On December 2, 2019 4:27:47 PM GMT+01:00, Alexander Monakov
<amona...@ispras.ru> wrote:
>On Mon, 2 Dec 2019, Richard Biener wrote:
>
>> +typedef long long v4di __attribute__((vector_size(32)));
>> +struct Vec
>> +{
>> + unsigned int v[8];
>> +};
>> +
>> +v4di pun (struct Vec *s)
>> +{
>> + v4di tem;
>> + __builtin_memcpy (&tem, s, 32);
>> + return tem;
>> +}
>> +
>> +/* We're expecting exactly two stmts, in particular no
>BIT_INSERT_EXPR
>> + and no memcpy call.
>> + _3 = MEM <vector(4) long long int> [(char * {ref-all})s_2(D)];
>> + return _3; */
>
>So just to make sure I understand correctly: the type in angle brackets
>does
>not imply 256-bit alignment, and this access has implied alignment of
>just
>32 bits, which is deduced from the type of s_2, right?
Yes. I should have quoted the more obvious -gimple IL dump instead.
Richard.
>Thanks!
>Alexander
