[Issue 21363] [REG2.094] Implementation of core.bitop.ror(x,0) is using UB

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21363

Dlang Bot <dlang-bot at dlang.rocks> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |pull

--- Comment #1 from Dlang Bot <dlang-bot at dlang.rocks> ---
@Chigusa0w0 created dlang/druntime pull request #3457 "Fix Issue 21363 -
[REG2.094] Implementation of core.bitop.ror(x,0) is…" fixing this issue:

- Fix Issue 21363 - [REG2.094] Implementation of core.bitop.ror(x,0) is using
UB

  This is a quick fix to Issue 21363. When `count` is set to `0`, `T.sizeof * 8
- count` will always be `T.sizeof * 8` therefore fails compiler check here:
 
https://github.com/dlang/dmd/blob/81f9f57257da8733cf741355524bb8a3ec9c45ce/src/dmd/dinterpret.d#L3018-L3024

https://github.com/dlang/druntime/pull/3457

--