[Bug c/61939] warn when __attribute__((aligned(x))) is ignored

["egallager at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61939

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-07-30
                 CC|                            |egallager at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #3 from Eric Gallager <egallager at gcc dot gnu.org> ---
I had to modify the original testcase a bit to get it to compile:

$ cat 61939.c
struct some_struct { int foo; };
void copy_something(void *p, const void *s) {
    struct some_struct __attribute__((aligned(8))) *_d = p;
    struct some_struct __attribute__((aligned(8))) *_s = s;
    *_d = *_s;
}
$ /usr/local/bin/gcc -c -Wall -Wextra -pedantic -Wcast-align -Wattributes
61939.c
61939.c: In function ‘copy_something’:
61939.c:4:58: warning: initialization discards ‘const’ qualifier from pointer
target type [-Wdiscarded-qualifiers]
     struct some_struct __attribute__((aligned(8))) *_s = s;
                                                          ^
$

But beyond that, yeah, confirmed. I think there's probably a duplicate around
here somewhere but I've forgotten the number already...