[all-commits] [llvm/llvm-project] def915: [DebugInfo] Variables with only empty values emitt...

[Stephen Tozer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: def915c39cc4e18b304c7a8c4761cc4531c3bc4b
      https://github.com/llvm/llvm-project/commit/def915c39cc4e18b304c7a8c4761cc4531c3bc4b
  Author: Stephen Tozer <Stephen.Tozer at Sony.com>
  Date:   2022-12-20 (Tue, 20 Dec 2022)

  Changed paths:
    M llvm/lib/CodeGen/AsmPrinter/DbgEntityHistoryCalculator.cpp
    M llvm/test/DebugInfo/X86/dbg_value_list_emission.mir

  Log Message:
  -----------
  [DebugInfo] Variables with only empty values emitting when one is variadic

This patch fixes a simple bug in DbgValueHistoryMap::hasNonEmptyLocation
that caused it to treat empty DBG_VALUE_LIST instructions as non-empty
when determining whether to emit a variable or not.

Differential Revision: https://reviews.llvm.org/D133925