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+package com.seaofnodes.simple;
+
+import com.seaofnodes.simple.codegen.CodeGen;
+import com.seaofnodes.simple.codegen.CompUnit;
+import com.seaofnodes.simple.codegen.CodeGen.Phase;
+import com.seaofnodes.simple.print.*;
+import com.seaofnodes.simple.type.TypeInteger;
+import com.seaofnodes.simple.util.Ary;
+import com.seaofnodes.simple.util.Utils;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+
+public class Simple {
+ static void usage() {
+ System.out.println(
+"""
+simple [options] input-file.smp ...program args...
+Options are applied in-order.
+Options:
+ --help - This text
+
+ --root root/ - Project root directory; this must end in a '/' and input
+ files are relative paths to this. If missing, the one input
+ file path is treated as its own root directory.
+
+ -o output - Project output directory; similar to --root, if 'output' ends in a
+ '/', then all result files use relative paths to 'output', using a input file
+ root-relative path. If --root is missing, the one result file is named 'output'
+
+ -L path - add an external Simple object search path
+ --eval - (slowly) evaluate the compiled code in emulator
+ --run - run the compiled code natively; this is the default
+ --main - export the top-level initializer as C `main`
+ --cpu <cpu-name> - use specific CPU (x86_64_v2, riscv, arm)
+ --abi <abi-name> - use specific ABI variant (SystemV)
+ --target - print native CPU and ABI
+ --version
+ -S - dump generated assembler code
+ --dump-size - print the size of generated code
+ --dump-time - print compilation and execution times
+ --dump-after-parse - dump intermediate representation after parse
+ --dump-after-iter - dump intermediate representation after pessimistic iter pass
+ --dump-after-opto - dump intermediate representation after SCCP
+ --dump-after-iter-post-opto - dump after SCCP-driven peepholes and inlining
+ --dump-after-finalize-ir - dump after field layout and IR finalization
+ --dump-after-type-check - dump intermediate representation after type check pass
+ --dump-after-lower - dump expanded class initialization before loop trees
+ --dump-after-select - dump intermediate representation after instruction selection pass
+ --dump-after-gcm - dump intermediate representation after GCM pass
+ --dump-after-local-sched - dump intermediate representation after local scheduling pass
+ --dump-after-reg-alloc - dump intermediate representation after register allocation pass
+ --dump-after-encode - dump intermediate representation after encoding pass
+ --dump-after-all - dump intermediate representation after all passes
+ --dump - dump final intermediate representation only
+"""
+);
+ System.exit(0);
+ }
+
+ static void bad_usage() { throw bad("Invalid usage (use --help)"); }
+ static RuntimeException bad(String err) {
+ System.err.println("ERROR: "+err);
+ System.exit(1);
+ return new RuntimeException(err);
+ }
+
+ static void target() {
+ System.out.print(TestC.CPU_PORT);
+ System.out.print("-");
+ System.out.println(TestC.CALL_CONVENTION);
+ }
+
+ static void print_compilation_times(CodeGen code) {
+ long[] times = code._times;
+ for( int i=0; i<code._times.length; i++ )
+ System.out.printf("%20s %.3f sec%n", Phase.values()[i], times[i]);
+ }
+
+ static String getInput() {
+ BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
+ StringBuilder text=new StringBuilder();
