @@ G6_EXP_IRB2 = gen_irblock(LBL2, [[]])
 G6_EXP_IRB3 = gen_irblock(LBL3, [[ExprAssign(r, CST2)]])
 
 for irb in [G6_EXP_IRB0, G6_EXP_IRB1, G6_EXP_IRB2, G6_EXP_IRB3]:
-    G6_EXP_IRA.add_irblock(irb)
+    G6_EXP_cfg.add_irblock(irb)
 
 # graph 7 : Double entry loop with dead variables
 
-G7_IRA = IRA.new_ircfg()
+G7_cfg = Lifter.new_ircfg()
 
 G7_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)], [ExprAssign(r, CST1)]])
 G7_IRB1 = gen_irblock(LBL1, [[ExprAssign(a, a+CST1)]])
@@ -261,17 +261,17 @@ G7_IRB2 = gen_irblock(LBL2, [[ExprAssign(a, a+CST2)]])
 G7_IRB3 = gen_irblock(LBL3, [[ExprAssign(a, r)]])
 
 for irb in [G7_IRB0, G7_IRB1, G7_IRB2, G7_IRB3]:
-    G7_IRA.add_irblock(irb)
+    G7_cfg.add_irblock(irb)
 
-G7_IRA.add_uniq_edge(G7_IRB0.loc_key, G7_IRB1.loc_key)
-G7_IRA.add_uniq_edge(G7_IRB1.loc_key, G7_IRB2.loc_key)
-G7_IRA.add_uniq_edge(G7_IRB2.loc_key, G7_IRB1.loc_key)
-G7_IRA.add_uniq_edge(G7_IRB2.loc_key, G7_IRB3.loc_key)
-G7_IRA.add_uniq_edge(G7_IRB0.loc_key, G7_IRB2.loc_key)
+G7_cfg.add_uniq_edge(G7_IRB0.loc_key, G7_IRB1.loc_key)
+G7_cfg.add_uniq_edge(G7_IRB1.loc_key, G7_IRB2.loc_key)
+G7_cfg.add_uniq_edge(G7_IRB2.loc_key, G7_IRB1.loc_key)
+G7_cfg.add_uniq_edge(G7_IRB2.loc_key, G7_IRB3.loc_key)
+G7_cfg.add_uniq_edge(G7_IRB0.loc_key, G7_IRB2.loc_key)
 
 
 # Expected output for graph 7
-G7_EXP_IRA = IRA.new_ircfg()
+G7_EXP_cfg = Lifter.new_ircfg()
 
 G7_EXP_IRB0 = gen_irblock(LBL0, [[], [ExprAssign(r, CST1)]])
 G7_EXP_IRB1 = gen_irblock(LBL1, [[]])
@@ -279,11 +279,11 @@ G7_EXP_IRB2 = gen_irblock(LBL2, [[]])
 G7_EXP_IRB3 = gen_irblock(LBL3, [[]])
 
 for irb in [G7_EXP_IRB0, G7_EXP_IRB1, G7_EXP_IRB2, G7_EXP_IRB3]:
-    G7_EXP_IRA.add_irblock(irb)
+    G7_EXP_cfg.add_irblock(irb)
 
 # graph 8 : Nested loops with dead variables
 
-G8_IRA = IRA.new_ircfg()
+G8_cfg = Lifter.new_ircfg()
 
 G8_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)], [ExprAssign(b, CST1)]])
 G8_IRB1 = gen_irblock(LBL1, [[ExprAssign(a, a+CST1)]])
@@ -292,18 +292,18 @@ G8_IRB3 = gen_irblock(LBL3, [[ExprAssign(a, b)]])
 
 
 for irb in [G8_IRB0, G8_IRB1, G8_IRB2, G8_IRB3]:
-    G8_IRA.add_irblock(irb)
+    G8_cfg.add_irblock(irb)
 
-G8_IRA.add_uniq_edge(G8_IRB0.loc_key, G8_IRB1.loc_key)
-G8_IRA.add_uniq_edge(G8_IRB1.loc_key, G8_IRB2.loc_key)
-G8_IRA.add_uniq_edge(G8_IRB2.loc_key, G8_IRB1.loc_key)
-G8_IRA.add_uniq_edge(G8_IRB2.loc_key, G8_IRB3.loc_key)
-G8_IRA.add_uniq_edge(G8_IRB3.loc_key, G8_IRB2.loc_key)
+G8_cfg.add_uniq_edge(G8_IRB0.loc_key, G8_IRB1.loc_key)
+G8_cfg.add_uniq_edge(G8_IRB1.loc_key, G8_IRB2.loc_key)
+G8_cfg.add_uniq_edge(G8_IRB2.loc_key, G8_IRB1.loc_key)
+G8_cfg.add_uniq_edge(G8_IRB2.loc_key, G8_IRB3.loc_key)
+G8_cfg.add_uniq_edge(G8_IRB3.loc_key, G8_IRB2.loc_key)
 
