fix cond block in do-while loops
[cparser] / main.c
diff --git a/main.c b/main.c
index 81d4760..b40a779 100644 (file)
--- 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;