[all-commits] [llvm/llvm-project] 45b08c: [PowerPC] Set SubRegIndex offset for sub_vsx1/sub_...

[jsji via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 45b08c41bfb04684abfbd846e2924177dbcddd04
      https://github.com/llvm/llvm-project/commit/45b08c41bfb04684abfbd846e2924177dbcddd04
  Author: Jinsong Ji <jji at us.ibm.com>
  Date:   2020-12-08 (Tue, 08 Dec 2020)

  Changed paths:
    M llvm/lib/Target/PowerPC/PPCRegisterInfo.td

  Log Message:
  -----------
  [PowerPC] Set SubRegIndex offset for sub_vsx1/sub_pair1

We defined SubRegIndex for 256/512 regs,
but we did not set the offset for higher part,
so the offset of lower and higher part are the same.
This may cause problem in assessing ranges of SubReg,
it is great that this haven't affected any testcases,
but I think we should fix it to avoid hidden bugs in the future.

Reviewed By: bsaleil, #powerpc

Differential Revision: https://reviews.llvm.org/D92864