------- Comment #2 from ramana at gcc dot gnu dot org 2010-01-29 23:32 ------- (In reply to comment #1) > Could be done in a peephole if there's a scratch available for the > destination. >
We already do this for Thumb1 don't we ? Turning on *tlobits_cbranch and the appropriate bit in arm.c should be enough but GAS doesn't want to assemble lsl r2,r3, #1 as a 16 bit instruction yet. cheers Ramana -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42879
