Do not set protected memory for all atomics

Bug: v8:12946
Change-Id: If62b67a47f63832e6edca749ce1a45cf3a85316d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743384
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81521}

src/compiler/backend/x64/instruction-selector-x64.cc

@@ -503,8 +503,10 @@ void InstructionSelector::VisitLoad(Node* node, Node* value,
       g.GetEffectiveAddressMemoryOperand(value, inputs, &input_count, reg_kind);
   InstructionCode code = opcode | AddressingModeField::encode(mode);
   if (node->opcode() == IrOpcode::kProtectedLoad ||
-      node->opcode() == IrOpcode::kWord32AtomicLoad ||
-      node->opcode() == IrOpcode::kWord64AtomicLoad) {
+      ((node->opcode() == IrOpcode::kWord32AtomicLoad ||
+        node->opcode() == IrOpcode::kWord64AtomicLoad) &&
+       (AtomicLoadParametersOf(node->op()).kind() ==
+        MemoryAccessKind::kProtected))) {
     code |= AccessModeField::encode(kMemoryAccessProtected);
   }
   Emit(code, 1, outputs, input_count, inputs, temp_count, temps);