On Mon, Jul 16, 2018 at 09:52:12PM +0200, Marcel Keller wrote: > Hi, > > I've found that the attached program, which supposedly adds 1 and 0 as > 128-bit numbers using inline assembly, outputs 2^64 + 1 instead when > compiled with g++ 7 or 8 and at least -O1. Am I doing something wrong, Operand 0 should be marked as earlyclobber. > or is this a compiler bug? The answer to that is almost always "no". Segher
