Re: [PATCH bpf-next 0/6] Few x64 jit improvements to shrink image size

[Alexei Starovoitov]

On Sat, Feb 24, 2018 at 01:07:57AM +0100, Daniel Borkmann wrote:
> Couple of minor improvements to the x64 JIT I had still around from
> pre merge window in order to shrink the image size further. Added
> test cases for kselftests too as well as running Cilium workloads on
> them w/o issues.

Applied to bpf-next, thanks Daniel.

[PATCH bpf-next 0/6] Few x64 jit improvements to shrink image size

[Daniel Borkmann]

Couple of minor improvements to the x64 JIT I had still around from
pre merge window in order to shrink the image size further. Added
test cases for kselftests too as well as running Cilium workloads on
them w/o issues.

Thanks!

Daniel Borkmann (6):
  bpf, x64: save one byte per shl/shr/sar when imm is 1
  bpf, x64: save several bytes by using mov over movabsq when possible
  bpf, x64: save several bytes when mul dest is r0/r3 anyway
  bpf, x64: save few bytes when mul is in alu32
  bpf, x64: save 5 bytes in prologue when ebpf insns came from cbpf
  bpf: add various jit test cases

 arch/x86/net/bpf_jit_comp.c | 219 +---
 tools/testing/selftests/bpf/test_verifier.c |  89 +++
 2 files changed, 221 insertions(+), 87 deletions(-)

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2.9.5