[Bug tree-optimization/125404] [17 regression] gcc/cobol/symfind.cc:526:45: error: array subscript -1 is outside array bounds of 'long unsigned int [1152921504606846975]' [-Werror=array-bounds=] [r17-603-gacfdad706d8acc]

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125404

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #1)
> See https://gcc.gnu.org/pipermail/gcc-patches/2026-May/717452.html

I see no change in test results with this patch, e.g. on
aarch64-unknown-linux-gnu (Fedora 44) I see this before and after the patch:

FAIL: cobol.dg/group2/_-static__compilation.cob   -O0  execution test
FAIL: cobol.dg/group2/_-static__compilation.cob   -O1  execution test
FAIL: cobol.dg/group2/_-static__compilation.cob   -O2  execution test
FAIL: cobol.dg/group2/_-static__compilation.cob   -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: cobol.dg/group2/_-static__compilation.cob   -O3 -g  execution test
FAIL: cobol.dg/group2/_-static__compilation.cob   -Os  execution test

                === cobol Summary ===

# of expected passes            7372
# of unexpected failures        6
# of expected failures          78
/tmp/build-cobol/gcc/gcobol  version 17.0.0 20260522 (experimental) (GCC)