bitwarden-browser/patches/argon2-browser+1.18.0.patch

diff --git a/node_modules/argon2-browser/lib/argon2.js b/node_modules/argon2-browser/lib/argon2.js
index ffa77a5..b498e2d 100644
--- a/node_modules/argon2-browser/lib/argon2.js
+++ b/node_modules/argon2-browser/lib/argon2.js
@@ -78,16 +78,27 @@
         if (global.loadArgon2WasmBinary) {
             return global.loadArgon2WasmBinary();
         }
+
+        const simd = checkIfSIMDSupported();
+
         if (typeof require === 'function') {
-            return Promise.resolve(require('../dist/argon2.wasm')).then(
-                (wasmModule) => {
-                    return decodeWasmBinary(wasmModule);
-                }
-            );
+            if (simd) {
+                return Promise.resolve(require('../dist/argon2-simd.wasm')).then(
+                    (wasmModule) => {
+                        return decodeWasmBinary(wasmModule);
+                    }
+                );
+            } else {
+                return Promise.resolve(require('../dist/argon2.wasm')).then(
+                    (wasmModule) => {
+                        return decodeWasmBinary(wasmModule);
+                    }
+                );
+            }
         }
         const wasmPath =
             global.argon2WasmPath ||
-            'node_modules/argon2-browser/dist/argon2.wasm';
+            'node_modules/argon2-browser/dist/argon2' + (simd? "-simd" : "") + '.wasm';
         return fetch(wasmPath)
             .then((response) => response.arrayBuffer())
             .then((ab) => new Uint8Array(ab));
@@ -354,6 +365,24 @@
         }
     }
 
+    // ref: https://stackoverflow.com/a/47880734/1090359
+    // ref: https://github.com/GoogleChromeLabs/wasm-feature-detect/blob/main/src/detectors/simd/module.wat (translated with wat2wasm)
+    function checkIfSIMDSupported() {
+        try {
+            if (typeof WebAssembly === "object" && typeof WebAssembly.instantiate === "function") {
+                const module = new WebAssembly.Module(
+                    Uint8Array.of(0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x01, 0x05, 0x01, 0x60, 0x00, 0x01, 0x7b, 0x03, 0x02, 0x01, 0x00, 0x0a, 0x0a, 0x01, 0x08, 0x00, 0x41, 0x00, 0xfd, 0x0f, 0xfd, 0x62, 0x0b)
+                );
+                if (module instanceof WebAssembly.Module) {
+                    return new WebAssembly.Instance(module) instanceof WebAssembly.Instance;
+                }
+            }
+        } catch {
+            return false;
+        }
+        return false;
+    }
+
     return {
         ArgonType,
         hash: argon2Hash,