Regressions on trunk at revision 218685 vs revision 218663

[H.J. Lu Intel64 -fpic -mcmodel=medium -mcmodel=large]

New failures:
FAIL: c-c++-common/ubsan/object-size-9.c   -O2  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff340ea2bc with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fffb526d51c with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fffe11605bc with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fffbd52be8c with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fffdb3a6b8c with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7ffffb697ecc with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff4f5a77bc with insufficient space for an object of type 'char'
FAIL: g++.dg/cpp1y/pr63996.C  -std=c++14 (test for excess errors)
FAIL: g++.dg/cpp1y/pr63996.C  -std=c++14 (test for excess errors)
FAIL: g++.dg/cpp1y/pr63996.C  -std=c++14 (test for excess errors)
FAIL: g++.dg/cpp1y/pr63996.C  -std=c++14 (test for excess errors)
FAIL: g++.dg/cpp1y/pr63996.C  -std=c++14 (test for excess errors)
FAIL: libitm.c/stackundo.c (test for excess errors)
FAIL: libitm.c/stackundo.c (test for excess errors)
FAIL: libitm.c/stackundo.c (test for excess errors)

New passes:
FAIL: c-c++-common/ubsan/object-size-9.c   -O2  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff1d6185cc with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff68a4df2c with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff6c88a09c with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff0b149f4c with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff3ef7608c with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff94a6365c with insufficient space for an object of type 'char'
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff842fe97c with insufficient space for an object of type 'char'
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O0  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O0  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O0  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O0  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O0  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O1  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O1  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O1  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O1  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O1  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O3 -fomit-frame-pointer  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O3 -fomit-frame-pointer  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O3 -fomit-frame-pointer  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O3 -fomit-frame-pointer  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O3 -fomit-frame-pointer  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O3 -g  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O3 -g  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O3 -g  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O3 -g  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -O3 -g  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -Os  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -Os  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -Os  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -Os  execution test
FAIL: g++.dg/ubsan/cxx1y-vla.C   -Os  execution test
ERROR: Couldn't find library file target-utils.exp.
ERROR: Couldn't find library file target-utils.exp.
ERROR: could not compile testsuite_abi.cc
ERROR: could not compile testsuite_abi.cc
ERROR: could not compile testsuite_abi.cc
ERROR: could not compile testsuite_abi.cc
ERROR: could not compile testsuite_shared.cc
ERROR: could not compile testsuite_shared.cc
ERROR: could not compile testsuite_shared.cc
ERROR: could not compile testsuite_shared.cc
ERROR: tcl error sourcing /export/gnu/import/git/gcc-test-intel64/src-trunk/libstdc++-v3/testsuite/libstdc++-dg/conformance.exp.
ERROR: tcl error sourcing /export/gnu/import/git/gcc-test-intel64/src-trunk/libstdc++-v3/testsuite/libstdc++-dg/conformance.exp.
ERROR: tcl error sourcing /export/gnu/import/git/gcc-test-intel64/src-trunk/libstdc++-v3/testsuite/libstdc++-dg/conformance.exp.
ERROR: tcl error sourcing /export/gnu/import/git/gcc-test-intel64/src-trunk/libstdc++-v3/testsuite/libstdc++-dg/conformance.exp.
ERROR: tcl error sourcing /export/gnu/import/git/gcc-test-intel64/src-trunk/libstdc++-v3/testsuite/libstdc++-prettyprinters/prettyprinters.exp.
ERROR: tcl error sourcing /export/gnu/import/git/gcc-test-intel64/src-trunk/libstdc++-v3/testsuite/libstdc++-prettyprinters/prettyprinters.exp.
ERROR: tcl error sourcing /export/gnu/import/git/gcc-test-intel64/src-trunk/libstdc++-v3/testsuite/libstdc++-prettyprinters/prettyprinters.exp.
ERROR: tcl error sourcing /export/gnu/import/git/gcc-test-intel64/src-trunk/libstdc++-v3/testsuite/libstdc++-prettyprinters/prettyprinters.exp.