Andrew Trick 22d20c218a Adding IV chain generation to LSR. ... After collecting chains, check if any should be materialized. If so, hide the chained IV users from the LSR solver. LSR will only solve for the head of the chain. GenerateIVChains will then materialize the chained IV users by computing the IV relative to its previous value in the chain. In theory, chained IV users could be exposed to LSR's solver. This would be considerably complicated to implement and I'm not aware of a case where we need it. In practice it's more important to intelligently prune the search space of nontrivial loops before running the solver, otherwise the solver is often forced to prune the most optimal solutions. Hiding the chained users does this well, so that LSR is more likely to find the best IV for the chain as a whole. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147801 91177308-0d34-0410-b5e6-96231b3b80d8		2012-01-09 21:18:52 +00:00
..
Hello
InstCombine	Move assert to the right place.	2012-01-09 17:36:29 +00:00
Instrumentation	[asan] cleanup: remove the SIGILL-related code (compiler part)	2012-01-06 18:09:21 +00:00
IPO	PR11705, part 2: globalopt shouldn't put inttoptr/ptrtoint operations into global initializers if there's an implied extension or truncation.	2012-01-05 23:03:32 +00:00
Scalar	Adding IV chain generation to LSR.	2012-01-09 21:18:52 +00:00
Utils	Fix SpeculativelyExecuteBB to either speculate all or none of the phis	2012-01-05 23:58:56 +00:00
CMakeLists.txt
LLVMBuild.txt	LLVMBuild: Introduce a common section which currently has a list of the	2011-12-12 22:45:54 +00:00
Makefile