- if(strncmp(arg, "-o", 2) == 0) {
- GET_ARG_AFTER(outname, "-o");
- } else if(strcmp(arg, "-c") == 0) {
- mode = CompileAssemble;
- } else if(strcmp(arg, "-S") == 0) {
- mode = Compile;
- } else if(strcmp(arg, "--gcc") == 0) {
- c_mode |= _GNUC;
- } else if(strcmp(arg, "--no-gcc") == 0) {
- c_mode &= ~_GNUC;
- } else if(strcmp(arg, "--ms") == 0) {
- c_mode |= _MS;
- } else if(strcmp(arg, "--signed-chars") == 0) {
- char_is_signed = true;
- } else if(strcmp(arg, "--unsigned-chars") == 0) {
- char_is_signed = false;
- } else if(strcmp(arg, "--strict") == 0) {
- strict_mode = true;
- } else if(strcmp(arg, "--no-ms") == 0) {
- c_mode &= ~_MS;
- } 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, "--version") == 0) {
- firm_version_t ver;
- firm_get_version(&ver);
- printf("cparser (%d.%d %s) using libFirm (%d.%d", 0, 1, cparser_REVISION, ver.major, ver.minor);
- if(ver.revision[0] != 0) {
- putchar(' ');
- fputs(ver.revision, stdout);
- }
- if(ver.build[0] != 0) {
- putchar(' ');
- fputs(ver.build, stdout);
- }
- puts(")\n");
- exit(EXIT_SUCCESS);
- } else if(strcmp(arg, "-fsyntax-only") == 0) {
- mode = ParseOnly;
- } else if(strncmp(arg, "-I", 2) == 0) {
- const char *opt;
- GET_ARG_AFTER(opt, "-I");
- obstack_printf(&cppflags_obst, " -I%s", opt);
- } else if(strncmp(arg, "-D", 2) == 0) {
- const char *opt;
- GET_ARG_AFTER(opt, "-D");
- obstack_printf(&cppflags_obst, " -D%s", opt);
- } else if(strcmp(arg, "--dump-function") == 0) {
- ++i;
- if(i >= argc) {
- fprintf(stderr, "error: "
- "expected argument after '--dump-function'\n");
- argument_errors = true;
- break;
- }
- dumpfunction = argv[i];
- mode = CompileDump;
- } else if(strcmp(arg, "-v") == 0) {
- verbose = 1;
- } else if(arg[0] == '-' && arg[1] == 'f') {
- const char *opt;
- GET_ARG_AFTER(opt, "-f");
-
- if(strcmp(opt, "omit-frame-pointer") == 0) {
- firm_be_option("omitfp");
- } else if(strcmp(opt, "no-omit-frame-pointer") == 0) {
- firm_be_option("omitfp=no");
- } else {
- int res = firm_option(opt);
+ if(arg[0] != '-')
+ continue;
+
+ const char *option = &arg[1];
+ if(option[0] == 'O') {
+ sscanf(&option[1], "%d", &opt_level);
+ }
+ }
+
+ /* apply optimisation level */
+ switch(opt_level) {
+ case 0:
+ set_option("no-opt");
+ break;
+ case 1:
+ set_option("no-inline");
+ break;
+ default:
+ case 4:
+ set_option("strict-aliasing");
+ /* use_builtins = true; */
+ /* fallthrough */
+ case 3:
+ set_option("cond-eval");
+ set_option("if-conv");
+ /* fallthrough */
+ case 2:
+ set_option("inline");
+ set_option("deconv");
+ set_be_option("omitfp");
+ break;
+ }
+
+#ifdef __APPLE__
+ /* Darwin expects the stack to be aligned to 16byte boundary */
+ firm_be_option("ia32-stackalign=4");
+#endif
+
+ /* parse rest of options */
+ filetype_t forced_filetype = FILETYPE_AUTODETECT;
+ bool help_displayed = false;
+ bool argument_errors = false;
+ for(int i = 1; i < argc; ++i) {
+ const char *arg = argv[i];
+ if(arg[0] == '-' && arg[1] != 0) {
+ /* an option */
+ const char *option = &arg[1];
+ if(option[0] == 'o') {
+ GET_ARG_AFTER(outname, "-o");
+ } else if(option[0] == 'g') {
+ set_be_option("debuginfo=stabs");
+ set_be_option("omitfp=no");
+ set_be_option("ia32-nooptcc=yes");
+ } else if(SINGLE_OPTION('c')) {
+ mode = CompileAssemble;
+ } else if(SINGLE_OPTION('E')) {
+ mode = PreprocessOnly;
+ } else if(SINGLE_OPTION('S')) {
+ mode = Compile;
