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ZCC

  • Based on the LLVM open-source framework
  • Supports C/C++ language standards
  • Support RISC-V ISAs, including extensions and vendor extensions from Andes, Nuclei and XuanTie
  • Supports Windows and Linux platforms
  • Offers tailored editions and customizable services

ZCC Community

ZCC Commercial

ZCC FuSa

Core Features
Optimization
Customization
Custom instruction support and performance optimization
Custom instruction support and performance optimization
Functional Safety
ISO 26262 certification and functional safety package
License
Free non-commercial use
Tailored commercial license
Tailored commercial license
Support
Developer forum
Technical support
Technical support

ZCC Performance on RISC-V Cores

Benchmark results demonstrate the ZCC 4.0.0 toolchain's ability to optimize system performance across hardware platforms from multiple RISC-V partners, including Andes, HPMicro, Nuclei and XuanTie. Compared to the open-source GNU GCC 14.2.0 toolchain:

ZCC 4.0.0 can deliver an average performance improvement of 22% and a 20% better code density on CoreMark;

ZCC 4.0.0 can deliver an average performance improvement of 35% and a 42% better code density on the Dhrystone benchmark, under ground rules.