[Bug tree-optimization/127781] [17 Regression] ICE in dom_oracle::nearest_relations at -O3

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127781

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2026-10-09
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed (I think I've seen a duplicate).

0x0000000001fff501 in dom_oracle::nearest_relations (this=0x534bc30, 
    name=<tree 0x0>, bb=<basic_block 0x7ffff74622a0 (20)>)
    at ../../src/gcc/gcc/value-relation.cc:1831
1831      if (TREE_CODE (name) != SSA_NAME)

so we have a frontier_element w/ NULL name.