https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81020
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |NEW
Assignee|rguenth at gcc dot gnu.org |unassigned at gcc dot
gnu.org
Summary|[6/7 Regression] wrong code |[6/7/8 Regression] wrong
|with -O -fno-tree-bit-ccp |code with -O
|-fno-tree-coalesce-vars |-fno-tree-bit-ccp
|-fno-tree-vrp |-fno-tree-coalesce-vars
| |-fno-tree-vrp
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
There's nothing wrong with the GIMPLE (looked at aarch64) so it must be some
other RTL optimization issue.
aarch64 assembler is
foo:
adrp x1, .LANCHOR0
ldr w1, [x1, #:lo12:.LANCHOR0]
orr w0, w1, w0
ret
that looks indeed bogus (just does return v | x;?)
