Fixed a bug in dynamic allocation memory on stack.
The alignment of allocated space was wrong, see Bugzila 17345.

Done by Zvi Rackover <zvi.rackover@intel.com>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192573 91177308-0d34-0410-b5e6-96231b3b80d8