Russell King f9ff5018c1 ARM: net: bpf: improve 64-bit load immediate implementation ...

Rather than writing each 32-bit half of the 64-bit immediate value
separately when the register is on the stack:

  movw    r6, #45056      ; 0xb000
  movt    r6, #60979      ; 0xee33
  str     r6, [fp, #-44]  ; 0xffffffd4
  mov     r6, #0
  str     r6, [fp, #-40]  ; 0xffffffd8

arrange to use the double-word store when available instead:

  movw    r6, #45056      ; 0xb000
  movt    r6, #60979      ; 0xee33
  mov     r7, #0
  strd    r6, [fp, #-44]  ; 0xffffffd4

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

2018-07-13 15:26:41 +02:00

..

bpf_jit_32.c

ARM: net: bpf: improve 64-bit load immediate implementation

2018-07-13 15:26:41 +02:00

bpf_jit_32.h

ARM: net: bpf: use double-word load/stores where available

2018-07-12 20:45:23 +02:00

Makefile

ARM: 7259/3: net: JIT compiler for packet filters

2012-03-24 09:38:56 +00:00