[Bug rtl-optimization/127851] [16/17 Regression] combine can reorder two volatile reads by folding them into one insn

[ubizjak at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127851

--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Vineet Gupta from comment #2)

> so y is read before x.  Since -ffuse-ops-with-volatile-access is
> target-independent, it would be better to plug this in combine itself.
Yes, this should be fixed in combine pass.