[all-commits] [llvm/llvm-project] ec5d17: [RISCV] Explicitly check for passthru in doPeephol...

[Luke Lau via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ec5d17b58779e2fb08a7c9c706b2842586f71f78
      https://github.com/llvm/llvm-project/commit/ec5d17b58779e2fb08a7c9c706b2842586f71f78
  Author: Luke Lau <luke at igalia.com>
  Date:   2025-01-16 (Thu, 16 Jan 2025)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp

  Log Message:
  -----------
  [RISCV] Explicitly check for passthru in doPeepholeMaskedRVV. NFC

We were previously checking a combination of the vector policy op and
the opcode to determine if we needed to skip copying the passthru from
a masked pseudo to an unmasked pseudo.

However we can just do this by checking
RISCVII::isFirstDefTiedToFirstUse, which is a proxy for whether or not
a pseudo has a passthru operand.

This should hopefully remove the need for the changes in #123106



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications