[Bug tree-optimization/64822] tree-ssa-sccvn miscompile union containing bitfield for big-endian targets

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64822

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |rguenth at gcc dot gnu.org,
                   |                            |thomas.preudhomme at arm dot com

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
This is fold_ctor_reference at work.  I remember that somebody was working on
fixing bugs in that or its caller related to bigendian bitfields...?

Thomas?  (refering to PR62103)

The bug is exposed by my changes to more aggressively fold from constructors
during value-numbering.