[PATCH] D133929: [DebugInfo] Produce variadic DBG_INSTR_REFs from ISel

[Stephen Tozer via Phabricator via llvm-commits]

StephenTozer created this revision.
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This patch modifies SelectionDAG and FastISel to produce DBG_INSTR_REFs with variadic expressions, and produce DBG_INSTR_REFs for debug values with variadic location expressions. The former essentially means just prepending `DW_OP_LLVM_arg, 0` to the existing expression. The latter is achieved in `MachineFunction::finalizeDebugInstrRefs` and `InstrEmitter::EmitDbgInstrRef`.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D133929

Files:
  llvm/lib/CodeGen/MachineFunction.cpp
  llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
  llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
  llvm/lib/CodeGen/SelectionDAG/InstrEmitter.h
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

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