[all-commits] [llvm/llvm-project] 40bdfd: [llvm-reduce][DebugInfo] Support reducing non-inst...

[Jeremy Morse via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 40bdfd39e394baa08fa67c5943c1b53c66c94bed
      https://github.com/llvm/llvm-project/commit/40bdfd39e394baa08fa67c5943c1b53c66c94bed
  Author: Jeremy Morse <jeremy.morse at sony.com>
  Date:   2024-01-23 (Tue, 23 Jan 2024)

  Changed paths:
    A llvm/test/tools/llvm-reduce/remove-dp-values.ll
    M llvm/tools/llvm-reduce/CMakeLists.txt
    M llvm/tools/llvm-reduce/DeltaManager.cpp
    A llvm/tools/llvm-reduce/deltas/ReduceDPValues.cpp
    A llvm/tools/llvm-reduce/deltas/ReduceDPValues.h
    M llvm/tools/llvm-reduce/llvm-reduce.cpp

  Log Message:
  -----------
  [llvm-reduce][DebugInfo] Support reducing non-instruction debug-info (#78995)

LLVM will shortly be able to represent variable locations without
encoding information into intrinsics -- they'll be stored as DPValue
objects instead. We'll still need to be able to llvm-reduce these
variable location assignments just like we can with intrinsics today,
thus, here's an llvm-reduce pass that enumerates and reduces the DPValue
objects.

The test for this is paradoxically written with dbg.value intrinsics:
this is because we're changing all the core parts of LLVM to support
this first, with the textual IR format coming last. Until that arrives,
testing the llvm-reduce'ing of DPValues needs the added test using
intrinsics. We should be able to drop the variable assignment using
%alsoloaded using this method. As with the other llvm-reduce tests, I've
got one set of check lines for making the reduction happen as desired,
and the other set to check the final output.