+ try {
+ for( String line; (line=reader.readLine())!=null; ) text.append(line).append('\n');
+ } catch( IOException e ) { throw new RuntimeException(e); }
+ return text.toString();
+ }
+
+ public static void main(String[] args) throws Exception {
+ String root = null;
+ String input_filename = null;
+ boolean do_eval = false;
+ boolean do_run = true;
+ boolean do_codegen = false;
+ boolean emit_main = false;
+ boolean print_time = false;
+ boolean print_size = false;
+ boolean print_asm = false;
+ int dump = 0;
+ int first_arg = 0;
+ String src = null;
+ String cpu = null;
+ String abi = null;
+ String out = null;
+ ArrayList<String> libPaths = new ArrayList<>();
+
+ // Parse command line
+ int i; for( i = 0; i < args.length; i++ ) {
+ String arg = args[i];
+ if( arg.charAt(0) != '-' ) {
+ input_filename = arg;
+ break;
+ }
+
+ switch (arg) {
+ case "-": input_filename=""; break;
+ case "--dump-after-parse": dump |= 1<<Phase.Parse .ordinal() ; break;
+ case "--dump-after-iter": dump |= 1<<Phase.Iter .ordinal() ; break;
+ case "--dump-after-opto": dump |= 1<<Phase.Opto .ordinal() ; break;
+ case "--dump-after-iter-post-opto": dump |= 1<<Phase.IterPostOpto.ordinal(); break;
+ case "--dump-after-finalize-ir": dump |= 1<<Phase.FinalizeIR.ordinal() ; break;
+ case "--dump-after-type-check": dump |= 1<<Phase.TypeCheck .ordinal() ; break;
+ case "--dump-after-lower": dump |= 1<<Phase.Lower .ordinal() ; break;
+ case "--dump-after-loop-tree": dump |= 1<<Phase.LoopTree .ordinal() ; break;
+ case "--dump-after-select": dump |= 1<<Phase.Select .ordinal() ; break;
+ case "--dump-after-gcm": dump |= 1<<Phase.Schedule .ordinal() ; break;
+ case "--dump-after-local-sched": dump |= 1<<Phase.LocalSched.ordinal() ; break;
+ case "--dump-after-reg-alloc": dump |= 1<<Phase.RegAlloc .ordinal() ; break;
+ case "--dump-after-encode": dump |= 1<<Phase.Encoding .ordinal() ; break;
+ case "--dump-after-export": dump |= 1<<Phase.Export .ordinal() ; break;
+ case "--dump": dump |= 1<<Phase.LastPhase .ordinal() ; break;
+ case "--dump-after-all": dump |= (2<<Phase.LastPhase .ordinal())-1; break;
+ case "-S": print_asm = true; break;
+ case "--eval": do_eval = true ; do_run = false; break;
+ case "--run": do_run = true ; break;
+ case "--norun": do_run = false; break;
+ case "--main": emit_main = true; break;
+ case "--dump-size": print_size = true; break;
+ case "--dump-time": print_time = true; break;
+ case "-o": if (out != null || i + 1 >= args.length || args[i + 1].charAt(0) == '-') bad_usage();
+ out = args[++i]; do_codegen=true;
+ break;
+ case "--root": if( root!=null || i+1>=args.length ) bad_usage();
+ root=args[++i];
+ break;
+ case "-L": if (i + 1 >= args.length || args[i + 1].charAt(0) == '-') bad_usage();
+ libPaths.add(args[++i]);
+ break;
+ case "--cpu": if (cpu != null || i + 1 >= args.length || args[i + 1].charAt(0) == '-') bad_usage();
+ cpu = args[++i];
+ break;
+ case "--abi": if (abi != null || i + 1 >= args.length || args[i + 1].charAt(0) == '-') bad_usage();
+ abi = args[++i];
+ break;
+ case "--target": target(); break;
+ case "--version": throw Utils.TODO();
+ case "--help": usage();
+ default: bad_usage();
+ }
+ }
+
+ // Break the paths into these parts:
+ // - A module path, given from "--root" or inferred from the one input file
+ // - Some sources [modpath/relpath/file.smp]*, all relative to the module path.
