platformio build fix
@@ -314,7 +314,7 @@ M3Result PreserveRegisterIfOccupied (IM3Compilation o, u8 i_registerType)
u8 type = GetStackBottomType (o, stackIndex);
// and point to a exec slot
- u16 slot;
+ u16 slot = c_slotUnused;
_ (AllocateSlots (o, & slot, type));
o->wasmStack [stackIndex] = slot;
