llvm-project.git/lldb/test/API/lang/cpp/alignas_base_class, branch main Unnamed repository; edit this file 'description' to name the repository. [lldb][test] Add test-cases for packed/aligned structures (#96932) 2024-06-28T13:15:09+00:00 Michael Buch michaelbuch12@gmail.com 2024-06-28T13:15:09+00:00 46e848a23b212204b01abdc898a53b553d9a57c0 Adds test that checks whether LLDB correctly infers the alignment of packed structures. Specifically, the `InferAlignment` code-path of the `ItaniumRecordLayoutBuilder` where it assumes that overlapping field offsets imply a packed structure and thus sets alignment to `1`. See discussion in https://github.com/llvm/llvm-project/pull/93809. While here, also added a test-case where we check alignment of a class whose base has an explicit `DW_AT_alignment (those don't get transitively propagated in DWARF, but don't seem like a problem for LLDB). Lastly, also added an XFAIL-ed tests where the aforementioned `InferAlignment` kicks in for overlapping fields (but in this case incorrectly since the structure isn't actually packed). 
Adds test that checks whether LLDB correctly infers the
alignment of packed structures. Specifically, the
`InferAlignment` code-path of the `ItaniumRecordLayoutBuilder`
where it assumes that overlapping field offsets imply a
packed structure and thus sets alignment to `1`. See discussion
in https://github.com/llvm/llvm-project/pull/93809.

While here, also added a test-case where we check alignment of
a class whose base has an explicit `DW_AT_alignment
(those don't get transitively propagated in DWARF, but don't seem
like a problem for LLDB).

Lastly, also added an XFAIL-ed tests where the aforementioned
`InferAlignment` kicks in for overlapping fields (but in this
case incorrectly since the structure isn't actually packed).
 [LLDB] Respect the DW_AT_alignment attribute. (#73307) 2023-11-28T11:27:55+00:00 Haojian Wu hokein.wu@gmail.com 2023-11-28T11:27:55+00:00 439b16e2b369a0e3d482597b2c6597ce187e65f9 Part of fixes for #72913. clang emits `DW_AT_alignment` attribute, however LLDB didn't respect it, resulting in incorrect RecordDecls built by lldb. This only fixes non-inheritance cases. The inheritance case will be handled in a follow-up patch. 
Part of fixes for #72913.

clang emits `DW_AT_alignment` attribute, however LLDB didn't respect it,
resulting in incorrect RecordDecls built by lldb.

This only fixes non-inheritance cases. The inheritance case will be
handled in a follow-up patch.
 [NFC][Py Reformat] Reformat python files in lldb 2023-05-25T19:54:09+00:00 Jonas Devlieghere jonas@devlieghere.com 2023-05-25T15:48:57+00:00 2238dcc39358353cac21df75c3c3286ab20b8f53 This is an ongoing series of commits that are reformatting our Python code. Reformatting is done with `black` (23.1.0). If you end up having problems merging this commit because you have made changes to a python file, the best way to handle that is to run `git checkout --ours <yourfile>` and then reformat it with black. RFC: https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style Differential revision: https://reviews.llvm.org/D151460 
This is an ongoing series of commits that are reformatting our Python
code. Reformatting is done with `black` (23.1.0).

If you end up having problems merging this commit because you have made
changes to a python file, the best way to handle that is to run `git
checkout --ours <yourfile>` and then reformat it with black.

RFC: https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style

Differential revision: https://reviews.llvm.org/D151460
[lldb][tests] Automatically call compute_mydir (NFC) 2022-06-17T21:34:49+00:00 Dave Lee davelee.com@gmail.com 2022-06-17T00:38:47+00:00 4cc8f2a017c76af25234afc7c380550e9c93135c Eliminate boilerplate of having each test manually assign to `mydir` by calling `compute_mydir` in lldbtest.py. Differential Revision: https://reviews.llvm.org/D128077 
Eliminate boilerplate of having each test manually assign to `mydir` by calling
`compute_mydir` in lldbtest.py.

Differential Revision: https://reviews.llvm.org/D128077
[RecordLayout] Fix ItaniumRecordLayoutBuilder so that is grabs the correct bases class offsets from the external source 2020-07-08T17:07:15+00:00 shafik syaghmour@apple.com 2020-07-08T17:02:13+00:00 63b0f8c788d8c6978feb099fd6db8fe219c4d166 Currently the ItaniumRecordLayoutBuilder when laying out base classes has the virtual and non-virtual bases mixed up when pulling the base class layouts from the external source. This came up in an LLDB bug where on arm64 because of differences in how it deals with tail padding would layout the bases differently without the correct layout from the external source (LLDB). This would result in some fields being off by 4 bytes. Differential Revision: https://reviews.llvm.org/D83008 
Currently the ItaniumRecordLayoutBuilder when laying out base classes has the virtual
and non-virtual bases mixed up when pulling the base class layouts from the external source.

This came up in an LLDB bug where on arm64 because of differences in how it deals with
tail padding would layout the bases differently without the correct layout from the
external source (LLDB). This would result in some fields being off by 4 bytes.

Differential Revision: https://reviews.llvm.org/D83008