Add experimental support for a threaded semantic checker to `-threaded-checker`

1 files changed, 12 insertions, 0 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 5222a0321..345642cc6 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -600,6 +600,7 @@ enum BuildFlagKind {
 	BuildFlag_NoEntryPoint,
 	BuildFlag_UseLLD,
 	BuildFlag_UseSeparateModules,
+	BuildFlag_ThreadedChecker,
 	BuildFlag_Vet,
 	BuildFlag_VetExtra,
 	BuildFlag_UseLLVMApi,
@@ -722,6 +723,7 @@ bool parse_build_flags(Array<String> args) {
 	add_flag(&build_flags, BuildFlag_NoEntryPoint,      str_lit("no-entry-point"),      BuildFlagParam_None, Command__does_check &~ Command_test);
 	add_flag(&build_flags, BuildFlag_UseLLD,            str_lit("lld"),                 BuildFlagParam_None, Command__does_build);
 	add_flag(&build_flags, BuildFlag_UseSeparateModules,str_lit("use-separate-modules"),BuildFlagParam_None, Command__does_build);
+	add_flag(&build_flags, BuildFlag_ThreadedChecker,   str_lit("threaded-checker"),    BuildFlagParam_None, Command__does_check);
 	add_flag(&build_flags, BuildFlag_Vet,               str_lit("vet"),                 BuildFlagParam_None, Command__does_check);
 	add_flag(&build_flags, BuildFlag_VetExtra,          str_lit("vet-extra"),           BuildFlagParam_None, Command__does_check);
 	add_flag(&build_flags, BuildFlag_UseLLVMApi,        str_lit("llvm-api"),            BuildFlagParam_None, Command__does_build);
@@ -1206,6 +1208,10 @@ bool parse_build_flags(Array<String> args) {
 							build_context.use_separate_modules = true;
 							break;
 
+						case BuildFlag_ThreadedChecker:
+							build_context.threaded_checker = true;
+							break;
+
 						case BuildFlag_Vet:
 							build_context.vet = true;
 							break;
@@ -1746,6 +1752,11 @@ void print_show_help(String const arg0, String const &command) {
 	}
 
 	if (check) {
+		print_usage_line(1, "-threaded-checker");
+		print_usage_line(1, "[EXPERIMENTAL]");
+		print_usage_line(2, "Multithread the semantic checker stage");
+		print_usage_line(0, "");
+
 		print_usage_line(1, "-vet");
 		print_usage_line(2, "Do extra checks on the code");
 		print_usage_line(2, "Extra checks include:");
@@ -1960,6 +1971,7 @@ int main(int arg_count, char const **arg_ptr) {
 	init_global_error_collector();
 	init_keyword_hash_table();
 	global_big_int_init();
+	init_type_mutex();
 
 	if (!check_env()) {
 		return 1;