compiler: Skip copy-backs overwritten by a later one to the same slot - #3050

compiler: Skip copy-backs overwritten by a later one to the same slot#3050

JDBetteridge merged 3 commits into

maindevitocodes/devito:mainfrom

fix-buffering-same-slotdevitocodes/devito:fix-buffering-same-slotCopy head branch name to clipboard