[all-commits] [llvm/llvm-project] f99072: [Clang][BPF] Add tests for btf_type_tag c2x-style ...

[yonghong-song via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f99072bd8c6b479badfda0a8affd4964b26af4f7
      https://github.com/llvm/llvm-project/commit/f99072bd8c6b479badfda0a8affd4964b26af4f7
  Author: yonghong-song <yhs at fb.com>
  Date:   2025-04-02 (Wed, 02 Apr 2025)

  Changed paths:
    M clang/test/CodeGen/attr-btf_type_tag-similar-type.c
    M clang/test/CodeGen/attr-btf_type_tag-typedef-field.c

  Log Message:
  -----------
  [Clang][BPF] Add tests for btf_type_tag c2x-style attributes (#133666)

For btf_type_tag implementation, in order to have the same results with
clang (__attribute__((btf_type_tag("...")))), gcc intends to use c2x
syntax '[[...]]'. Clang also supports similar c2x syntax. Currently, the
clang selftest contains the following five tests:
```
  attr-btf_type_tag-func.c
  attr-btf_type_tag-similar-type.c
  attr-btf_type_tag-var.c
  attr-btf_type_tag-func-ptr.c
  attr-btf_type_tag-typedef-field.c
```

Tests attr-btf_type_tag-func.c and attr-btf_type_tag-var.c already have
c2x syntax test.

Test attr-btf_type_tag-func-ptr.c does not support c2x syntax when
'__attribute__((...))' is replaced with with '[[...]]'. This should not
be an issue since we do not have use cases for function pointer yet.

This patch added '[[...]]' syntax for
```
  attr-btf_type_tag-similar-type.c
  attr-btf_type_tag-typedef-field.c
```



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