Xilinx has ILAs (integrated logic analyzer) which is similar. In both cases, they are just logic analyzers.
You never would deploy a product with signal tap or ILAs, what would be the purpose? 1) You usually read out the ILA/Signal Tap stream using JTAG. The newer Ultrascales do have a core that allows you to not have to do this, but in most cases, JTAG is what you use. 2) For debugging, you can always load a debugging bistream with your ILA in the circuit. 3) Bottom line, ILAs take up space and are only useful for slower signals unless you want to use precious BRAMs.
