From 59ba2594dedac02ad2ef7bc049bd78f5412e1a92 Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Tue, 3 Dec 2024 22:36:46 -0800
Subject: Fix `SpvExecutionModeOutputLinesEXT`. (#5740)

---
 source/slang/slang-check-decl.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'source/slang/slang-check-decl.cpp')

diff --git a/source/slang/slang-check-decl.cpp b/source/slang/slang-check-decl.cpp
index e4206827f..4a4ade047 100644
--- a/source/slang/slang-check-decl.cpp
+++ b/source/slang/slang-check-decl.cpp
@@ -8789,7 +8789,8 @@ void SemanticsDeclHeaderVisitor::checkMeshOutputDecl(VarDeclBase* varDecl)
         nullptr,
         ConstantFoldingKind::LinkTime,
         getSink());
-
+    if (!index)
+        return;
     Type* d = m_astBuilder->getMeshOutputTypeFromModifier(modifier, base, index);
     varDecl->type.type = d;
 }
-- 
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