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| H A D | jit.c | 4987eacc Thu Dec 20 00:13:08 CST 2018 Jakub Kicinski <jakub.kicinski@netronome.com> nfp: bpf: optimize codegen for JSET with a constant
The top word of the constant can only have bits set if sign
extension set it to all-1, therefore we don't really have to
mask the top half of the register. We can just OR it into
the result as is.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
4987eacc Thu Dec 20 00:13:08 CST 2018 Jakub Kicinski <jakub.kicinski@netronome.com> nfp: bpf: optimize codegen for JSET with a constant
The top word of the constant can only have bits set if sign
extension set it to all-1, therefore we don't really have to
mask the top half of the register. We can just OR it into
the result as is.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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