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Sanjay Patel
8a6197a968
Fixing MinSize attribute handling was discussed in D11363. This is a prerequisite patch to doing that. The handling of OptSize when lowering mem* functions was broken on Darwin because it wants to ignore -Os for these cases, but the existing logic also made it ignore -Oz (MinSize). The Linux change demonstrates a widespread problem. The backend doesn't usually recognize the MinSize attribute by itself; it assumes that if the MinSize attribute exists, then the OptSize attribute must also exist. Fixing this more generally will be a follow-on patch or two. Differential Revision: http://reviews.llvm.org/D11568 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243693 91177308-0d34-0410-b5e6-96231b3b80d8
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