Dimitry Andric 9dbab393d9 Pull in r280705 from upstream llvm trunk (by Krzysztof Parzyszek):
[PPC] Claim stack frame before storing into it, if no red zone is
  present

  Unlike PPC64, PPC32/SVRV4 does not have red zone. In the absence of
  it there is no guarantee that this part of the stack will not be
  modified by any interrupt. To avoid this, make sure to claim the
  stack frame first before storing into it.

  This fixes https://llvm.org/bugs/show_bug.cgi?id=26519.

  Differential Revision: https://reviews.llvm.org/D24093
2016-09-10 16:51:39 +00:00
..