[LLVMbugs] [Bug 19881] __attribute__((aligned(4))) must be placed in a typedef for it to work.

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu May 29 13:01:52 PDT 2014


Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #5 from Richard Smith <richard-llvm at metafoo.co.uk> ---
(In reply to comment #4)
> Is the syntax for cv qualifiers and __attribute__ different with this
> respect?

Yes. GCC's attribute syntax is weird and underdocumented, but it doesn't behave
like cv-qualifiers in this context.

> If so, is the difference by accident and incidental, or is there
> some underlying reason?

You should ask the GCC folks this question; we didn't invent the syntax and
semantics here and weren't involved in its design. We just try to be compatible
with how GCC behaves.

Here's what the [GCC
has to say on this:

"Any list of specifiers and qualifiers at the start of a declaration may
contain attribute specifiers[...]. All attribute specifiers in this place
relate to the declaration as a whole."

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