[PATCH] D133926: [DebugInfo] Allow non-stack_value variadic expressions and use in DBG_INSTR_REF

[Stephen Tozer via Phabricator via llvm-commits]

StephenTozer created this revision.
StephenTozer added reviewers: jmorse, Orlando.
StephenTozer added a project: debug-info.
Herald added subscribers: jdoerfert, hiraditya.
Herald added a project: All.
StephenTozer requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Prior to this patch, variadic DIExpressions (i.e. ones that contain DW_OP_LLVM_arg) could only be created by salvaging debug values to create stack value expressions, resulting in a DBG_VALUE_LIST being created. As of the previous patch in this patch stack, DBG_INSTR_REF's syntax has been changed to match DBG_VALUE_LIST in preparation for supporting variadic expressions. This patch adds some minor changes needed to allow variadic expressions that aren't stack values to exist, and allows variadic expressions that are trivially reduceable to non-variadic expressions to be handled similarly to non-variadic expressions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D133926

Files:
  llvm/docs/MIRLangRef.rst
  llvm/include/llvm/IR/DebugInfoMetadata.h
  llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
  llvm/lib/CodeGen/AsmPrinter/DebugLocEntry.h
  llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
  llvm/lib/CodeGen/LiveDebugVariables.cpp
  llvm/lib/IR/DebugInfoMetadata.cpp
  llvm/lib/Transforms/Utils/Local.cpp

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