On 12/02/2019 01:30, Jonas Devlieghere via lldb-commits wrote:
Author: jdevlieghere
Date: Mon Feb 11 16:30:21 2019
New Revision: 353778
URL: http://llvm.org/viewvc/llvm-project?rev=353778&view=rev
Log:
Define _ENABLE_EXTENDED_ALIGNED_STORAGE on Windows.
Apparently there are multiple places where MSVC complains about
instantiations with extended aligment. I think it's better to define
`_ENABLE_EXTENDED_ALIGNED_STORAGE` as suggested by the error message.
I don't have access to a Windows machine so this is all speculative.
I think it would be worth investigating where is this large alignment
coming from (my guess: something inside the RegisterContextDarwin
structs). We've had a case in the past where we were heap-allocating a
struct with a 64-byte alignment. MSVC would give a warning there, but
gcc&clang would silently under-align the result.
In that case, the large alignment was actually unneeded, so I fixed both
issues by just lowering it. I suspect something similar may be possible
here.
pl
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