 
 # Expected output for graph 8
 
-G8_EXP_IRA = IRA.new_ircfg()
+G8_EXP_cfg = Lifter.new_ircfg()
 
 G8_EXP_IRB0 = gen_irblock(LBL0, [[], []])
 G8_EXP_IRB1 = gen_irblock(LBL1, [[]])
@@ -311,11 +311,11 @@ G8_EXP_IRB2 = gen_irblock(LBL2, [[]])
 G8_EXP_IRB3 = gen_irblock(LBL3, [[]])
 
 for irb in [G8_EXP_IRB0, G8_EXP_IRB1, G8_EXP_IRB2, G8_EXP_IRB3]:
-    G8_EXP_IRA.add_irblock(irb)
+    G8_EXP_cfg.add_irblock(irb)
 
 # graph 9 : Miultiple-exits loops with dead variables
 
-G9_IRA = IRA.new_ircfg()
+G9_cfg = Lifter.new_ircfg()
 
 G9_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)], [ExprAssign(b, CST1)]])
 G9_IRB1 = gen_irblock(LBL1, [[ExprAssign(a, a+CST1)], [ExprAssign(b, b+CST1)]])
@@ -324,21 +324,21 @@ G9_IRB3 = gen_irblock(LBL3, [[ExprAssign(a, b)]])
 G9_IRB4 = gen_irblock(LBL4, [[ExprAssign(r, a)], [ExprAssign(r, b)]])
 
 for irb in [G9_IRB0, G9_IRB1, G9_IRB2, G9_IRB3, G9_IRB4]:
-    G9_IRA.add_irblock(irb)
+    G9_cfg.add_irblock(irb)
 
-G9_IRA.add_uniq_edge(G9_IRB0.loc_key, G9_IRB4.loc_key)
-G9_IRA.add_uniq_edge(G9_IRB0.loc_key, G9_IRB1.loc_key)
-G9_IRA.add_uniq_edge(G9_IRB1.loc_key, G9_IRB0.loc_key)
-G9_IRA.add_uniq_edge(G9_IRB1.loc_key, G9_IRB4.loc_key)
-G9_IRA.add_uniq_edge(G9_IRB1.loc_key, G9_IRB2.loc_key)
-G9_IRA.add_uniq_edge(G9_IRB2.loc_key, G9_IRB0.loc_key)
-G9_IRA.add_uniq_edge(G9_IRB2.loc_key, G9_IRB3.loc_key)
-G9_IRA.add_uniq_edge(G9_IRB3.loc_key, G9_IRB4.loc_key)
+G9_cfg.add_uniq_edge(G9_IRB0.loc_key, G9_IRB4.loc_key)
+G9_cfg.add_uniq_edge(G9_IRB0.loc_key, G9_IRB1.loc_key)
+G9_cfg.add_uniq_edge(G9_IRB1.loc_key, G9_IRB0.loc_key)
+G9_cfg.add_uniq_edge(G9_IRB1.loc_key, G9_IRB4.loc_key)
+G9_cfg.add_uniq_edge(G9_IRB1.loc_key, G9_IRB2.loc_key)
+G9_cfg.add_uniq_edge(G9_IRB2.loc_key, G9_IRB0.loc_key)
+G9_cfg.add_uniq_edge(G9_IRB2.loc_key, G9_IRB3.loc_key)
+G9_cfg.add_uniq_edge(G9_IRB3.loc_key, G9_IRB4.loc_key)
 
 
 # Expected output for graph 9
 
-G9_EXP_IRA = IRA.new_ircfg()
+G9_EXP_cfg = Lifter.new_ircfg()
 
 G9_EXP_IRB0 = gen_irblock(LBL0, [[], [ExprAssign(b, CST1)]])
 G9_EXP_IRB1 = gen_irblock(LBL1, [[], [ExprAssign(b, b+CST1)]])
@@ -347,12 +347,12 @@ G9_EXP_IRB3 = gen_irblock(LBL3, [[]])
 G9_EXP_IRB4 = gen_irblock(LBL4, [[], [ExprAssign(r, b)]])
 
 for irb in [G9_EXP_IRB0, G9_EXP_IRB1, G9_EXP_IRB2, G9_EXP_IRB3, G9_EXP_IRB4]:
-    G9_EXP_IRA.add_irblock(irb)
+    G9_EXP_cfg.add_irblock(irb)
 
