Hi Jozef, On Tue, Oct 08, 2019 at 11:39:57AM +0100, Jozef Lawrynowicz wrote: > +;; ------------------------ > +;; ZERO EXTEND INSTRUCTIONS > +;; Byte-writes to registers clear bits 19:8 > +;; * Byte-writes to memory do not affect bits 15:8 > +;; Word-writes to registers clear bits 19:16 > +;; PSImode writes to memory clear bits 16:4 of the second memory word
Should that be 15:4 instead? > +; FIXME many of these should be unnnecessary once combine deals with > +; (sign_extend (zero_extend)) or (sign_extend (subreg)) BZ 91865. I have looked at it some time ago, and it is quite hard :-/ It's not forgotten though! Segher
