Jyun-Siang Huang

Profile-Guided Optimization for Indirect Branch in an LLVM-Based Binary Translator

A binary translator emulates the binary files of the source instruction set by the target instruction set. Emulating an indirect branch requires mapping a source program counter address to a target program counter address.

• The work translates AArch64 binary to RISC-V binary and runs on the RISC-V board.
• Develop the profile-guided optimization for indirect branch
  • Collect and analyze the execution frequency of each destination for each source indirect branch instruction to construct address mapping tables.
  • Accelerate the process of finding the target address as branch destination when emulating a source indirect branch instruction.