aaron.ballman requested changes to this revision.
aaron.ballman added a comment.
This revision now requires changes to proceed.
Thank you for working on this! I spotted a little more that needs to be done,
but this is pretty close to ready. I *think* the precommit CI failures are
unrelated to this change, but you should double-check just to be sure.
================
Comment at: clang/lib/Sema/SemaDecl.cpp:5031
+static unsigned GetDiagnosticTypeSpecifierID(const DeclSpec &DS) {
+ DeclSpec::TST T=DS.getTypeSpecType();
switch (T) {
----------------
Style nit; NFC
================
Comment at: clang/lib/Sema/SemaDecl.cpp:5042-5046
+ if (const EnumDecl *ED = dyn_cast<EnumDecl>(DS.getRepAsDecl())) {
+ if (ED->isScopedUsingClassTag())
+ return 5;
+ }
return 4;
----------------
There's a subtle bug hiding in here, consider code like:
```
__attribute__((visibility("hidden"))) __attribute__((aligned)) enum struct E
{};
```
The diagnostic will emit `enum` because the `EnumDecl` is scoped using the
`struct` tag rather than the `class` tag. I think you should add another entry
to the `%select` for `enum struct` and return that value here if
`ED->isScoped()` is true, and only return `4` for a plain `enum`.
================
Comment at: clang/test/Sema/attr-declspec-ignored.c:23
+__attribute__((visibility("hidden"))) __attribute__((aligned)) enum F {F} f;
\ No newline at end of file
----------------
I'm not seeing what changed with this line, I think you can revert the changes
to this file.
================
Comment at: clang/test/SemaCXX/attr-declspec-ignored.cpp:12
// expected-warning{{attribute 'aligned' is ignored, place it after "enum"
to apply attribute to type declaration}}
+ __attribute__((visibility("hidden"))) __attribute__((aligned)) enum class
EC {}; // expected-warning{{attribute 'visibility' is ignored, place it after
"enum class" to apply attribute to type declaration}} \
+ // expected-warning{{attribute 'aligned' is ignored, place it after "enum
class" to apply attribute to type declaration}}
----------------
Once you fix the `enum struct` diagnostic above, I'd recommend adding some
`enum struct` test cases.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D147989/new/
https://reviews.llvm.org/D147989
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