https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103121

--- Comment #25 from Andrew Macleod <amacleod at redhat dot com> ---
OK, lets reset. 

I run it now, and ranger is indeed being used, so somewhere along the way the
conversion was finished I guess.

so.

looking at the trace, I see:

446      range_of_expr(_2) at stmt grp_name_25 = __builtin_alloca (_2);
447        range_of_stmt (_2) at stmt _2 = _1 + 1;
448          ROS dependence fill
               ROS dep fill (_2) at stmt _2 = _1 + 1;
             FALSE : (448) ROS  (_2)
449          range_of_expr(_1) at stmt _2 = _1 + 1;
450            range_of_stmt (_1) at stmt _1 = _20->len;
               TRUE : (450) range_of_stmt (_1) unsigned int VARYING
             TRUE : (449) range_of_expr (_1) unsigned int VARYING
 Registering value_relation (_2 != _1) (bb2) at _2 = _1 + 1;
           TRUE : (447) range_of_stmt (_2) unsigned int VARYING
         TRUE : (446) range_of_expr (_2) unsigned int VARYING

So the call to __builtin_alloca is returning VARYING, as one would expect.
The original comment#12 from martin was asking that he was seeing [1,1] instead
of VARYING for _4 (which is now _2 in this listing I presume)

That query should be returning VARYING now, as expected.

I also don't get the warning anymore on trunk.

Is there still an issue here?

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