[all-commits] [llvm/llvm-project] 576085: [SelectionDAG][RISCV] Add support for splitting vp...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 576085c94855fc1536aa6343b272d9e87b7cb3ed
      https://github.com/llvm/llvm-project/commit/576085c94855fc1536aa6343b272d9e87b7cb3ed
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2025-06-23 (Mon, 23 Jun 2025)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
    M llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
    M llvm/test/CodeGen/RISCV/rvv/vp-splice.ll

  Log Message:
  -----------
  [SelectionDAG][RISCV] Add support for splitting vp.splice (#145184)

Use a stack based expansion similar to the non-VP splice.

This code has been in our downstream for a while. I don't know how often
it is exercised though. Our downstream was missing clipping for the
immediate value to keep it in range of the stack object so I've added
it.



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