[all-commits] [llvm/llvm-project] a0337d: [PowerPC] extend PPCPreIncPrep Pass for ds/dq form

[chen zheng via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: a0337d269b7c3305d4e0a729d39d389a0aaec928
      https://github.com/llvm/llvm-project/commit/a0337d269b7c3305d4e0a729d39d389a0aaec928
  Author: czhengsz <czhengsz at cn.ibm.com>
  Date:   2019-11-17 (Sun, 17 Nov 2019)

  Changed paths:
    M llvm/lib/Target/PowerPC/PPCLoopPreIncPrep.cpp
    M llvm/test/CodeGen/PowerPC/loop-instr-form-prepare.ll
    M llvm/test/CodeGen/PowerPC/swaps-le-1.ll

  Log Message:
  -----------
  [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