[Bug tree-optimization/102162] Byte-wise access optimized away at -O1 and above

[dave.anglin at bell dot net via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102162

--- Comment #5 from dave.anglin at bell dot net ---
On 2021-09-01 4:52 p.m., deller at gmx dot de wrote:
> I think the problem with your testcase is, that the compiler doesn't know the 
> alignment of the parameter "p" in your f_unaligned() function.
> So it will generate byte-accesses.
So, it seems the __aligned__ attribute is ignored:
extern u32 output_len __attribute__((__aligned__(1)));