chill added inline comments.
================
Comment at: clang/test/CodeGen/aarch64-ABI-align-packed.c:34
struct aligned_member_8 {
uint16x8_t M0 __attribute((aligned (8))); // member alignment 16 since
__attribute((aligned (n))) sets the minimum alignment
};
----------------
JiruiWu wrote:
> chill wrote:
> > Don't you mean "`__attribute__((aligned(n)))` cannot decrease the minimum
> > required alignment" ?
> >
> >
> I added this comment to explain that the natural alignment of the struct
> `aligned_member_8` is 16-byte instead of 8-byte. In this test case the
> alignment of `M0` is 16 bytes, which is above the minimum required alignment
> specified by `__attribute__((aligned(8)))`.
Yes, so the `__attribute__` does not actually set the minimum required
alignment,
it sets the member alignment to the maximum of the natural and the specified
alignment.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D146242/new/
https://reviews.llvm.org/D146242
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