[PATCH] D19821: [EarlyCSE] Use MemorySSA if available.

[Geoff Berry via llvm-commits]

gberry added a comment.

Updated llvm-test-suite compile time regressions using LNT methodology:
llvm-test-suite/SingleSource/Benchmarks/Misc/flops-6                             +4.019%
llvm-test-suite/SingleSource/Benchmarks/Adobe-C++/simple_types_constant_folding  +4.967%
llvm-test-suite/SingleSource/Benchmarks/Polybench/medley/reg_detect/reg_detect   +5.268%
llvm-test-suite/SingleSource/UnitTests/Vectorizer/gcc-loops                      +5.538%


http://reviews.llvm.org/D19821