Daniel Borkmann de0a444dda bpf, x86: small optimization in alu ops with imm ... For the BPF_REG_0 (BPF_REG_A in cBPF, respectively), we can use the short form of the opcode as dst mapping is on eax/rax and thus save a byte per such operation. Added to add/sub/and/or/xor for 32/64 bit when K immediate is used. There may be more such low-hanging fruit to add in future as well. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2018-01-19 18:37:00 -08:00
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bpf_jit.S	bpf: change x86 JITed program stack layout	2017-05-31 19:29:48 -04:00
bpf_jit_comp.c	bpf, x86: small optimization in alu ops with imm	2018-01-19 18:37:00 -08:00
Makefile	objtool, x86: Add several functions and files to the objtool whitelist	2017-06-30 10:19:19 +02:00