On Wed, Feb 19, 2020 at 8:20 PM Luke Nelson [off-list ref] wrote:

This is an eBPF JIT for RV32G, adapted from the JIT for RV64G and
the 32-bit ARM JIT.

...

v2 -> v3:
  * Added support for far jumps / branches similar to RV64 JIT.
  * Added support for tail calls.
  * Cleaned up code with more optimizations and comments.
  * Removed special zero-extension instruction from BPF_ALU64
    case, pointed out by Jiong Wang.

v1 -> v2:
  * Added support for far conditional branches.
  * Added the zero-extension optimization pointed out by Jiong Wang.
  * Added more optimizations for operations with an immediate operand.

Cc: Jiong Wang <redacted>
Co-developed-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Luke Nelson <redacted>

Bjorn,

please review.