deps: V8: backport 85b390089e51

thibaudmichaud · marco-ippolito · commit ec11f3c1d500 · 2026-05-11T14:43:23.000+02:00
Original commit message: [wasm][eh] Fix getArg() when exception has an S128 We cannot read an S128 exception value from JS, but we can read a value at a higher index in the exception. So accept S128 values when we compute the encoded index. R=mliedtke@chromium.org Fixed: 403675482 Change-Id: I7cc0238310863b6d579fcbe0a216ddce6f760c8b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/6367014 Reviewed-by: Matthias Liedtke <mliedtke@chromium.org> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> Cr-Commit-Position: refs/heads/main@{#99305} Refs: v8/v8@85b390089e51 PR-URL: #62783 Reviewed-By: Xuguang Mei <meixuguang@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
diff --git a/common.gypi b/common.gypi
@@ -38,7 +38,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.55',
+    'v8_embedder_string': '-node.56',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/v8/src/wasm/wasm-js.cc b/deps/v8/src/wasm/wasm-js.cc
@@ -2754,12 +2754,14 @@ void WebAssemblyExceptionGetArgImpl(
       case i::wasm::kRefNull:
         decode_index++;
         break;
+      case i::wasm::kS128:
+        decode_index += 8;
+        break;
       case i::wasm::kRtt:
       case i::wasm::kI8:
       case i::wasm::kI16:
       case i::wasm::kVoid:
       case i::wasm::kBottom:
-      case i::wasm::kS128:
         UNREACHABLE();
     }
   }