 # graph 10 : Natural loop with alive variables symmetric assignment
 # (a = b <-> b = a )
 
-G10_IRA = IRA.new_ircfg()
+G10_cfg = Lifter.new_ircfg()
 
 G10_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)]])
 G10_IRB1 = gen_irblock(LBL1, [[ExprAssign(b, a)]])
@@ -360,16 +360,16 @@ G10_IRB2 = gen_irblock(LBL2, [[ExprAssign(a, b)]])
 G10_IRB3 = gen_irblock(LBL3, [[ExprAssign(r, CST1)]])
 
 for irb in [G10_IRB0, G10_IRB1, G10_IRB2, G10_IRB3]:
-    G10_IRA.add_irblock(irb)
+    G10_cfg.add_irblock(irb)
 
 
-G10_IRA.add_uniq_edge(G10_IRB0.loc_key, G10_IRB1.loc_key)
-G10_IRA.add_uniq_edge(G10_IRB1.loc_key, G10_IRB2.loc_key)
-G10_IRA.add_uniq_edge(G10_IRB2.loc_key, G10_IRB1.loc_key)
-G10_IRA.add_uniq_edge(G10_IRB2.loc_key, G10_IRB3.loc_key)
+G10_cfg.add_uniq_edge(G10_IRB0.loc_key, G10_IRB1.loc_key)
+G10_cfg.add_uniq_edge(G10_IRB1.loc_key, G10_IRB2.loc_key)
+G10_cfg.add_uniq_edge(G10_IRB2.loc_key, G10_IRB1.loc_key)
+G10_cfg.add_uniq_edge(G10_IRB2.loc_key, G10_IRB3.loc_key)
 
 # Expected output for graph 10
-G10_EXP_IRA = IRA.new_ircfg()
+G10_EXP_cfg = Lifter.new_ircfg()
 
 G10_EXP_IRB0 = gen_irblock(LBL0, [[]])
 G10_EXP_IRB1 = gen_irblock(LBL1, [[]])
@@ -377,11 +377,11 @@ G10_EXP_IRB2 = gen_irblock(LBL2, [[]])
 G10_EXP_IRB3 = gen_irblock(LBL3, [[ExprAssign(r, CST1)]])
 
 for irb in [G10_EXP_IRB0, G10_EXP_IRB1, G10_EXP_IRB2, G10_EXP_IRB3]:
-    G10_EXP_IRA.add_irblock(irb)
+    G10_EXP_cfg.add_irblock(irb)
 
 # graph 11 : If/Else conditions with alive variables
 
-G11_IRA = IRA.new_ircfg()
+G11_cfg = Lifter.new_ircfg()
 
 G11_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, b)]])
 G11_IRB1 = gen_irblock(LBL1, [[ExprAssign(b, a)]])
@@ -391,17 +391,17 @@ G11_IRB4 = gen_irblock(LBL4, [[ExprAssign(b, b+CST1)]])
 
 
 for irb in [G11_IRB0, G11_IRB1, G11_IRB2]:
-    G11_IRA.add_irblock(irb)
+    G11_cfg.add_irblock(irb)
 
-G11_IRA.add_uniq_edge(G11_IRB0.loc_key, G11_IRB1.loc_key)
-#G11_IRA.add_uniq_edge(G11_IRB3.loc_key, G11_IRB1.loc_key)
-G11_IRA.add_uniq_edge(G11_IRB1.loc_key, G11_IRB0.loc_key)
-#G11_IRA.add_uniq_edge(G11_IRB4.loc_key, G11_IRB0.loc_key)
-G11_IRA.add_uniq_edge(G11_IRB1.loc_key, G11_IRB2.loc_key)
+G11_cfg.add_uniq_edge(G11_IRB0.loc_key, G11_IRB1.loc_key)
+#G11_cfg.add_uniq_edge(G11_IRB3.loc_key, G11_IRB1.loc_key)
+G11_cfg.add_uniq_edge(G11_IRB1.loc_key, G11_IRB0.loc_key)
+#G11_cfg.add_uniq_edge(G11_IRB4.loc_key, G11_IRB0.loc_key)
+G11_cfg.add_uniq_edge(G11_IRB1.loc_key, G11_IRB2.loc_key)
 
