https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88101
--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:bf0a63a1f47525d1c466dbb84616dcb72010affa commit r11-5490-gbf0a63a1f47525d1c466dbb84616dcb72010affa Author: Jakub Jelinek <ja...@redhat.com> Date: Fri Nov 27 11:23:45 2020 +0100 gimple-fold: Fix another __builtin_clear_padding ICE When playing with __builtin_bit_cast, I have noticed __builtin_clear_padding ICE on the G class below. The artificial field with D type has offset 0 and size 8 bytes, but the following artificial field with E type has offset 0 and size 0, so it triggers the asserts that we don't move current position backwards. Fixed by ignoring is_empty_type (TREE_TYPE (field)) fields, all of their bits are padding which is what is added when skipping over to next field anyway. 2020-11-27 Jakub Jelinek <ja...@redhat.com> PR libstdc++/88101 * gimple-fold.c (clear_padding_type): Ignore fields with is_empty_type types. * g++.dg/torture/builtin-clear-padding-3.C: New test.
