[all-commits] [llvm/llvm-project] eea865: Recommit "[SelectionDAG][RISCV] Add very basic Pro...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: eea865bd4a5348da374586d156aa1cc92eaeb562
      https://github.com/llvm/llvm-project/commit/eea865bd4a5348da374586d156aa1cc92eaeb562
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2023-06-15 (Thu, 15 Jun 2023)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
    M llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-sext-vp.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-zext-vp.ll

  Log Message:
  -----------
  Recommit "[SelectionDAG][RISCV] Add very basic PromoteIntegerResult/Op support for VP_SIGN/ZERO_EXTEND."

I have fixed an existing DAGCombiner bug that caused the previous assertion failure.
See 7163539466d7e8930416e55dd9fd29891f8239f2.

Original message

We don't have VP_ANY_EXTEND or VP_SIGN_EXTEND_INREG yet so I've
deviated a little from the non-VP lowering.

My goal was to fix the crashes that occurs on these test cases without this patch.

Reviewed By: fakepaper56

Differential Revision: https://reviews.llvm.org/D152854