Chris Lattner cf82dc376a Rewrite the main DSE loop to be written in terms of reasoning ... about pairs of AA::Location's instead of looking for MemDep's "Def" predicate. This is more powerful and general, handling memset/memcpy/store all uniformly, and implementing PR8701 and probably obsoleting parts of memcpyoptimizer. This also fixes an obscure bug with init.trampoline and i8 stores, but I'm not surprised it hasn't been hit yet. Enhancing init.trampoline to carry the size that it stores would allow DSE to be much more aggressive about optimizing them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120406 91177308-0d34-0410-b5e6-96231b3b80d8		2010-11-30 07:23:21 +00:00
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llvm	Rewrite the main DSE loop to be written in terms of reasoning	2010-11-30 07:23:21 +00:00
llvm-c	I swear I did a make clean and make before committing all this...	2010-11-29 18:47:54 +00:00