+ } else if(option[0] == 'O') {
+ continue;
+ } else if(option[0] == 'I') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-I");
+ add_flag(&cppflags_obst, "-I%s", opt);
+ } else if(option[0] == 'D') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-D");
+ add_flag(&cppflags_obst, "-D%s", opt);
+ } else if(option[0] == 'U') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-U");
+ add_flag(&cppflags_obst, "-U%s", opt);
+ } else if(option[0] == 'l') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-l");
+ add_flag(&ldflags_obst, "-l%s", opt);
+ } else if(option[0] == 'L') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-L");
+ add_flag(&ldflags_obst, "-L%s", opt);
+ } else if(SINGLE_OPTION('v')) {
+ verbose = 1;
+ } else if(SINGLE_OPTION('w')) {
+ inhibit_all_warnings = true;
+ } else if(option[0] == 'x') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-x");
+ forced_filetype = get_filetype_from_string(opt);
+ if (forced_filetype == FILETYPE_UNKNOWN) {
+ fprintf(stderr, "Unknown language '%s'\n", opt);
+ argument_errors = true;
+ }
+ } else if (streq(option, "M")) {
+ mode = PreprocessOnly;
+ add_flag(&cppflags_obst, "-M");
+ } else if (streq(option, "MMD") ||
+ streq(option, "MD")) {
+ construct_dep_target = true;
+ add_flag(&cppflags_obst, "-%s", option);
+ } else if(streq(option, "MM") ||
+ streq(option, "MP")) {
+ add_flag(&cppflags_obst, "-%s", option);
+ } else if (streq(option, "MT") ||
+ streq(option, "MQ") ||
+ streq(option, "MF")) {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-MT");
+ add_flag(&cppflags_obst, "-%s", option);
+ add_flag(&cppflags_obst, "%s", opt);
+ } else if (streq(option, "pipe")) {
+ /* here for gcc compatibility */
+ } else if (option[0] == 'f') {
+ char const *orig_opt;
+ GET_ARG_AFTER(orig_opt, "-f");
+
+ if (strstart(orig_opt, "align-loops=") ||
+ strstart(orig_opt, "align-jumps=") ||
+ strstart(orig_opt, "align-functions=")) {
+ fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
+ } else {
+ char const *opt = orig_opt;
+ bool truth_value = true;
+ if (opt[0] == 'n' && opt[1] == 'o' && opt[2] == '-') {
+ truth_value = false;
+ opt += 3;
+ }
+
+ if (streq(opt, "dollars-in-identifiers")) {
+ allow_dollar_in_symbol = truth_value;
+ } if (streq(opt, "builtins")) {
+ use_builtins = truth_value;
+ } else if (streq(opt, "short-wchar")) {
+ opt_short_wchar_t = truth_value;
+ } else if (streq(opt, "syntax-only")) {
+ mode = truth_value ? ParseOnly : CompileAssembleLink;
+ } else if (streq(opt, "omit-frame-pointer")) {
+ set_be_option(truth_value ? "omitfp" : "omitfp=no");
+ } else if (streq(opt, "strength-reduce")) {
+ firm_option(truth_value ? "strength-red" : "no-strength-red");
+ } else if (streq(opt, "fast-math") ||
+ streq(opt, "jump-tables") ||
+ streq(opt, "unroll-loops") ||
+ streq(opt, "expensive-optimizations") ||
+ streq(opt, "common") ||
+ streq(opt, "PIC") ||
+ streq(opt, "align-loops") ||
+ streq(opt, "align-jumps") ||
+ streq(opt, "align-functions")) {
+ fprintf(stderr, "ignoring gcc option '-f%s'\n", orig_opt);
+ } else {
+ int res = firm_option(orig_opt);
+ if (res == 0) {
+ fprintf(stderr, "error: unknown Firm option '-f%s'\n",
+ orig_opt);
+ argument_errors = true;
+ continue;
+ } else if (res == -1) {
+ help_displayed = true;
+ }
+ }
+ }
+ } else if (option[0] == 'b') {
+ const char *opt;
+ GET_ARG_AFTER(opt, "-b");
+ int res = firm_be_option(opt);