what does "-tag" keyword refer to in a .qsf file?

[Ozzuu]

I am comparing .qsf files of two Quartus projects. I need to understand what does the keyword ''-tag" mean? Does it refer to the name of the .tcl script that was run? How do I figure out from .tcl file, whether or not .tcl script generated by Qsys was run?

[KennyT_Intel]

yes, those -tag was created by the tcl command. You can run the tcl script with tools -> tcl scripts. For those tag example, you can refer to https://github.com/ShepardSiegel/ocpi/blob/master/coregen/ddr3_s4_uniphy/ddr3_s4_uniphy_example_desi...