[Bug tree-optimization/108457] [13 Regression] tree-ssa-loop-niter.cc:2255:23: warning: variable 'mode' set but not used

[dave.anglin at bell dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108457

--- Comment #2 from dave.anglin at bell dot net ---
On 2023-01-18 4:07 p.m., pinskia at gcc dot gnu.org wrote:
> Basically C[TL]Z_DEFINED_VALUE_AT_ZERO macro does not always use its arguments
> so they don't get marked as used ...
Yes.  PA uses the default defines for these macros.