mirror of
https://github.com/varun-r-mallya/Python-BPF.git
synced 2025-12-31 21:06:25 +00:00
Remove occurences of local_var_metadata from functions_pass, use LocalSymbol.var
This commit is contained in:
Pragyansh Chaturvedi
@ -9,7 +9,6 @@ from .type_deducer import ctypes_to_ir
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from .binary_ops import handle_binary_op
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from .expr_pass import eval_expr, handle_expr
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local_var_metadata: dict[str | Any, Any] = {}
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logger = logging.getLogger(__name__)
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@ -57,10 +56,9 @@ def handle_assign(
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if isinstance(target, ast.Attribute):
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# struct field assignment
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field_name = target.attr
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if var_name in local_sym_tab and var_name in local_var_metadata:
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struct_type = local_var_metadata[var_name]
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if var_name in local_sym_tab:
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struct_type = local_sym_tab[var_name].metadata
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struct_info = structs_sym_tab[struct_type]
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if field_name in struct_info.fields:
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field_ptr = struct_info.gep(
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builder, local_sym_tab[var_name][0], field_name
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@ -93,16 +91,20 @@ def handle_assign(
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elif isinstance(rval, ast.Constant):
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if isinstance(rval.value, bool):
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if rval.value:
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builder.store(ir.Constant(ir.IntType(1), 1), local_sym_tab[var_name][0])
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builder.store(
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ir.Constant(ir.IntType(1), 1), local_sym_tab[var_name].var
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)
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else:
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builder.store(ir.Constant(ir.IntType(1), 0), local_sym_tab[var_name][0])
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builder.store(
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ir.Constant(ir.IntType(1), 0), local_sym_tab[var_name].var
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)
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print(f"Assigned constant {rval.value} to {var_name}")
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elif isinstance(rval.value, int):
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# Assume c_int64 for now
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# var = builder.alloca(ir.IntType(64), name=var_name)
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# var.align = 8
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builder.store(
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ir.Constant(ir.IntType(64), rval.value), local_sym_tab[var_name][0]
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ir.Constant(ir.IntType(64), rval.value), local_sym_tab[var_name].var
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)
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# local_sym_tab[var_name] = var
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print(f"Assigned constant {rval.value} to {var_name}")
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@ -118,7 +120,7 @@ def handle_assign(
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global_str.global_constant = True
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global_str.initializer = str_const
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str_ptr = builder.bitcast(global_str, ir.PointerType(ir.IntType(8)))
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builder.store(str_ptr, local_sym_tab[var_name][0])
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builder.store(str_ptr, local_sym_tab[var_name].var)
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print(f"Assigned string constant '{rval.value}' to {var_name}")
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else:
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print("Unsupported constant type")
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@ -136,13 +138,13 @@ def handle_assign(
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# var = builder.alloca(ir_type, name=var_name)
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# var.align = ir_type.width // 8
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builder.store(
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ir.Constant(ir_type, rval.args[0].value), local_sym_tab[var_name][0]
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ir.Constant(ir_type, rval.args[0].value),
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local_sym_tab[var_name].var,
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)
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print(
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f"Assigned {call_type} constant "
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f"{rval.args[0].value} to {var_name}"
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)
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# local_sym_tab[var_name] = var
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elif HelperHandlerRegistry.has_handler(call_type):
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# var = builder.alloca(ir.IntType(64), name=var_name)
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# var.align = 8
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@ -154,10 +156,8 @@ def handle_assign(
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local_sym_tab,
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map_sym_tab,
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structs_sym_tab,
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local_var_metadata,
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)
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builder.store(val[0], local_sym_tab[var_name][0])
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# local_sym_tab[var_name] = var
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builder.store(val[0], local_sym_tab[var_name].var)
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print(f"Assigned constant {rval.func.id} to {var_name}")
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elif call_type == "deref" and len(rval.args) == 1:
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print(f"Handling deref assignment {ast.dump(rval)}")
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@ -174,18 +174,15 @@ def handle_assign(
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print("Failed to evaluate deref argument")
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return
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print(f"Dereferenced value: {val}, storing in {var_name}")
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builder.store(val[0], local_sym_tab[var_name][0])
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# local_sym_tab[var_name] = var
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builder.store(val[0], local_sym_tab[var_name].var)
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print(f"Dereferenced and assigned to {var_name}")
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elif call_type in structs_sym_tab and len(rval.args) == 0:
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struct_info = structs_sym_tab[call_type]
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ir_type = struct_info.ir_type
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# var = builder.alloca(ir_type, name=var_name)
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# Null init
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builder.store(ir.Constant(ir_type, None), local_sym_tab[var_name][0])
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local_var_metadata[var_name] = call_type
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builder.store(ir.Constant(ir_type, None), local_sym_tab[var_name].var)
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print(f"Assigned struct {call_type} to {var_name}")
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# local_sym_tab[var_name] = var
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else:
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print(f"Unsupported assignment call type: {call_type}")
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elif isinstance(rval.func, ast.Attribute):
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@ -208,12 +205,10 @@ def handle_assign(
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local_sym_tab,
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map_sym_tab,
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structs_sym_tab,
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local_var_metadata,
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)
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# var = builder.alloca(ir.IntType(64), name=var_name)
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# var.align = 8
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builder.store(val[0], local_sym_tab[var_name][0])
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# local_sym_tab[var_name] = var
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builder.store(val[0], local_sym_tab[var_name].var)
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else:
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print("Unsupported assignment call structure")
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else:
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@ -237,7 +232,7 @@ def handle_cond(func, module, builder, cond, local_sym_tab, map_sym_tab):
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return None
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elif isinstance(cond, ast.Name):
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if cond.id in local_sym_tab:
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var = local_sym_tab[cond.id][0]
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var = local_sym_tab[cond.id].var
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val = builder.load(var)
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if val.type != ir.IntType(1):
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# Convert nonzero values to true, zero to false
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@ -352,7 +347,6 @@ def process_stmt(
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):
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print(f"Processing statement: {ast.dump(stmt)}")
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if isinstance(stmt, ast.Expr):
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print(local_var_metadata)
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handle_expr(
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func,
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module,
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@ -361,7 +355,6 @@ def process_stmt(
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local_sym_tab,
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map_sym_tab,
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structs_sym_tab,
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local_var_metadata,
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)
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elif isinstance(stmt, ast.Assign):
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handle_assign(
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@ -677,7 +670,8 @@ def infer_return_type(func_node: ast.FunctionDef):
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if found_type is None:
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found_type = t
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elif found_type != t:
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raise ValueError(f"Conflicting return types:{found_type} vs {t}")
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raise ValueError(f"Conflicting return types:{
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found_type} vs {t}")
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return found_type or "None"
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