[Bug target/107563] __builtin_shufflevector fails to pshufd instructions under default x86_64 compilation toggle which is the sse2 one

crazylht at gmail dot com gcc-bugzilla@gcc.gnu.org
Tue Nov 8 03:23:44 GMT 2022


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107563

Hongtao.liu <crazylht at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |crazylht at gmail dot com

--- Comment #5 from Hongtao.liu <crazylht at gmail dot com> ---

> 
> https://godbolt.org/z/6baWWoE4e
> BTW. -msse3 does not use pshufb either. i do not know why

It should be -mssse3.


More information about the Gcc-bugs mailing list