Chandler Carruth c807870534 [SROA] Refactor the integer and vector promotion testing logic to ... operate in terms of the new Partition class, and generally have a more clear set of arguments. No functionality changed. The most notable improvements here are consistently using the terminology of 'partition' for a collection of slices that will be rewritten together and 'slice' for a region of an alloca that is used by a particular instruction. This also makes it more clear that the split things are actually slices as well, just ones that will be split by the proposed partition. This doesn't yet address the confusing aspects of the partition's interface where slices that will be split by the partition and start prior to the partition are accesssed via Partition::splitSlices() while the core range of slices exposed by a Partition includes both unsplit slices and slices which will be split by the end, but started within the offset range of the partition. This is particularly hard to address because the algorithm which computes partitions quite literally doesn't know which slices these will end up being until too late. I'm looking at whether I can fix that or not, but I'm not optimistic. I'll update the comments and/or names to further explain this either way. I've also added one FIXME in this patch relating to this confusion so that I don't forget about it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224798 91177308-0d34-0410-b5e6-96231b3b80d8		2014-12-24 01:05:14 +00:00
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InstCombine
Instrumentation	[asan] change the coverage collection scheme so that we can easily emit coverage for the entire process as a single bit set, and if coverage_bitset=1 actually emit that bitset	2014-12-23 22:32:17 +00:00
IPO
ObjCARC
Scalar	[SROA] Refactor the integer and vector promotion testing logic to	2014-12-24 01:05:14 +00:00
Utils	[SimplifyCFG] Revise common code sinking	2014-12-23 08:26:55 +00:00
Vectorize
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