New failures: FAIL: g++.dg/ubsan/pr59415.C -O2 -flto -fno-use-linker-plugin -flto-partition=none (test for excess errors) FAIL: g++.dg/ubsan/pr59415.C -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects (test for excess errors) New passes: