X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=main.c;h=b40a779641d1e87432bfdfda74bdebf301d9b830;hb=c87f35f3b3459af9fefa14ee73dd5b5a0dd679f1;hp=81d476022db346af8fd8e84f97f6194bf37f5856;hpb=d5e8df5885f97ea65839f8970b8697549c207610;p=cparser

diff --git a/main.c b/main.c
index 81d4760..b40a779 100644
--- a/main.c
+++ b/main.c
@@ -1,17 +1,93 @@
 #include <config.h>
 
-#include <stdlib.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <errno.h>
 #include <string.h>
+#include <assert.h>
+
+#ifndef WITH_LIBCORE
+#define WITH_LIBCORE
+#endif
 
-#include "lexer_t.h"
+#include <libfirm/firm.h>
+#include <libfirm/be.h>
+
+#include "lexer.h"
 #include "token_t.h"
+#include "type_hash.h"
+#include "parser.h"
+#include "ast2firm.h"
+#include "adt/error.h"
+
+#define PREPROCESSOR "gcc -E"
+#define LINKER       "gcc"
+
+static int verbose;
+
+static const ir_settings_if_conv_t *if_conv_info = NULL;
+
+static void initialize_firm(void)
+{
+	be_opt_register();
+	firm_init_options(NULL, 0, NULL);
+
+	const backend_params *be_params;
+	firm_parameter_t params;
+	memset(&params, 0, sizeof(params));
+
+	params.size = sizeof(params);
+	params.enable_statistics = 0;
+	params.initialize_local_func = uninitialized_local_var;
+	params.cc_mask = 0;
+	params.builtin_dbg = NULL;
+
+	/* initialize backend */
+	be_params = be_init();
+	be_set_debug_retrieve(retrieve_dbg);
+	params.arch_op_settings = be_params->arch_op_settings;
+	if_conv_info            = be_params->if_conv_info;
 
-#if 0
-static
-void get_output_name(char *buf, size_t buflen, const char *inputname,
-                     const char *newext)
+	/* intialize firm itself */
+	init_firm(&params);
+	dbg_init(NULL, NULL, dbg_snprint);
+
+	set_opt_constant_folding(1);
+	set_opt_unreachable_code(1);
+	set_opt_control_flow_straightening(1);
+	set_opt_control_flow_weak_simplification(1);
+	set_opt_control_flow_strong_simplification(1);
+	set_opt_dead_node_elimination(1);
+	set_opt_reassociation(1);
+	set_opt_inline(1);
+	set_opt_dyn_meth_dispatch(1);
+	set_opt_normalize(1);
+	set_opt_tail_recursion(1);
+	set_opt_dead_method_elimination(1);
+	set_opt_precise_exc_context(0);
+	set_opt_loop_unrolling(0);
+	set_opt_strength_red(0);
+	set_opt_redundant_loadstore(1);
+	set_opt_fragile_ops(0);
+	set_opt_function_call(1);
+	set_opt_optimize_class_casts(0);
+	set_opt_suppress_downcast_optimization(0);
+	set_opt_remove_confirm(1);
+	set_opt_scalar_replacement(1);
+	set_opt_ldst_only_null_ptr_exceptions(1);
+	set_opt_alias_analysis(1);
+
+	dump_consts_local(1);
+	dump_keepalive_edges(1);
+}
+
+static void dump(ir_graph *irg, const char *suffix)
+{
+	dump_ir_block_graph(irg, suffix);
+}
+
+static void get_output_name(char *buf, size_t buflen, const char *inputname,
+                            const char *newext)
 {
 	size_t last_dot = 0xffffffff;
 	size_t i = 0;
@@ -32,41 +108,273 @@ void get_output_name(char *buf, size_t buflen, const char *inputname,
 		panic("filename too long");
 	memcpy(buf+last_dot, newext, extlen);
 }
-#endif
 
-static
-void compile(const char *fname)
+static translation_unit_t *do_parsing(const char *fname, const char *input)
 {
-	lexer_t         lexer;
-	token_t         token;
+	FILE *in = fopen(fname, "r");
+	if(in == NULL) {
+		fprintf(stderr, "Couldn't open '%s': %s\n", fname, strerror(errno));
+		exit(1);
+	}
 
+	lexer_open_stream(in, input);
+
+	translation_unit_t *unit = parse();
+
+	fclose(in);
+
+	return unit;
+}
+
+static void lextest(const char *fname)
+{
 	FILE *in = fopen(fname, "r");
 	if(in == NULL) {
 		fprintf(stderr, "Couldn't open '%s': %s\n", fname, strerror(errno));
 		exit(1);
 	}
 
-	lexer_init(&lexer, in, fname);
+	lexer_open_stream(in, fname);
 
 	do {
-		lexer_next_token(&lexer, &token);
-		print_token(stdout, &token);
+		lexer_next_preprocessing_token();
+		print_token(stdout, &lexer_token);
 		puts("");
-	} while(token.type != T_EOF);
+	} while(lexer_token.type != T_EOF);
 
