These Q1 results may be disappointing news to AMD stockholders, but they shouldn't be surprising. AMD didn't release any new products of note in that quarter; their CPUs have not been competitive in years, and their GPUs have been hammered by the combination of Maxwell and the big backlog of cheap used cards from the cryptomining bubble.
The rest of this year will be a lean one for AMD. Not much is slated for release; Carrizo and a couple of Pirate Islands GPUs are about it. Kaveri "refresh" barely qualifies as new; it's just rebinning. About the best AMD can hope for is to score a big design win with Carrizo. If they could convince Apple to put it in something, that could bring in much-needed revenue. Apple understands (as many posters on this board do not) that it is bad for OEMs and consumers if Intel or Nvidia have a monopoly, so they have supported AMD by incorporating their GPUs in products like the Mac Pro and Retina iMac.
Zen is going to be the make-or-break moment for AMD. If AMD can pull off IPC matching or exceeding Sandy Bridge, with the higher power efficiency of the 16nm FinFET process, they'll be back in the game. If they fail, they won't get another chance, and Samsung or some other company will be buying the scraps. While AMD is very unlikely to leapfrog Intel entirely, they can still make some very competitive products. A 16nm FinFET APU with four to eight Zen cores at 4 GHz, a GPU on par with Tonga, and 8GB of shared HBM would be a very impressive product - a gaming PC on a chip, something neither Intel nor Nvidia could match on their own. And since consoles seem to be AMD's biggest design win, it makes sense for them to organize their development efforts in that direction.