[all-commits] [llvm/llvm-project] a9eeb1: [Tablegen] Fix condition to report when lanemask o...

[Petr Vesely via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a9eeb151fb5681fb254ad8da891424d2fbc033c0
      https://github.com/llvm/llvm-project/commit/a9eeb151fb5681fb254ad8da891424d2fbc033c0
  Author: Petr Vesely <veselypeta at gmail.com>
  Date:   2026-03-06 (Fri, 06 Mar 2026)

  Changed paths:
    A llvm/test/TableGen/SubRegsLaneBitmask.td
    M llvm/utils/TableGen/Common/CodeGenRegisters.cpp

  Log Message:
  -----------
  [Tablegen] Fix condition to report when lanemask overflows (#181810)

This PR:

Fixes a slight off-by-one error in the check for how many bits are
allocated for subreg lane masks. If 65 subreg lanes are used, it fails
later, but the error message is not clear as to what has occured.



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