From af1046aca464a5cf4c0c4f8e5dde1852a528c837 Mon Sep 17 00:00:00 2001
From: Ali Cheraghi <alichraghi@proton.me>
Date: Sat, 27 Jun 2026 11:54:00 +0330
Subject: [PATCH] Type: allow vectors in externs for SPIR-V target

Vectors are well-defined in SPIR-V unlike other targets, and they are essential for almost any shader interface because arrays are incompatible with e.g. Vulkan data formats (`gl_Position`, vertex attributes, color outputs, etc.)
---
 src/Type.zig | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Type.zig b/src/Type.zig
index 546953b307df5bcb37e99942655801f6b5910676..7c45eda413906fc41865d3392eba198e73e1cdcf 100644
--- a/src/Type.zig
+++ b/src/Type.zig
@@ -3087,7 +3087,10 @@ pub fn validateExtern(ty: Type, position: ExternPosition, zcu: *const Zcu) bool
         .frame,
         => false,
 
-        .vector => position == .param_ty or position == .ret_ty,
+        .vector => {
+            if (zcu.getTarget().cpu.arch.isSpirV()) return true;
+            return position == .param_ty or position == .ret_ty;
+        },
 
         .void => switch (position) {
             .ret_ty,
-- 
2.54.0