ARM: Change mem address mode for array accesses.

Switch from:
  add IP, r[Array], r[Index], LSL #2
  ldr r0, [IP, #12]
To:
  add IP. r[Array], #12
  ldr r0, [IP, r[Index], LSL #2]

These is a base for the future TryExtractArrayAccessAddress
optimization port to arm.

Test: aosp_shamu-userdebug boots and passes "m test-art-target".
Change-Id: I6ab01ba3271a8f79599ddd91a6b63cd1b37d2d67
2 files changed