[PATCH] D16083: [bugpoint] Teach bugpoint to reduce MDNodes

[Keno Fischer via llvm-commits]

loladiro updated this revision to Diff 44792.
loladiro added a comment.
Herald added a subscriber: dsanders.

Add two debuginfo specific passes to speed convergence of the reduction:

- Canonicalize all DIFiles into a single node
- Resolve All type references by string into explicit references

These two passes work around the two most commonly encountered verifier
failures when nulling out nodes, significantly speeding up the
convergence of the MD reducer (down to seconds from several minutes
on an LTO build of clang).


http://reviews.llvm.org/D16083

Files:
  include/llvm/Transforms/Utils/Cloning.h
  lib/CodeGen/StackColoring.cpp
  lib/ExecutionEngine/Orc/IndirectionUtils.cpp
  lib/IR/Metadata.cpp
  lib/IR/Verifier.cpp
  lib/Target/AMDGPU/AMDGPUOpenCLImageTypeLoweringPass.cpp
  lib/Transforms/Utils/CloneFunction.cpp
  lib/Transforms/Utils/CloneModule.cpp
  test/BugPoint/metadata.ll
  test/BugPoint/named-md.ll
  test/CodeGen/ARM/2010-08-04-StackVariable.ll
  test/CodeGen/MIR/X86/invalid-metadata-node-type.mir
  test/CodeGen/MIR/X86/stack-object-debug-info.mir
  test/CodeGen/X86/2012-11-30-regpres-dbg.ll
  test/CodeGen/X86/MachineSink-DbgValue.ll
  test/CodeGen/X86/dbg-changes-codegen-branch-folding.ll
  test/CodeGen/X86/fpstack-debuginstr-kill.ll
  test/CodeGen/X86/misched-code-difference-with-debug.ll
  test/DebugInfo/AArch64/frameindices.ll
  test/DebugInfo/Generic/2010-03-24-MemberFn.ll
  test/DebugInfo/Generic/2010-04-06-NestedFnDbgInfo.ll
  test/DebugInfo/Generic/2010-05-03-DisableFramePtr.ll
  test/DebugInfo/Generic/2010-05-03-OriginDIE.ll
  test/DebugInfo/Generic/incorrect-variable-debugloc.ll
  test/DebugInfo/Generic/incorrect-variable-debugloc1.ll
  test/DebugInfo/Generic/restrict.ll
  test/DebugInfo/Generic/tu-composite.ll
  test/DebugInfo/Generic/two-cus-from-same-file.ll
  test/DebugInfo/Generic/varargs.ll
  test/DebugInfo/Mips/dsr-non-fixed-objects.ll
  test/DebugInfo/X86/bbjoin.ll
  test/DebugInfo/X86/dbg-value-dag-combine.ll
  test/DebugInfo/X86/dbg-value-isel.ll
  test/DebugInfo/X86/dbg-value-terminator.ll
  test/DebugInfo/X86/elf-names.ll
  test/DebugInfo/X86/nodebug_with_debug_loc.ll
  test/DebugInfo/X86/nophysreg.ll
  test/DebugInfo/X86/rvalue-ref.ll
  test/DebugInfo/X86/sret.ll
  test/Linker/Inputs/type-unique-simple2-a.ll
  test/Linker/Inputs/type-unique-simple2-b.ll
  test/Linker/type-unique-type-array-a.ll
  test/Linker/type-unique-type-array-b.ll
  test/Transforms/CodeGenPrepare/X86/catchpad-phi-cast.ll
  test/Transforms/DeadStoreElimination/inst-limits.ll
  test/Transforms/SLPVectorizer/X86/debug_info.ll
  tools/bugpoint-passes/TestPasses.cpp
  tools/bugpoint/CrashDebugger.cpp
  tools/bugpoint/ListReducer.h
  unittests/Transforms/Utils/Cloning.cpp

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