SuccessChanges

Summary

  1. [PowerPC] extend PPCPreIncPrep Pass for ds/dq form (details)
Commit a0337d269b7c3305d4e0a729d39d389a0aaec928 by czhengsz
[PowerPC] extend PPCPreIncPrep Pass for ds/dq form
Now, PPCPreIncPrep pass changes a loop to update form and update all
load/store with same base accordingly. We can do more for load/store
with same base, for example, convert load/store with same base to ds/dq
form.
Reviewed by: jsji
Differential Revision: https://reviews.llvm.org/D67088
The file was modifiedllvm/lib/Target/PowerPC/PPCLoopPreIncPrep.cpp
The file was modifiedllvm/test/CodeGen/PowerPC/loop-instr-form-prepare.ll
The file was modifiedllvm/test/CodeGen/PowerPC/swaps-le-1.ll