From abaef3f9c8dc5612730cab26b9ac00e2a81c325a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petri=20H=C3=A4kkinen?= <petrih@rmd.remedy.fi>
Date: Fri, 10 Nov 2023 11:59:42 +0200
Subject: [PATCH] Add LuauVectorLiterals fast flag

---
 Compiler/src/BuiltinFolding.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Compiler/src/BuiltinFolding.cpp b/Compiler/src/BuiltinFolding.cpp
index b9b64d7b..fe0b9284 100644
--- a/Compiler/src/BuiltinFolding.cpp
+++ b/Compiler/src/BuiltinFolding.cpp
@@ -5,6 +5,8 @@
 
 #include <math.h>
 
+LUAU_FASTFLAGVARIABLE(LuauVectorLiterals, false)
+
 namespace Luau
 {
 namespace Compile
@@ -470,7 +472,10 @@ Constant foldBuiltin(int bfid, const Constant* args, size_t count)
         break;
 
     case LBF_VECTOR:
-        if (count == 3 && args[0].type == Constant::Type_Number && args[1].type == Constant::Type_Number && args[2].type == Constant::Type_Number)
+        if (FFlag::LuauVectorLiterals && count == 3 &&
+            args[0].type == Constant::Type_Number &&
+            args[1].type == Constant::Type_Number &&
+            args[2].type == Constant::Type_Number)
             return cvector(args[0].valueNumber, args[1].valueNumber, args[2].valueNumber);
         break;
     }