 
 # Expected output for graph 11
-G11_EXP_IRA = IRA.new_ircfg()
+G11_EXP_cfg = Lifter.new_ircfg()
 
 G11_EXP_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, b)]])
 G11_EXP_IRB1 = gen_irblock(LBL1, [[ExprAssign(b, a)]])
@@ -411,12 +411,12 @@ G11_EXP_IRB2 = gen_irblock(LBL2, [[ExprAssign(r, a)]])
 
 for irb in [G11_EXP_IRB0, G11_EXP_IRB1,
             G11_EXP_IRB2]:
-    G11_EXP_IRA.add_irblock(irb)
+    G11_EXP_cfg.add_irblock(irb)
 
 # graph 12 : Graph with multiple out points and useless definitions
 # of return register
 
-G12_IRA = IRA.new_ircfg()
+G12_cfg = Lifter.new_ircfg()
 
 G12_IRB0 = gen_irblock(LBL0, [[ExprAssign(r, CST1)], [ExprAssign(a, CST2)]])
 G12_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, CST2)]])
@@ -426,16 +426,16 @@ G12_IRB4 = gen_irblock(LBL4, [[ExprAssign(r, CST2)]])
 G12_IRB5 = gen_irblock(LBL5, [[ExprAssign(r, b)]])
 
 for irb in [G12_IRB0, G12_IRB1, G12_IRB2, G12_IRB3, G12_IRB4, G12_IRB5]:
-    G12_IRA.add_irblock(irb)
+    G12_cfg.add_irblock(irb)
 
-G12_IRA.add_uniq_edge(G12_IRB0.loc_key, G12_IRB1.loc_key)
-G12_IRA.add_uniq_edge(G12_IRB0.loc_key, G12_IRB2.loc_key)
-G12_IRA.add_uniq_edge(G12_IRB2.loc_key, G12_IRB3.loc_key)
-G12_IRA.add_uniq_edge(G12_IRB2.loc_key, G12_IRB4.loc_key)
-G12_IRA.add_uniq_edge(G12_IRB4.loc_key, G12_IRB5.loc_key)
+G12_cfg.add_uniq_edge(G12_IRB0.loc_key, G12_IRB1.loc_key)
+G12_cfg.add_uniq_edge(G12_IRB0.loc_key, G12_IRB2.loc_key)
+G12_cfg.add_uniq_edge(G12_IRB2.loc_key, G12_IRB3.loc_key)
+G12_cfg.add_uniq_edge(G12_IRB2.loc_key, G12_IRB4.loc_key)
+G12_cfg.add_uniq_edge(G12_IRB4.loc_key, G12_IRB5.loc_key)
 
 # Expected output for graph 12
-G12_EXP_IRA = IRA.new_ircfg()
+G12_EXP_cfg = Lifter.new_ircfg()
 
 G12_EXP_IRB0 = gen_irblock(LBL0, [[], []])
 G12_EXP_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, CST2)]])
@@ -448,11 +448,11 @@ G12_EXP_IRB5 = gen_irblock(LBL5, [[ExprAssign(r, b)]])
 for irb in [G12_EXP_IRB0, G12_EXP_IRB1,
             G12_EXP_IRB2, G12_EXP_IRB3,
             G12_EXP_IRB4, G12_EXP_IRB5]:
-    G12_EXP_IRA.add_irblock(irb)
+    G12_EXP_cfg.add_irblock(irb)
 
 # graph 13 : Graph where a leaf has lost its son
 
-G13_IRA = IRA.new_ircfg()
+G13_cfg = Lifter.new_ircfg()
 
 G13_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)], [ExprAssign(b, CST2)]])
 G13_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, b)]])
@@ -462,15 +462,15 @@ G13_IRB3 = gen_irblock(LBL3, [[]]) # lost son
 G13_IRB4 = gen_irblock(LBL4, [[ExprAssign(b, CST2)]])
 
 for irb in [G13_IRB0, G13_IRB1, G13_IRB2, G13_IRB4]:
-    G13_IRA.add_irblock(irb)
+    G13_cfg.add_irblock(irb)
 
-G13_IRA.add_uniq_edge(G13_IRB0.loc_key, G13_IRB1.loc_key)
-G13_IRA.add_uniq_edge(G13_IRB0.loc_key, G13_IRB4.loc_key)
-G13_IRA.add_uniq_edge(G13_IRB2.loc_key, G13_IRB3.loc_key)
-G13_IRA.add_uniq_edge(G13_IRB4.loc_key, G13_IRB2.loc_key)
+G13_cfg.add_uniq_edge(G13_IRB0.loc_key, G13_IRB1.loc_key)
+G13_cfg.add_uniq_edge(G13_IRB0.loc_key, G13_IRB4.loc_key)
+G13_cfg.add_uniq_edge(G13_IRB2.loc_key, G13_IRB3.loc_key)
+G13_cfg.add_uniq_edge(G13_IRB4.loc_key, G13_IRB2.loc_key)
 
