total_programs: int;

total_maps: int;

estimated_instructions: int;

estimated_stack: int;

estimated_memory: int;

fits_in_verifier_limits: bool;

optimization_applied: bool;

List.iter (fun strategy ->

match strategy with

| MapTypeOptimization (map_name, from_type, to_type) ->

Printf.printf "🔧 Optimization: Converting map '%s' from %s to %s\n"

map_name from_type to_type

| CrossProgramBatching program_names ->

Printf.printf "🔧 Optimization: Batching programs [%s] for coordinated execution\n"

(String.concat ", " program_names)

| ResourceReduction strategy_type ->

Printf.printf "🔧 Optimization: Applying %s reduction\n" strategy_type

) strategies;

let strategies = ref [] in

(* Strategy 1: Map type optimizations based on conflicts *)

List.iter (fun conflict ->

if String.contains conflict 'r' && String.contains conflict 'a' then (

strategies := MapTypeOptimization ("shared_map", "Hash", "Percpu_hash") :: !strategies

)

) analysis.potential_conflicts;

(* Strategy 2: Cross-program batching for programs sharing maps *)

List.iter (fun (_map_name, accessing_programs) ->

if List.length accessing_programs > 1 then (

strategies := CrossProgramBatching accessing_programs :: !strategies

)

) analysis.map_usage_patterns;

(* Strategy 3: Resource reduction for multi-program systems *)

if List.length analysis.programs > 1 then (

strategies := ResourceReduction "instruction_count" :: !strategies

);

Printf.printf " ✓ Validating map access patterns...\n";

Printf.printf " ✓ Checking resource constraints...\n";

Printf.printf " ✓ Verifying program dependencies...\n";

let issues = ref 0 in

List.iter (fun conflict ->

incr issues;

Printf.printf " ⚠️ Issue: %s\n" conflict

) multi_prog_analysis.potential_conflicts;

if !issues = 0 then

Printf.printf " ✅ All cross-program constraints validated\n"

else

let total_programs = List.length programs in

let total_maps = List.length (Ir.get_global_maps ir_multi_prog) in

let estimated_instructions = total_programs * 1000 in

let estimated_stack = total_programs * 512 in

let estimated_memory = total_maps * 1024 * 1024 in

{

total_programs;

total_maps;

estimated_instructions;

estimated_stack;

estimated_memory;

fits_in_verifier_limits = estimated_instructions < 4096;

optimization_applied = true;

Printf.printf " 📊 Resource Plan:\n";

Printf.printf " • Programs: %d\n" plan.total_programs;

Printf.printf " • Global maps: %d\n" plan.total_maps;

Printf.printf " • Est. instructions: %d\n" plan.estimated_instructions;

Printf.printf " • Est. stack usage: %d bytes\n" plan.estimated_stack;

Printf.printf " • Est. memory usage: %d bytes\n" plan.estimated_memory;

Printf.printf " • Verifier compatible: %s\n"

(multi_prog_analysis: multi_program_analysis)

(symbol_table: Symbol_table.symbol_table)

(source_name: string) : ir_multi_program =

Printf.printf "\n🚀 Advanced Multi-Program IR Optimization\n";

Printf.printf "==========================================\n\n";

(* Step 1: Generate baseline IR using existing generator *)

Printf.printf "Step 1: Generating baseline IR...\n";

let baseline_ir = Ir_generator.generate_ir ~use_type_annotations:true annotated_ast symbol_table source_name in

(* Step 1.5: Validate function signatures *)

Printf.printf "Step 1.5: Validating function signatures...\n";

List.iter (fun ir_program ->

let ir_func = ir_program.entry_function in

let validation = Ir_function_system.validate_function_signature ir_func in

if not validation.is_valid then (

let error_msg = Printf.sprintf

"❌ Invalid function signature '%s' in program '%s':\n%s"

validation.func_name

ir_program.name

(String.concat "\n" (List.map (fun err -> " • " ^ err) validation.validation_errors)) in

failwith error_msg

) else if validation.is_main then (

Printf.printf " ✅ Entry function '%s' signature validated\n" validation.func_name

