Mehdi Amini 194c9f4ba1 Global DCE performance improvement ... Change the original algorithm so that it scales better when meeting very large bitcode where every instruction does not implies a global. The target query is "how to you get all the globals referenced by another global"? Before this patch, it was doing this by walking the body (or the initializer) and collecting the references. What this patch is doing, it precomputing the answer to this query for the whole module by walking the use-list of every global instead. Patch by: Serge Guelton <serge.guelton@telecom-bretagne.eu> Differential Revision: https://reviews.llvm.org/D28549 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293328 91177308-0d34-0410-b5e6-96231b3b80d8		2017-01-27 19:48:57 +00:00
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llvm	Global DCE performance improvement	2017-01-27 19:48:57 +00:00
llvm-c	[GVN] Initial check-in of a new global value numbering algorithm.	2016-12-22 16:03:48 +00:00