Hal Finkel 0ef8f3189e [PowerPC] Enable speculation of cttz/ctlz
PPC has an instruction for ctlz with defined zero behavior, and our lowering of
cttz (provided by DAGCombine) is also efficient and branchless, so speculating
these makes sense.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225150 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-05 05:24:42 +00:00
..