Duncan P. N. Exon Smith 529ecc85ce ADT: Split out iplist_impl from iplist, NFC ... Split out iplist_impl from iplist, and change SymbolTableList to inherit directly from iplist_impl. This makes it more straightforward to add new template paramaters to iplist [*]: - iplist_impl takes a "base" list that provides the intrusive functionality (usually simple_ilist<T>) and a traits class. - iplist no longer takes a "Traits" template parameter. It only takes the value_type, T, and instantiates iplist_impl with simple_ilist<T> and ilist_traits<T>. - SymbolTableList now inherits from iplist_impl, instead of iplist. Note for out-of-tree code: if you have an iplist whose second template parameter was *not* the default (i.e., not ilist_traits<YourT>), you have three options: - Stop using a custom traits class, and instead specialize ilist_traits<YourT>. This is the usual thing to do. - Specialize iplist<YourT> to pass your custom traits class into iplist_impl. - Create your own trivial list type that passes your custom traits class into iplist_impl (see SymbolTableList<> for an example). [*]: The eventual goal is to start tracking a sentinel bit on the MachineInstr list even when LLVM_ENABLE_ABI_BREAKING_CHECKS is off, which will enable MachineBasicBlock::reverse_iterator to have normal list invalidation semantics that matching the new iplist<>::reverse_iterator from r280032. llvm-svn: 280569		2016-09-03 02:07:45 +00:00
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llvm	ADT: Split out iplist_impl from iplist, NFC	2016-09-03 02:07:45 +00:00
llvm-c	[EarlyCSE] Change C API pass interface for EarlyCSE w/ MemorySSA	2016-09-01 15:07:46 +00:00