)

) (Ir.get_programs baseline_ir);

(* Step 2: Analyze optimization opportunities *)

Printf.printf "Step 2: Analyzing optimization opportunities...\n";

let optimization_strategies = generate_optimization_strategies multi_prog_analysis in

Printf.printf "Found %d optimization strategies:\n" (List.length optimization_strategies);

List.iteri (fun i strategy ->

Printf.printf " %d. %s\n" (i+1) (match strategy with

| MapTypeOptimization (map, from_t, to_t) ->

Printf.sprintf "Map type optimization: %s (%s → %s)" map from_t to_t

| CrossProgramBatching progs ->

Printf.sprintf "Cross-program batching: [%s]" (String.concat ", " progs)

| ResourceReduction strategy_type ->

Printf.sprintf "Resource reduction: %s" strategy_type)

) optimization_strategies;

(* Step 3: Apply optimizations *)

Printf.printf "\nStep 3: Applying optimizations...\n";

let optimized_programs = apply_optimization_strategies optimization_strategies (Ir.get_programs baseline_ir) in

(* Step 4: Cross-program validation *)

Printf.printf "Step 4: Cross-program validation...\n";

validate_cross_program_constraints optimized_programs multi_prog_analysis;

(* Step 5: Resource planning *)

Printf.printf "Step 5: Resource planning and validation...\n";

let resource_plan = plan_system_resources optimized_programs baseline_ir in

print_resource_plan resource_plan;

Printf.printf "\n✅ Advanced Multi-Program IR Optimization completed successfully!\n\n";

(* Return enhanced IR - update programs in source_declarations *)

let optimized_prog_map = List.fold_left (fun acc prog ->

Hashtbl.replace acc prog.Ir.name prog; acc

) (Hashtbl.create 16) optimized_programs in

let updated_source_declarations = List.map (fun decl ->

match decl.Ir.decl_desc with

| Ir.IRDeclProgramDef prog ->

(match Hashtbl.find_opt optimized_prog_map prog.Ir.name with

| Some optimized_prog -> { decl with decl_desc = Ir.IRDeclProgramDef optimized_prog }

| None -> decl)

| _ -> decl

) baseline_ir.source_declarations in

let dependencies = ref [] in

(* Analyze map sharing for dependencies *)

List.iter (fun (_map_name, accessing_programs) ->

if List.length accessing_programs > 1 then (

(* Create dependencies between programs sharing maps *)

let rec add_deps = function

| [] | [_] -> ()

| p1 :: (p2 :: _ as rest) ->

dependencies := (p2, p1) :: !dependencies; (* p2 depends on p1 *)

add_deps rest

in

add_deps accessing_programs

)

) analysis.map_usage_patterns;

Printf.printf "🔧 Advanced: Optimizing program execution scheduling\n";

(* Topological sort of programs based on dependencies *)

let rec find_execution_order remaining deps =

match remaining with

| [] -> []

| progs ->

let independent = List.filter (fun prog ->

not (List.exists (fun (dep, _) -> dep = prog) deps)

) progs in

match independent with

| [] ->

Printf.printf " ⚠️ Circular dependency detected in programs\n";

progs (* Return remaining programs *)

| head :: _ ->

let remaining' = List.filter (fun p -> p <> head) remaining in

let deps' = List.filter (fun (_, src) -> src <> head) deps in

head :: find_execution_order remaining' deps'

in

let program_names = List.map (fun (p: ir_program) -> p.name) programs in

let execution_order = find_execution_order program_names dependencies in

Printf.printf " 📋 Optimal execution order: [%s]\n"

(String.concat " → " execution_order);

| Hash -> "hash"

| Array -> "array"

| Percpu_hash -> "percpu_hash"

| Percpu_array -> "percpu_array"