 # Expected output for graph 13
-G13_EXP_IRA = IRA.new_ircfg()
+G13_EXP_cfg = Lifter.new_ircfg()
 
 G13_EXP_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)], [ExprAssign(b, CST2)]])
 G13_EXP_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, b)]])
@@ -480,38 +480,38 @@ G13_EXP_IRB3 = gen_irblock(LBL3, [[]])
 G13_EXP_IRB4 = gen_irblock(LBL4, [[ExprAssign(b, CST2)]])
 
 for irb in [G13_EXP_IRB0, G13_EXP_IRB1, G13_EXP_IRB2, G13_EXP_IRB4]:
-    G13_EXP_IRA.add_irblock(irb)
+    G13_EXP_cfg.add_irblock(irb)
 
-#G13_EXP_IRA = G13_IRA
+#G13_EXP_cfg = G13_cfg
 
 # graph 14 : Graph where variable assigned multiple times in a block but still
 # useful in the end
 
-G14_IRA = IRA.new_ircfg()
+G14_cfg = Lifter.new_ircfg()
 
 G14_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)], [ExprAssign(c, a)],
                               [ExprAssign(a, CST2)]])
 G14_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, a+c)]])
 
 for irb in [G14_IRB0, G14_IRB1]:
-    G14_IRA.add_irblock(irb)
+    G14_cfg.add_irblock(irb)
 
-G14_IRA.add_uniq_edge(G14_IRB0.loc_key, G14_IRB1.loc_key)
+G14_cfg.add_uniq_edge(G14_IRB0.loc_key, G14_IRB1.loc_key)
 
 # Expected output for graph 1
-G14_EXP_IRA = IRA.new_ircfg()
+G14_EXP_cfg = Lifter.new_ircfg()
 
 G14_EXP_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1)], [ExprAssign(c, a)],
                                   [ExprAssign(a, CST2)]])
 G14_EXP_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, a+c)]])
 
 for irb in [G14_EXP_IRB0, G14_EXP_IRB1]:
-    G14_EXP_IRA.add_irblock(irb)
+    G14_EXP_cfg.add_irblock(irb)
 
 # graph 15 : Graph where variable assigned multiple and read at the same time,
 # but useless
 
-G15_IRA = IRA.new_ircfg()
+G15_cfg = Lifter.new_ircfg()
 
 G15_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST2)], [ExprAssign(a, CST1),
                                                    ExprAssign(b, a+CST2),
@@ -519,22 +519,22 @@ G15_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST2)], [ExprAssign(a, CST1),
 G15_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, a)]])
 
 for irb in [G15_IRB0, G15_IRB1]:
-    G15_IRA.add_irblock(irb)
+    G15_cfg.add_irblock(irb)
 
-G15_IRA.add_uniq_edge(G15_IRB0.loc_key, G15_IRB1.loc_key)
+G15_cfg.add_uniq_edge(G15_IRB0.loc_key, G15_IRB1.loc_key)
 
 # Expected output for graph 1
-G15_EXP_IRA = IRA.new_ircfg()
+G15_EXP_cfg = Lifter.new_ircfg()
 
 G15_EXP_IRB0 = gen_irblock(LBL0, [[], [ExprAssign(a, CST1)]])
 G15_EXP_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, a)]])
 
 for irb in [G15_EXP_IRB0, G15_EXP_IRB1]:
-    G15_EXP_IRA.add_irblock(irb)
+    G15_EXP_cfg.add_irblock(irb)
 
 # graph 16 : Graph where variable assigned multiple times in the same block
 
-G16_IRA = IRA.new_ircfg()
+G16_cfg = Lifter.new_ircfg()
 
 G16_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, CST1), ExprAssign(b, CST2),
                                ExprAssign(c, CST3)], [ExprAssign(a, c+CST1),
@@ -543,27 +543,27 @@ G16_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, a+b)], [ExprAssign(r, c+r)]])
 G16_IRB2 = gen_irblock(LBL2, [[]])
 
 for irb in [G16_IRB0, G16_IRB1]:
-    G16_IRA.add_irblock(irb)
+    G16_cfg.add_irblock(irb)
 
-G16_IRA.add_uniq_edge(G16_IRB0.loc_key, G16_IRB1.loc_key)
-G16_IRA.add_uniq_edge(G16_IRB1.loc_key, G16_IRB2.loc_key)
+G16_cfg.add_uniq_edge(G16_IRB0.loc_key, G16_IRB1.loc_key)
+G16_cfg.add_uniq_edge(G16_IRB1.loc_key, G16_IRB2.loc_key)
 
 for irb in [G16_IRB0, G16_IRB1]:
-    G16_IRA.add_irblock(irb)
+    G16_cfg.add_irblock(irb)
 
