https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90668
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |alias, wrong-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-05-31
CC| |rguenth at gcc dot gnu.org
Blocks| |57359
Ever confirmed|0 |1
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yes, that's arguably a bug, there's a duplicate about this, PR57359, which
explains the complexity for retaining this optimizations (other compilers
happily do as well, at least for PR57359).
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57359
[Bug 57359] store motion causes wrong code for union access at -O3
