[all-commits] [llvm/llvm-project] c43293: [SelectionDAG][RISCV] Use VP_STORE to widen MSTORE...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c432936b05d9e47c23dbbbe00ba02e11384fe6ff
      https://github.com/llvm/llvm-project/commit/c432936b05d9e47c23dbbbe00ba02e11384fe6ff
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2025-05-22 (Thu, 22 May 2025)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-masked-store-fp.ll
    M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-masked-store-int.ll
    M llvm/test/CodeGen/RISCV/rvv/masked-store-int.ll

  Log Message:
  -----------
  [SelectionDAG][RISCV] Use VP_STORE to widen MSTORE in type legalization when possible. (#140991)

Widening the mask and padding with zeros doesn't work for scalable
vectors. Using VL produces less code for fixed vectors.

Similar was recently done for MLOAD.



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