 # Expected output for graph 1
-G16_EXP_IRA = IRA.new_ircfg()
+G16_EXP_cfg = Lifter.new_ircfg()
 
 G16_EXP_IRB0 = gen_irblock(LBL0, [[ExprAssign(c, CST3)], [ExprAssign(a, c + CST1),
                                                        ExprAssign(b, c + CST2)]])
 G16_EXP_IRB1 = gen_irblock(LBL1, [[ExprAssign(r, a+b)], [ExprAssign(r, c+r)]])
 
 for irb in [G16_EXP_IRB0, G16_EXP_IRB1]:
-    G16_EXP_IRA.add_irblock(irb)
+    G16_EXP_cfg.add_irblock(irb)
 
 # graph 17 : parallel ir
 
-G17_IRA = IRA.new_ircfg()
+G17_cfg = Lifter.new_ircfg()
 
 G17_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, a*b),
                                ExprAssign(b, c),
@@ -620,12 +620,12 @@ G17_IRB0 = gen_irblock(LBL0, [[ExprAssign(a, a*b),
                          ])
 
 for irb in [G17_IRB0]:
-    G17_IRA.add_irblock(irb)
+    G17_cfg.add_irblock(irb)
 
-#G17_IRA.graph.add_node(G17_IRB0.loc_key)
+#G17_cfg.graph.add_node(G17_IRB0.loc_key)
 
 # Expected output for graph 17
-G17_EXP_IRA = IRA.new_ircfg()
+G17_EXP_cfg = Lifter.new_ircfg()
 
 G17_EXP_IRB0 = gen_irblock(LBL0, [[],
 
@@ -663,48 +663,48 @@ G17_EXP_IRB0 = gen_irblock(LBL0, [[],
                                  ])
 
 for irb in [G17_EXP_IRB0]:
-    G17_EXP_IRA.add_irblock(irb)
+    G17_EXP_cfg.add_irblock(irb)
 
 # Beginning  of tests
 
-for test_nb, test in enumerate([(G1_IRA, G1_EXP_IRA),
-                                (G2_IRA, G2_EXP_IRA),
-                                (G3_IRA, G3_EXP_IRA),
-                                (G4_IRA, G4_EXP_IRA),
-                                (G5_IRA, G5_EXP_IRA),
-                                (G6_IRA, G6_EXP_IRA),
-                                (G7_IRA, G7_EXP_IRA),
-                                (G8_IRA, G8_EXP_IRA),
-                                (G9_IRA, G9_EXP_IRA),
-                                (G10_IRA, G10_EXP_IRA),
-                                (G11_IRA, G11_EXP_IRA),
-                                (G12_IRA, G12_EXP_IRA),
-                                (G13_IRA, G13_EXP_IRA),
-                                (G14_IRA, G14_EXP_IRA),
-                                (G15_IRA, G15_EXP_IRA),
-                                (G16_IRA, G16_EXP_IRA),
-                                (G17_IRA, G17_EXP_IRA)
+for test_nb, test in enumerate([(G1_cfg, G1_EXP_cfg),
+                                (G2_cfg, G2_EXP_cfg),
+                                (G3_cfg, G3_EXP_cfg),
+                                (G4_cfg, G4_EXP_cfg),
+                                (G5_cfg, G5_EXP_cfg),
+                                (G6_cfg, G6_EXP_cfg),
+                                (G7_cfg, G7_EXP_cfg),
+                                (G8_cfg, G8_EXP_cfg),
+                                (G9_cfg, G9_EXP_cfg),
+                                (G10_cfg, G10_EXP_cfg),
+                                (G11_cfg, G11_EXP_cfg),
+                                (G12_cfg, G12_EXP_cfg),
+                                (G13_cfg, G13_EXP_cfg),
+                                (G14_cfg, G14_EXP_cfg),
+                                (G15_cfg, G15_EXP_cfg),
+                                (G16_cfg, G16_EXP_cfg),
+                                (G17_cfg, G17_EXP_cfg)
 ]):
     # Extract test elements
-    g_ira, g_exp_ira = test
+    g_ircfg, g_exp_ircfg = test
 
     print("[+] Test", test_nb+1)
 
     # Print initial graph, for debug
-    open("graph_%02d.dot" % (test_nb+1), "w").write(g_ira.dot())
+    open("graph_%02d.dot" % (test_nb+1), "w").write(g_ircfg.dot())
 
