From 843eaf8893e3a7df9645c0bcba86c71a01a14765 Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Tue, 18 Apr 2023 17:20:50 +0100
Subject: Fix race condition with -use-separate-modules due to type
 determination

---
 src/llvm_backend_general.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/llvm_backend_general.cpp')

diff --git a/src/llvm_backend_general.cpp b/src/llvm_backend_general.cpp
index aa887418f..7d2f574fe 100644
--- a/src/llvm_backend_general.cpp
+++ b/src/llvm_backend_general.cpp
@@ -1498,6 +1498,9 @@ gb_internal LLVMTypeRef lb_type_internal_for_procedures_raw(lbModule *m, Type *t
 	type = base_type(original_type);
 	GB_ASSERT(type->kind == Type_Proc);
 
+	mutex_lock(&m->func_raw_types_mutex);
+	defer (mutex_unlock(&m->func_raw_types_mutex));
+
 	LLVMTypeRef *found = map_get(&m->func_raw_types, type);
 	if (found) {
 		return *found;
@@ -2157,6 +2160,9 @@ gb_internal LLVMTypeRef lb_type_internal(lbModule *m, Type *type) {
 gb_internal LLVMTypeRef lb_type(lbModule *m, Type *type) {
 	type = default_type(type);
 
+	mutex_lock(&m->types_mutex);
+	defer (mutex_unlock(&m->types_mutex));
+
 	LLVMTypeRef *found = map_get(&m->types, type);
 	if (found) {
 		return *found;
-- 
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