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Author SHA1 Message Date
Chris Lattner
4002a1b6f1 Fix a nasty miscompilation of 176.gcc on linux/x86 where we synthesized 
a memset using 16-byte XMM stores, but where the stack realignment code
didn't work.  Until it does (PR2962) disable use of xmm regs in memcpy
and memset formation for linux and other targets with insufficiently
aligned stacks.

This is part of PR2888



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58317 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-28 05:49:35 +00:00