[all-commits] [llvm/llvm-project] af2a22: [RISCV][VLOPT] Fix passthru operand info for mixed...

[Luke Lau via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: af2a228e0b5c9fbfa02f37f1be10800b17509617
      https://github.com/llvm/llvm-project/commit/af2a228e0b5c9fbfa02f37f1be10800b17509617
  Author: Luke Lau <luke at igalia.com>
  Date:   2025-02-10 (Mon, 10 Feb 2025)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVVLOptimizer.cpp
    M llvm/test/CodeGen/RISCV/rvv/vl-opt-op-info.mir

  Log Message:
  -----------
  [RISCV][VLOPT] Fix passthru operand info for mixed-width instructions (#126504)

After #124066 we started allowing users that are passthrus. However for
widening/narrowing instructions we were returning the wrong operand info
for passthru operands since it originally assumed the operand would
never be a passthru. This fixes it by handling it in IsMODef.



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