powerpc/ebpf32: Rework 64 bits shifts to avoid tests and branches

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Re-implement BPF_ALU64 | BPF_{LSH/RSH/ARSH} | BPF_X with branchless
implementation copied from misc_32.S.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/03167350b05b2fe8b741e53363ee37709d0f878d.1618227846.git.christophe.leroy@csgroup.eu

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Christophe Leroy 2021-04-12 11:44:17 +00:00 • committed by Michael Ellerman

parent d228cc4969

commit e7de0023e1

1 changed files with 19 additions and 20 deletions

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arch/powerpc/net/bpf_jit_comp32.c

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