more work on local variable support

[cparser] / main.c

diff --git a/main.c b/main.c
index 09dd39c..a646523 100644 (file)
--- a/main.c
+++ b/main.c
@@ -5,15 +5,82 @@
 #include <errno.h>
 #include <string.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 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;
+
+       /* 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);
+}
+
+static void dump(const char *suffix)
+{
+       dump_ir_block_graph(current_ir_graph, suffix);
+}
 
-#if 0
-static
-void get_output_name(char *buf, size_t buflen, const char *inputname,
-                     const char *newext)
+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;
@@ -34,10 +101,8 @@ void get_output_name(char *buf, size_t buflen, const char *inputname,
                panic("filename too long");
        memcpy(buf+last_dot, newext, extlen);
 }
-#endif
 
-static
-translation_unit_t *do_parsing(const char *fname)
+static translation_unit_t *do_parsing(const char *fname)
 {
        FILE *in = fopen(fname, "r");
        if(in == NULL) {
@@ -54,8 +119,7 @@ translation_unit_t *do_parsing(const char *fname)
        return unit;
 }
 
-static
-void lextest(const char *fname)
+static void lextest(const char *fname)
 {
        FILE *in = fopen(fname, "r");
        if(in == NULL) {
@@ -74,10 +138,59 @@ void lextest(const char *fname)
        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 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 create_firm_prog(translation_unit_t *unit)
+{
+       translation_unit_to_firm(unit);
+
+       int n_irgs = get_irp_n_irgs();
+       for(int i = 0; i < n_irgs; ++i) {
+               current_ir_graph = get_irp_irg(i);
+               dump("-start");
+       }
+}
+
 void write_fluffy_decls(translation_unit_t *unit);
 
 int main(int argc, char **argv)
 {
+       initialize_firm();
+
        init_symbol_table();
        init_tokens();
        init_lexer();
@@ -85,6 +198,7 @@ int main(int argc, char **argv)
        init_typehash();
        init_ast();
        init_parser();
+       init_ast2firm();
 
        if(argc > 2 && strcmp(argv[1], "--lextest") == 0) {
                lextest(argv[2]);
@@ -106,9 +220,18 @@ int main(int argc, char **argv)
        }
 
        for(int i = 1; i < argc; ++i) {
-               do_parsing(argv[i]);
+               const char *input = argv[i];
+               char        outfname[4096];
+
+               get_output_name(outfname, sizeof(outfname), input, ".s");
+
+               translation_unit_t *unit = do_parsing(input);
+               create_firm_prog(unit);
+               emit(input, outfname);
+               link(outfname, "a.out");
        }
 
+       exit_ast2firm();
        exit_parser();
        exit_ast();
        exit_typehash();