Allow to specify certain programs

spec.py

@@ -36,7 +36,7 @@ def identify_suite():
 	exit(-1)
 SPEC_SUITE = identify_suite()
 
-parser = optparse.OptionParser(version=SCRIPT_VERSION)
+parser = optparse.OptionParser(version=SCRIPT_VERSION, usage="Usage: %prog [options] [programs]")
 parser.add_option("--config-only", action="store_true", default=False,
 		help="Just generate config file, but do not build or run")
 parser.add_option("--build-only", action="store_true", default=False,
@@ -344,8 +344,16 @@ BENCHMARK_LANGUAGES = [
 	("SPEC CPU2006", "482.sphinx3", "c"),
 ]
 
-def filter_progs(options):
-	for suite, prog, langs in BENCHMARK_LANGUAGES:
+def filter_progs(options,args):
+	if args:
+		programs = list()
+		for progt in BENCHMARK_LANGUAGES:
+			suite, prog, langs = progt
+			if prog in args:
+				programs.append(progt)
+	else:
+		programs = BENCHMARK_LANGUAGES
+	for suite, prog, langs in programs:
 		if suite != SPEC_SUITE:
 			continue
 		if options.no_cpp and "cpp" in langs:
@@ -419,7 +427,7 @@ if __name__ == "__main__":
 	fh.close()
 	if options.config_only:
 		exit(0)
-	progs = " ".join(filter_progs(options))
+	progs = " ".join(filter_progs(options,args))
 	cmd = "env bash -l -c 'source shrc && runspec %s -c generated'" % progs
 	os.system(cmd)