Internal Error: Sub-system: VRFX2, File: /quartus/synth/vrfx2/vrfx2_sgate.cpp, Line: 5306

Description

Due to a problem in the Intel® Quartus® Prime Pro Edition software version 18.1 and earlier, you may see this internal error in synthesis.

Resolution

This problem is fixed beginning with the Intel® Quartus® Prime Pro Edition software version 19.1.