-    reaching_defs = ReachingDefinitions(g_ira)
+    reaching_defs = ReachingDefinitions(g_ircfg)
     defuse = DiGraphDefUse(reaching_defs, deref_mem=True)
 
     # # Simplify graph
-    deadrm(g_ira)
+    deadrm(g_ircfg)
 
     # # Print simplified graph, for debug
-    open("simp_graph_%02d.dot" % (test_nb+1), "w").write(g_ira.dot())
+    open("simp_graph_%02d.dot" % (test_nb+1), "w").write(g_ircfg.dot())
 
     # Same number of blocks
-    assert len(g_ira.blocks) == len(g_exp_ira.blocks)
+    assert len(g_ircfg.blocks) == len(g_exp_ircfg.blocks)
     # Check that each expr in the blocks are the same
-    for lbl, irb in viewitems(g_ira.blocks):
-        exp_irb = g_exp_ira.blocks[lbl]
+    for lbl, irb in viewitems(g_ircfg.blocks):
+        exp_irb = g_exp_ircfg.blocks[lbl]
         assert exp_irb.assignblks == irb.assignblks
diff --git a/test/analysis/depgraph.py b/test/analysis/depgraph.py
index 49a395a1..f0b67737 100644
--- a/test/analysis/depgraph.py
+++ b/test/analysis/depgraph.py
@@ -6,7 +6,7 @@ from future.utils import viewitems
 from miasm.expression.expression import ExprId, ExprInt, ExprAssign, \
     ExprCond, ExprLoc, LocKey
 from miasm.core.locationdb import LocationDB
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 from miasm.ir.ir import IRBlock, AssignBlock
 from miasm.core.graph import DiGraph
 from miasm.analysis.depgraph import DependencyNode, DependencyGraph
@@ -91,7 +91,7 @@ class Arch(object):
         return SP
 
 
-class IRATest(ira):
+class IRATest(LifterModelCall):
 
     """Fake IRA class for tests"""
 
diff --git a/test/analysis/dse.py b/test/analysis/dse.py
index 570860e4..7a2843e0 100644
--- a/test/analysis/dse.py
+++ b/test/analysis/dse.py
@@ -90,7 +90,7 @@ class DSETest(object):
         self.assembly = bytes(output)
 
     def check(self):
-        regs = self.dse.ir_arch.arch.regs
+        regs = self.dse.lifter.arch.regs
         value = self.dse.eval_expr(regs.EDX)
         # The expected value should contains '<<', showing it has been in the
         # corresponding generated label
@@ -116,8 +116,8 @@ class DSEAttachInBreakpoint(DSETest):
     def __init__(self, *args, **kwargs):
         super(DSEAttachInBreakpoint, self).__init__(*args, **kwargs)
         self._dse = None
-        ircls = self.machine.ir
-        self._regs = ircls(self.loc_db).arch.regs
+        lifter_cls = self.machine.lifter
+        self._regs = lifter_cls(self.loc_db).arch.regs
         self._testid = ExprId("TEST", self._regs.EBX.size)
 
     def bp_attach(self, jitter):
diff --git a/test/analysis/unssa.py b/test/analysis/unssa.py
index 5844bfb4..bc7db487 100644
--- a/test/analysis/unssa.py
+++ b/test/analysis/unssa.py
@@ -5,7 +5,7 @@ from miasm.expression.expression import ExprId, ExprInt, ExprAssign, ExprMem, \
     ExprCond, ExprLoc
 from miasm.core.locationdb import LocationDB
 from miasm.analysis.simplifier import IRCFGSimplifierSSA
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 from miasm.ir.ir import IRCFG, IRBlock, AssignBlock
 
 loc_db = LocationDB()
@@ -73,7 +73,7 @@ class Arch(object):
     def getsp(self, _):
         return sp
 
-class IRATest(ira):
+class IRATest(LifterModelCall):
 
     """Fake IRA class for tests"""
 
