Ayal Zaks 2ff59d4350 [LV] Sink casts to unravel first order recurrence
Check if a single cast is preventing handling a first-order-recurrence Phi,
because the scheduling constraints it imposes on the first-order-recurrence
shuffle are infeasible; but they can be made feasible by moving the cast
downwards. Record such casts and move them when vectorizing the loop.

Differential Revision: https://reviews.llvm.org/D33058

llvm-svn: 306884
2017-06-30 21:05:06 +00:00
..
2017-06-30 07:09:08 +00:00
2017-06-30 07:09:08 +00:00