Elektronik article: Optimizing Code Speed: Update The RISC V Development Tools

One of the key benefits of using RISC-V is the flexibility of the architecture that allows OEMs and SoC vendors to develop custom cores with the exact specifications required by the application or product. With support for custom enhancements, IAR Systems enables these companies to fully leverage all of the embedded development toolchain capabilities to build applications based on custom cores.
article (in German): https://www.elektroniknet.de/markt-technik/embedded/update-der-risc-v-entwicklungs-tools-169139.html