New failures: New passes: FAIL: g++.dg/ubsan/vla-1.C -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects execution test ERROR: couldn't compile regular expression pattern: quantifier operand invalid ERROR: tcl error sourcing /export/gnu/import/git/gcc-test-ia32/src-trunk/gcc/testsuite/g++.dg/lto/lto.exp.