Regressions on trunk at revision 243314 vs revision 243296

[Intel Automatic Testing System [ia32 Core AVX2]]

New failures:

New passes:
FAIL: libstdc++-prettyprinters/cxx17.cc print v0
FAIL: libstdc++-prettyprinters/cxx17.cc print v1
FAIL: libstdc++-prettyprinters/cxx17.cc print v3
FAIL: libstdc++-prettyprinters/cxx17.cc print v4
FAIL: libstdc++-prettyprinters/cxx17.cc print vref