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Add a FIXME comment.
llvm-svn: 25635
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@ -1932,6 +1932,7 @@ public:
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// Don't fold any node which reads or writes a flag and has multiple uses.
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// FIXME: we really need to separate the concepts of flag and "glue". Those
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// real flag results, e.g. X86CMP output, can have multiple uses.
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// FIXME: If the incoming flag is optional. Then it is ok to fold it.
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if (!EmittedCheck &&
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(PatternHasProperty(N, SDNodeInfo::SDNPInFlag, ISE) ||
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PatternHasProperty(N, SDNodeInfo::SDNPOptInFlag, ISE) ||
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