Duncan P. N. Exon Smith 78c0b35bf7 IR: Rewrite ConstantUniqueMap ... Rewrite `ConstantUniqueMap` to be more similar to `ConstantAggrUniqueMap`. - Use a `DenseMap` with custom MapInfo instead of a `std::map` with linear lookups and deletion. - Don't waste memory explicitly storing (heavyweight) keys. Only `ConstantExpr` and `InlineAsm` actually use this data structure, so I also updated them to use it. This code cleanup is a precursor to reducing RAUW traffic on `ConstantExpr` -- I felt badly adding a new (linear) call to `ConstantUniqueMap::FindExistingKey`, so this designs away the concern. A follow-up commit will transition the users of `ConstantAggrUniqueMap` over. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215957 91177308-0d34-0410-b5e6-96231b3b80d8		2014-08-19 00:42:32 +00:00
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llvm	IR: Rewrite ConstantUniqueMap	2014-08-19 00:42:32 +00:00
llvm-c	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00