[PATCH] D12512: [libcxxabi] Manually align pointers in __cxa_allocate_exception - Fixes PR24604

[Joerg Sonnenberger via cfe-commits]

On Fri, Sep 04, 2015 at 09:28:39PM +0000, Eric Fiselier via cfe-commits wrote:
> EricWF added a comment.
> 
> In http://reviews.llvm.org/D12512#237175, @joerg wrote:
> 
> > Please don't commit this as is. Many platforms have posix_memalign or equivalent, which makes this both simpler and potentially without wasting memory. Compare e.g. http://reviews.llvm.org/D12001.
> 
> 
> Will do. Any advice on detecting posix_memalign? I don't see anything in the patch you pointed me to.

Provide a feature variable for it and set it by default. For Unix-like
systems, I think only Android wants to disable it by default. Not sure
about Windows and OSX.

Joerg