https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71460
--- Comment #13 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Richard Biener from comment #7) > Oh - I hope TYPE_MODE does not affect the ABI here ;) You might want to > double-check that (struct-layout tests plus call ABI) The patch introduces one testsuite failure with -m32: FAIL: g++.dg/torture/pr67581.C where: /home/uros/gcc-svn/trunk/gcc/testsuite/g++.dg/torture/pr67581.C:2:7: error: type transparent 'union U' cannot be made transparent because the type of the first field has a different ABI from the class overall I don't know if this is c++ frontend issue, where BLKmode should be allowed.
