[all-commits] [llvm/llvm-project] 02f50d: [Assignment Tracking][9/*] Don't drop DIAssignID i...

[Orlando Cazalet-Hyams via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 02f50d05d5fea4e9c5fac310abccc5f7d770b25b
      https://github.com/llvm/llvm-project/commit/02f50d05d5fea4e9c5fac310abccc5f7d770b25b
  Author: OCHyams <orlando.hyams at sony.com>
  Date:   2022-11-09 (Wed, 09 Nov 2022)

  Changed paths:
    M llvm/lib/IR/Metadata.cpp
    M llvm/unittests/IR/DebugInfoTest.cpp

  Log Message:
  -----------
  [Assignment Tracking][9/*] Don't drop DIAssignID in dropUnknownNonDebugMetadata

The Assignment Tracking debug-info feature is outlined in this RFC:

https://discourse.llvm.org/t/
rfc-assignment-tracking-a-better-way-of-specifying-variable-locations-in-ir

A DIAssignID attachment is debug metadata, so don't drop it.

Reviewed By: jmorse

Differential Revision: https://reviews.llvm.org/D133292