Demolition of 1.5"+ tile/concrete floor on second story
Like you stated: masonry bladed saw set to cut just above or below the concrete base. If you snap lines to show a 2 foot x  2 foot quadrant to cut with the saw will make it much easier to remove concrete. You will need to expose the sub-floor to begin so that a pinch bar or long pry bar can be slid under each section and fulcrumed up. Have several abrasive masonry wheels on hand as they wear-out quickly. Hint: if you pry the concrete slab off the sub-floor slightly than it only takes a slight tap to break it apart with minimal shock to the floor framing.