Eli Friedman e3502119ae Preserve domtree and loop-simplify for runtime unrolling. ... Mostly straightforward changes; we just didn't do the computation before. One sort of interesting change in LoopUnroll.cpp: we weren't handling dominance for children of the loop latch correctly, but foldBlockIntoPredecessor hid the problem for complete unrolling. Currently punting on loop peeling; made some minor changes to isolate that problem to LoopUnrollPeel.cpp. Adds a flag -unroll-verify-domtree; it verifies the domtree immediately after we finish updating it. This is on by default for +Asserts builds. Differential Revision: https://reviews.llvm.org/D28073 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292447 91177308-0d34-0410-b5e6-96231b3b80d8		2017-01-18 23:26:37 +00:00
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llvm	Preserve domtree and loop-simplify for runtime unrolling.	2017-01-18 23:26:37 +00:00
llvm-c	[GVN] Initial check-in of a new global value numbering algorithm.	2016-12-22 16:03:48 +00:00