Hi! On Sat, Apr 18, 2020 at 11:12:15AM -0400, William Tambe via Gcc-help wrote: > In the machine description file, is there a way to tell GCC that a > memory load instruction already zero-extend such that it does not try > to apply zero-extension ? At least on a load-store architecture (like a usual RISC), you get best results if you make a separate pattern for that, and then let combine combine the zero_extend with the load. Segher