Intel® Quartus® Prime Standard Edition User Guide: Design Recommendations

ID 683323
Date 9/24/2018
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2.6.6.1. If Performance is Important, Optimize for Speed

To minimize area and depth of levels of logic, synthesis tools flatten XOR gates.

By default, Intel® Quartus® Prime Standard Edition integrated synthesis targets area optimization for XOR gates. Therefore, for more focus on depth reduction, set the synthesis optimization technique to speed.

Note: Flattening for depth sometimes causes a significant increase in area.