Method and apparatus for high-level programs with general control flow

A method of configuring a programmable integrated circuit device to implement control flow at a current basic block of a set of function blocks, the method comprising:

• instantiating a virtual fabric on the programmable integrated circuit device, the virtual fabric comprising the function blocks comprising pre-compiled combinations of logic elements that perform specific operations, wherein a flow within the virtual fabric between the function blocks is configured at runtime;
• configuring the flow within the virtual fabric at runtime, wherein configuring the flow comprises:
• configuring a branch selector node within the current basic block to:
• receive at least one control signal, wherein the at least one control signal is associated with a respective previous basic block;
• select one of the at least one control signal based on one or more intended destinations for the at least one control signal;
• and
• provide the selected control signal to a data selector node within the current basic block;
• and
• configuring the data selector node to select a data signal based on the selected control signal, wherein the selected data signal is from the respective previous basic block that is associated with the selected control signal.