Save some PROGMEM with constexpr (#11798)

When possible, make `active_extruder` a `constexpr` to save some PROGMEM.
2018-09-10 23:09:26 -05:00
parent 4f883d5971
commit d882717d98
9 changed files with 43 additions and 25 deletions
--- a/Marlin/src/module/planner.cpp
+++ b/Marlin/src/module/planner.cpp
@ -1759,7 +1759,9 @@ bool Planner::_populate_block(block_t * const block, bool split_move,
    block->e_to_p_pressure = baricuda_e_to_p_pressure;
  #endif

-  block->active_extruder = extruder;
+  #if EXTRUDERS > 1
+    block->active_extruder = extruder;
+  #endif

  #if ENABLED(AUTO_POWER_CONTROL)
    if (block->steps[X_AXIS] || block->steps[Y_AXIS] || block->steps[Z_AXIS])