[all-commits] [llvm/llvm-project] 4ba08d: [Assignment Tracking][24/*] Always RemoveRedundant...

[Orlando Cazalet-Hyams via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4ba08d512c8774de431824f37faf9e54d73a3119
      https://github.com/llvm/llvm-project/commit/4ba08d512c8774de431824f37faf9e54d73a3119
  Author: OCHyams <orlando.hyams at sony.com>
  Date:   2022-11-18 (Fri, 18 Nov 2022)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
    A llvm/test/DebugInfo/Generic/assignment-tracking/instcombine/do-not-remove-redundant-dbg.ll
    A llvm/test/DebugInfo/Generic/assignment-tracking/instcombine/remove-redundant-dbg.ll
    M llvm/test/DebugInfo/Generic/assignment-tracking/salvage-value.ll

  Log Message:
  -----------
  [Assignment Tracking][24/*] Always RemoveRedundantDbgInstrs in instcombine in assignment tracking builds

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

This reduces peak memory overhead by 15% when building CTMark's tramp3d-v4 with
-O2 -g with assignment tracking enabled.

Reviewed By: jmorse

Differential Revision: https://reviews.llvm.org/D133321