From 04ea561fc88433015829718923ed2e8e5ea703e2 Mon Sep 17 00:00:00 2001
From: Yulong Wang <7679871+fs-eire@users.noreply.github.com>
Date: Tue, 16 May 2023 11:05:56 -0700
Subject: [PATCH] [js/webgpu] throw error when WebGPU=ON and SIMD=OFF (#15924)

### Description
throw error when WebGPU=ON and SIMD=OFF
---
 js/web/lib/wasm/jsep/init.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/js/web/lib/wasm/jsep/init.ts b/js/web/lib/wasm/jsep/init.ts
index 93d390dd64..dd875cda12 100644
--- a/js/web/lib/wasm/jsep/init.ts
+++ b/js/web/lib/wasm/jsep/init.ts
@@ -98,6 +98,10 @@ class ComputeContextImpl implements ComputeContext {
 export const init = async(module: OrtWasmModule, env: Env): Promise<void> => {
   const init = module.jsepInit;
   if (init && navigator.gpu) {
+    if (!env.wasm.simd) {
+      throw new Error(
+          'Not supported for WebGPU=ON and SIMD=OFF. Please set `env.wasm.simd` to true when using WebGPU EP');
+    }
     const backend = new WebGpuBackend();
     await backend.initialize(env);