tree 1907bdacf4a6eddc463c58b108e2bb4192b3540e
parent 96a2e340f381ac4dae270f0fe0a8d79fad748c4d
author Steinar H. Gunderson <sesse@google.com> 1451908291 +0100
committer Steinar H. Gunderson <sesse@google.com> 1451908291 +0100

Make UNALIGNED_LOAD16/32 on ARMv7 go through an explicitly unaligned struct,
to avoid the compiler coalescing multiple loads into a single load instruction
(which only work for aligned accesses).

A typical example where GCC would coalesce:

  uint8* p = ...;
  uint32 a = UNALIGNED_LOAD32(p);
  uint32 b = UNALIGNED_LOAD32(p + 4);
  uint32 c = a | b;