[all-commits] [llvm/llvm-project] 009971: [TableGen] Accurately calculate where the source v...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 009971a0d3218d3af0d10fb70d2c876ccc46b24d
      https://github.com/llvm/llvm-project/commit/009971a0d3218d3af0d10fb70d2c876ccc46b24d
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2025-04-12 (Sat, 12 Apr 2025)

  Changed paths:
    M llvm/utils/TableGen/PseudoLoweringEmitter.cpp

  Log Message:
  -----------
  [TableGen] Accurately calculate where the source variable ops start in PseudoLoweringEmitter::emitLoweringEmitter. (#135465)

The code was using the number of source operands plus one. The plus one
seems to be an ARM specific value accounting for one of the source
operands having 2 sub operands. No other target in tree uses
PseudoLowering with variadic instructions so this worked.

This patch replaces it with a proper count of the number of sub operands
of all operands. While there I update the loop to use MIOperandNo so we
don't need to count up the sub operands as we go.



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