+ // - A build path, given from "-o" or inferred from the one input file
+ //
+ // All the sources are compiled, with outputs in [buildpath/relpath/file.o]*
+
+ if (input_filename == null) throw bad("no input file' (use --help)");
+ if( !input_filename.isEmpty() && !input_filename.endsWith(".smp") )
+ throw bad("File extension must be .smp");
+ Path inPath = Path.of(input_filename);
+
+ // Figure out the module path
+ Path modPath;
+ if( root == null ) {
+ modPath = inPath.getParent();
+ if( modPath == null )
+ modPath = Path.of(".");
+ } else {
+ modPath=Path.of(root);
+ inPath=modPath.resolve(inPath);
+ }
+
+ // Compute the module-relative paths for all sources
+ Path srcRelPath = modPath.relativize(inPath);
+ int n = srcRelPath.getNameCount();
+ Path relPath = n==1 ? null : srcRelPath.subpath(0,n-1);
+ // Compute source/class name
+ String srcNameExt = srcRelPath.getName(n-1).toString();
+ String srcName = srcRelPath.toString().replace('\\','/');
+ srcName=srcName.substring(0,srcName.length()-4);
+
+ // Compute the build path.
+ Path outPath;
+ if( out == null ) {
+ // If no output given, the build dir is the modPath
+ outPath = modPath;
+ } else {
+ // If the output is a directory, that is our out path
+ outPath = Path.of(out);
+ if( !out.endsWith("/") ) {
+ // If the output is a file, the directory is our outPath
+ Path fullOut = outPath;
+ outPath = outPath.getParent();
+ if( outPath == null )
+ outPath = Path.of(".");
+ Path foo = outPath.relativize(fullOut);
+ if( !foo.toString().equals(srcName+".o") )
+ throw bad("Output path needs to be of the form "+srcName+".o");
+ }
+ }
+ String outBase = outPath.resolve(srcName).toString();
+
+ if( do_run || print_asm || print_size ) {
+ if (cpu == null) cpu = TestC.CPU_PORT;
+ if (abi == null) abi = TestC.CALL_CONVENTION;
+ do_codegen = true;
+ }
+ if( cpu == null ) cpu = TestC.CPU_PORT;
+ if( abi == null ) abi = TestC.CALL_CONVENTION;
+
+ String simpleHome = System.getenv("SIMPLE_HOME");
+ if( simpleHome != null && !simpleHome.isEmpty() )
+ libPaths.add(Path.of(simpleHome,cpu+"_"+abi).toString());
+
+ // Keep file-backed units so discovery sees parents and siblings.
+ src = input_filename.isEmpty() ? getInput() : null;
+
+ // Compilation pipeline
+ Ary<String> externPaths = libPaths.isEmpty() ? null : new Ary<>(libPaths.toArray(new String[0]));
+ CodeGen code = new CodeGen(modPath.toString(), outPath.toString(), externPaths, srcName, src, 456, true, TypeInteger.BOT );
+ code.driver(do_eval && !do_codegen ? Phase.TypeCheck : Phase.LastPhase,
+ cpu,abi, false, emit_main || do_run || do_eval, dump);
+
+ if( do_codegen && print_asm )
+ System.out.println(code.asm());
+
+ if( print_size )
+ System.out.printf( "Code Size: %d%n", code._encoding._bits.size());
+
+ if( print_time )
+ print_compilation_times(code);
+
+ if( do_eval ) {
+ // TODO: Support for evaluation of functions with different argument numbers and types
+ long t = System.currentTimeMillis();
+ long arg = (i+1 < args.length) ? Integer.parseInt(args[i+1]) : 0;
+ System.out.println(Eval2.eval(code, arg, 100000));
+ if( print_time )
+ System.out.printf( "EXECUTION TIME: %.3f sec%n", (System.currentTimeMillis() - t) / 1e3);
+ }
+ if( do_run ) {
+ if ( !TestC.CPU_PORT.equals( cpu ) || !TestC.CALL_CONVENTION.equals( abi ) )
+ throw bad("cannot run code on not native target");
+ String exe = TestC.OS.startsWith("Windows") ? outBase+".exe" : outBase;
+ String result = TestC.gcc(code, null, null, "", exe);
+ System.out.print(result);
+ }
+ }
+}