[Bug debug/89108] variable tracking size limit exceeded

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed Jan 30 08:51:00 GMT 2019


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89108

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |compile-time-hog,
                   |                            |memory-hog
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2019-01-30
     Ever confirmed|0                           |1
      Known to fail|                            |7.4.0, 8.2.1, 9.0

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
The hard limit is there to make compiling possible in some cases.  Btw,
santizing makes your "small" testcase quite large.
It's also of the usual repeat-many-similiar-things-in-one-functions cases
where var-tracking runs into quadraticnesses.

Confirmed with -O2 -g -fsanitize={undefined,address} (only need either, not
both)


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