From c4a2c52411fea4db28fe69a1dc01c9ad1ffd542e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tyge=20L=C3=B8vset?= <tylo@norceresearch.no>
Date: Sun, 4 Jul 2021 13:32:55 +0200
Subject: [PATCH] Added __faststorefence() MSVC intrinsic (required e.g. by
 sqlite3).

---
 lib/libtcc1.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/libtcc1.c b/lib/libtcc1.c
index d6d8dd28..ae94af17 100644
--- a/lib/libtcc1.c
+++ b/lib/libtcc1.c
@@ -631,3 +631,11 @@ long long __fixxfdi (long double a1)
 const float __mzerosf = -0.0;
 const double __mzerodf = -0.0;
 #endif
+
+#if defined _WIN64
+/* MSVC x64 intrinsic */
+void __faststorefence(void)
+{
+    __asm__("lock; orl $0,(%rsp)");
+}
+#endif