[all-commits] [llvm/llvm-project] c4fbb6: [llvm-debuginfo-analyzer] Add support for DW_AT_GN...

[Carlos Alberto Enciso via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c4fbb6500a557fec592af8b9c398169591cdcc5d
      https://github.com/llvm/llvm-project/commit/c4fbb6500a557fec592af8b9c398169591cdcc5d
  Author: Carlos Alberto Enciso <Carlos.Enciso at sony.com>
  Date:   2024-11-28 (Thu, 28 Nov 2024)

  Changed paths:
    M llvm/lib/DebugInfo/LogicalView/Readers/LVDWARFReader.cpp
    A llvm/test/tools/llvm-debuginfo-analyzer/DWARF/DW_AT_GNU_template_name.test
    A llvm/test/tools/llvm-debuginfo-analyzer/DWARF/Inputs/DW_AT_GNU_template_name.ll

  Log Message:
  -----------
  [llvm-debuginfo-analyzer] Add support for DW_AT_GNU_template_name. (#115724)

For the given C++ code:
```
  template <typename T> class Foo { T Member; };

  template <template <typename T> class TemplateType>
  class Bar {
    TemplateType<int> Int;
  };

  template <template <template <typename> class> class TemplateTemplateType>
  class Baz {
    TemplateTemplateType<Foo> Foo;
  };

  typedef Baz<Bar> Example;
  Example TT;
```
The '--attribute=encoded' option, will produce the logical view:
```
  {Class} 'Foo<int>'
    {Encoded} <int>
  {Class} 'Bar<Foo>'
    {Encoded} <>                 <-- Missing the template argument info (Foo)
  {Class} 'Baz<Bar>'
    {Encoded} <>                 <-- Missing the template argument info (Bar)
```
When the template argument is another template it is not included in the
{Encoded} field. The correct output should be:
```
  {Class} 'Foo<int>'
    {Encoded} <int>
  {Class} 'Bar<Foo>'
    {Encoded} <Foo>
  {Class} 'Baz<Bar>'
    {Encoded} <Bar>
```



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