-	lexer_destroy(&lexer);
 	fclose(in);
 }
 
+static void backend(const char *inputname, const char *outname)
+{
+	FILE *out = fopen(outname, "w");
+	if(out == NULL) {
+		fprintf(stderr, "couldn't open '%s' for writing: %s\n", outname,
+				strerror(errno));
+		exit(1);
+	}
+
+	be_main(out, inputname);
+
+	fclose(out);
+}
+
+static void emit(const char *input_name, const char *out_name)
+{
+	backend(input_name, out_name);
+}
+
+static void preprocess(const char *in, const char *out)
+{
+	char buf[4096];
+
+	snprintf(buf, sizeof(buf), "%s %s -o %s", PREPROCESSOR, in, out);
+	if(verbose) {
+		puts(buf);
+	}
+	int err = system(buf);
+	if(err != 0) {
+		fprintf(stderr, "preprocessor reported an error\n");
+		exit(1);
+	}
+}
+
+static void link(const char *in, const char *out)
+{
+	char buf[4096];
+
+	snprintf(buf, sizeof(buf), "%s %s -o %s", LINKER, in, out);
+	if(verbose) {
+		puts(buf);
+	}
+	int err = system(buf);
+	if(err != 0) {
+		fprintf(stderr, "linker reported an error\n");
+		exit(1);
+	}
+}
+
+static void assemble(const char *in, const char *out)
+{
+	char buf[4096];
+
+	snprintf(buf, sizeof(buf), "%s %s -c -o %s", LINKER, in, out);
+	if(verbose) {
+		puts(buf);
+	}
+	int err = system(buf);
+	if(err != 0) {
+		fprintf(stderr, "assembler reported an error\n");
+		exit(1);
+	}
+}
+
+static void create_firm_prog(translation_unit_t *unit)
+{
+	translation_unit_to_firm(unit);
+
+	//dump_globals_as_text(dump_verbosity_max, "-globals");
+
+	int n_irgs = get_irp_n_irgs();
+	for(int i = 0; i < n_irgs; ++i) {
+		ir_graph *const irg = get_irp_irg(i);
+		dump(irg, "-start");
+	}
+}
+
+static void optimize(void)
+{
+	int         arr_len;
+	ir_entity **keep_methods;
+
+	cgana(&arr_len, &keep_methods);
+	gc_irgs(arr_len, keep_methods);
+	free(keep_methods);
+
+	optimize_funccalls(0);
+
+	for(int i = 0; i < get_irp_n_irgs(); ++i) {
+		ir_graph *irg = get_irp_irg(i);
+		place_code(irg);
+		dump(irg, "-place");
+		optimize_graph_df(irg);
+		dump(irg, "-localopt");
+		optimize_cf(irg);
+		dump(irg, "-cf");
+	}
+}
+
+void write_fluffy_decls(translation_unit_t *unit);
+
+typedef enum compile_mode_t {
+	Compile,
+	CompileAssemble,
+	CompileAssembleLink,
+	LexTest,
+	PrintAst,
+	PrintFluffy
+} compile_mode_t;
+
+static void usage(const char *argv0)
+{
+	fprintf(stderr, "Usage %s input [-o output] [-c]\n", argv0);
+}
+
 int main(int argc, char **argv)
 {
+	initialize_firm();
+
 	init_symbol_table();
 	init_tokens();
+	init_lexer();
+	init_types();
+	init_typehash();
+	init_ast();
+	init_parser();
+	init_ast2firm();
+
+	const char *input   = NULL;
+	const char *outname = NULL;
+	compile_mode_t mode = CompileAssembleLink;
 
 	for(int i = 1; i < argc; ++i) {
-		compile(argv[i]);
+		const char *arg = argv[i];
+		if(strcmp(arg, "-o") == 0) {
+			++i;
+			if(i >= argc) {
+				usage(argv[0]);
+				return 1;
+			}
+			outname = argv[i];
+		} else if(strcmp(arg, "-c") == 0) {
+			mode = CompileAssemble;
+		} else if(strcmp(arg, "-S") == 0) {
+			mode = Compile;
+		} else if(strcmp(arg, "--lextest") == 0) {
+			mode = LexTest;
+		} else if(strcmp(arg, "--print-ast") == 0) {
+			mode = PrintAst;
+		} else if(strcmp(arg, "--print-fluffy") == 0) {
+			mode = PrintFluffy;
+		} else if(strcmp(arg, "-v") == 0) {
+			verbose = 1;
+		} else if(arg[0] == '-') {
+			usage(argv[0]);
+			return 1;
+		} else {
+			if(input != NULL) {
+				fprintf(stderr, "Error: multiple input files specified\n");
+				usage(argv[0]);
+				return 1;
+			} else {
+				input = arg;
+			}
+		}
+	}
+
+	if(input == NULL) {
+		fprintf(stderr, "%s: no input files\n", argv[0]);
+		return 1;
+	}
+
+	if(mode == LexTest) {
+		lextest(input);
+		return 0;
+	}
+
+	const char *tmpfile = tmpnam(NULL);
+	preprocess(input, tmpfile);
+
+	translation_unit_t *unit = do_parsing(tmpfile, input);
+	if(unit == NULL)
+		return 1;
+
+	if(mode == PrintAst) {
+		print_ast(unit);
+		return 0;
+	}
+	if(mode == PrintFluffy) {
+		ast_set_output(stdout);
+		write_fluffy_decls(unit);
+	}
+
+	char outsname[4096];
+	const char *sname = NULL;
+	if(mode == Compile) {
+		sname = outname;
+	}
+	if(sname == NULL) {
+		get_output_name(outsname, sizeof(outsname), input, ".s");
+		sname = outsname;
+	}
+
+	create_firm_prog(unit);
+	optimize();
+	emit(input, sname);
+
+	if(mode == CompileAssemble) {
+		char outoname[4096];
+		const char *oname = outname;
+		if(oname == NULL) {
+			get_output_name(outoname, sizeof(outoname), input, ".o");
+			oname = outoname;
+		}
+		assemble(sname, oname);
+	} else {
+		assert(mode == CompileAssembleLink);
+
+		if(outname == NULL)
+			outname = "a.out";
+
+		link(sname, outname);
 	}
 
+	exit_ast2firm();
+	exit_parser();
+	exit_ast();
+	exit_typehash();
+	exit_types();
+	exit_lexer();
 	exit_tokens();
 	exit_symbol_table();
 	return 0;