[wasm][liftoff] Fix storing of tagged pointer in tracing

Change-Id: Ibc3b7d73ce92f3d0f848e94b1266c99a78279392
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3259661
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77761}

src/wasm/baseline/liftoff-compiler.cc

@@ -2246,9 +2246,13 @@ class LiftoffCompiler {
       ValueKind return_kind = decoder->sig_->GetReturn(0).kind();
       LiftoffRegister return_reg =
           __ LoadToRegister(__ cache_state()->stack_state.back(), pinned);
+      if (is_reference(return_kind)) {
+        __ StoreTaggedPointer(info.gp(), no_reg, 0, return_reg, pinned);
+      } else {
         __ Store(info.gp(), no_reg, 0, return_reg,
                  StoreType::ForValueKind(return_kind), pinned);
       }
+    }
     // Put the parameter in its place.
     WasmTraceExitDescriptor descriptor;
     DCHECK_EQ(0, descriptor.GetStackParameterCount());