@@ -601,8 +601,8 @@ class CustomIRCFGSimplifierSSA(IRCFGSimplifierSSA):
         """
         regs = set(
             [
-                self.ir_arch.pc,
-                self.ir_arch.IRDst,
+                self.lifter.pc,
+                self.lifter.IRDst,
             ]
         )
         return regs
diff --git a/test/arch/mep/ir/test_ir.py b/test/arch/mep/ir/test_ir.py
index 97a3ec1e..c811988b 100644
--- a/test/arch/mep/ir/test_ir.py
+++ b/test/arch/mep/ir/test_ir.py
@@ -6,7 +6,7 @@ from __future__ import print_function
 from miasm.core.utils import decode_hex
 from miasm.arch.mep.arch import mn_mep
 from miasm.arch.mep.regs import regs_init
-from miasm.arch.mep.ira import ir_mepb, ir_a_mepb
+from miasm.arch.mep.lifter_model_call import ir_mepb, ir_a_mepb
 from miasm.expression.expression import ExprId, ExprInt, ExprMem
 from miasm.ir.symbexec import SymbolicExecutionEngine
 from miasm.core.locationdb import LocationDB
diff --git a/test/arch/mep/ir/ut_helpers_ir.py b/test/arch/mep/ir/ut_helpers_ir.py
index c5bf36b9..ddbfdffb 100644
--- a/test/arch/mep/ir/ut_helpers_ir.py
+++ b/test/arch/mep/ir/ut_helpers_ir.py
@@ -11,7 +11,7 @@ from miasm.ir.symbexec import SymbolicExecutionEngine
 from miasm.core.locationdb import LocationDB
 from miasm.core.utils import Disasm_Exception
 from miasm.ir.ir import AssignBlock
-from miasm.arch.mep.ira import ir_a_mepb
+from miasm.arch.mep.lifter_model_call import ir_a_mepb
 from miasm.expression.expression import ExprId, ExprInt, ExprOp, ExprMem, \
     ExprAssign, ExprLoc
 
diff --git a/test/ir/reduce_graph.py b/test/ir/reduce_graph.py
index 4aa2d5ef..5142cf5a 100644
--- a/test/ir/reduce_graph.py
+++ b/test/ir/reduce_graph.py
@@ -9,7 +9,7 @@ from miasm.expression.expression import ExprId, ExprInt, ExprAssign, ExprCond, \
     ExprLoc, LocKey
 
 from miasm.core.locationdb import LocationDB
-from miasm.ir.analysis import ira
+from miasm.ir.analysis import LifterModelCall
 from miasm.ir.ir import IRBlock, AssignBlock, IRCFG
 from miasm.analysis.data_flow import merge_blocks
 
@@ -70,7 +70,7 @@ class Arch(object):
         return SP
 
 
-class IRATest(ira):
+class IRATest(LifterModelCall):
 
     """Fake IRA class for tests"""
 
diff --git a/test/ir/symbexec.py b/test/ir/symbexec.py
index d627f4b9..5b4d19b2 100755
--- a/test/ir/symbexec.py
+++ b/test/ir/symbexec.py
@@ -20,8 +20,8 @@ class TestSymbExec(unittest.TestCase):
 
 
         loc_db = LocationDB()
-        ira = ir_x86_32(loc_db)
-        ircfg = ira.new_ircfg()
+        lifter_model_call = ir_x86_32(loc_db)
+        ircfg = lifter_model_call.new_ircfg()
 
         id_x = ExprId('x', 32)
         id_a = ExprId('a', 32)
@@ -36,7 +36,7 @@ class TestSymbExec(unittest.TestCase):
                     return id_x
                 return super(CustomSymbExec, self).mem_read(expr)
 
-        sb = CustomSymbExec(ira,
+        sb = CustomSymbExec(lifter_model_call,
                             {
                                 ExprMem(ExprInt(0x4, 32), 8): ExprInt(0x44, 8),
                                 ExprMem(ExprInt(0x5, 32), 8): ExprInt(0x33, 8),
@@ -229,7 +229,7 @@ class TestSymbExec(unittest.TestCase):
         assert found
 
 
-        sb_empty = SymbolicExecutionEngine(ira)
+        sb_empty = SymbolicExecutionEngine(lifter_model_call)
         sb_empty.dump()
 
 
diff --git a/test/test_all.py b/test/test_all.py
index c2391572..a8e55b2f 100755
--- a/test/test_all.py
+++ b/test/test_all.py
@@ -602,8 +602,8 @@ for script, prods, depends in [
         ], ["bin_cfg.dot"], [test_x86_32_dis]),
         (["dis_binary_ir.py", Example.get_sample("test_x86_32_dis.bin"),
         ], ["bin_ir_cfg.dot"], [test_x86_32_dis]),
-        (["dis_binary_ira.py", Example.get_sample("test_x86_32_dis.bin"),
-        ], ["bin_ira_cfg.dot"], [test_x86_32_dis]),
+        (["dis_binary_lifter_model_call.py", Example.get_sample("test_x86_32_dis.bin"),
+        ], ["bin_lifter_model_call_cfg.dot"], [test_x86_32_dis]),
         (["full.py", Example.get_sample("box_upx.exe")],
          ["graph_execflow.dot", "lines.dot"], []),
 ]: