https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126650
--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-15 branch has been updated by Richard Biener <[email protected]>: https://gcc.gnu.org/g:ba07588cc97d103842e1eac10065689321d97b56 commit r15-11491-gba07588cc97d103842e1eac10065689321d97b56 Author: Richard Biener <[email protected]> Date: Wed Aug 5 10:31:47 2026 +0200 tree-optimization/126650 - get_inner_reference_aff and bitfields get_inner_reference_aff tries to compensate for bit precision offsets and sizes by rounding down and up, but fails to do this correctly. The following makes it more obviously correct by rounding positions and computing the rounded size based on those. PR tree-optimization/126650 * tree-affine.cc (get_inner_reference_aff): Fixup rounding of size. * gcc.dg/torture/pr126650.c: New testcase. (cherry picked from commit 9baaca2adeca178edf8c0816ef328dba1cf270bc)
