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This matches the data in clang which was added by Jakob Stoklund Olesen in r179596. Thanks for erikjv on irc for pointing me to the relevant documents: http://sparc.com/standards/64.psabi.1.35.ps.Z page 25: Every stack frame must be 16-byte aligned. http://sparc.com/standards/psABI3rd.pdf page 3-10: Although the architecture requires only word alignment, software convention and the operating system require every stack frame to be doubleword aligned. I tried to add a test, but it looks like sparc doesn't implement dynamic stack realignment. This will be tested in clang shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197646 91177308-0d34-0410-b5e6-96231b3b80d8
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