[Bug target/114344] [arm/mips] __alignof__ report a member packed struct as 1, while normal load/store instruction is used

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114344

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

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

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(insn 5 4 6 (set (reg/f:SI 115)
        (symbol_ref:SI ("*.LANCHOR0") [flags 0x182])) "/app/example.cpp":13:13
-1
     (nil))

(insn 6 5 7 (set (reg:SI 116)
        (const_int 305419896 [0x12345678])) "/app/example.cpp":13:13 -1
     (nil))

(insn 7 6 0 (set (mem/v/c:SI (plus:SI (reg/f:SI 115)
                (const_int 4 [0x4])) [2 sD.6114.iD.6110+0 S4 A32])
        (reg:SI 116)) "/app/example.cpp":13:13 -1
     (nil))

        .align  2
        .set    .LANCHOR0,. + 0
        .type   s, %object
        .size   s, 28
s:

The s variable is still aligned to 4 bytes so s.i is still aligned.

Doing:
`s __attribute__((aligned(1)));`

Makes the variable s unknown alignment and we get the multiple stores then.