[PATCH] D76141: [DebugInfo] Handle generic type DW_OP_convert ops in llvm-dwarfdump

[David Stenberg via Phabricator via llvm-commits]

dstenb created this revision.
dstenb added reviewers: aprantl, markus.
dstenb added a project: debug-info.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a reviewer: jdoerfert.
Herald added a reviewer: jhenderson.
Herald added a project: LLVM.
dstenb added a child revision: D76142: [DebugInfo] Handle generic type DW_OP_convert ops in dsymutil.

This is a preparatory change for introducing a new operation that'll let
us emit DW_OP_convert operations converting to the generic type.

If DW_OP_convert's operand is 0, it converts the top of stack to the
generic type, as specified by DWARFv5 section 2.5.1.6:

"[...] takes one operand, which is an unsigned LEB128 integer that
 represents the offset of a debugging information entry in the current
 compilation unit, or value 0 which represents the generic type."

This adds support for such operations to llvm-dwarfdump.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D76141

Files:
  llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp
  llvm/test/tools/llvm-dwarfdump/X86/debug_expr_convert_generic.s

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