Reid Kleckner 9688239469 Round up the size of byval arguments to MinAlign
Otherwise we can end up with an argument frame size that is not a
multiple of stack slot size, which is very awkward.

This fixes PR20547, which was a bug in x86_64 Sys V vararg handling.
However, it's much easier to test this with x86 callee-cleanup
functions, which previously ended in "retl $6" instead of "retl $8".

This does affect behavior of all backends, but it presumably fixes the
same bug in all of them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214980 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-06 17:57:23 +00:00
..
2014-07-29 22:57:59 +00:00
2014-08-06 16:06:41 +00:00
2014-06-06 09:06:25 +00:00