Regressions on native/master at commit r13-3359 vs commit r13-3350 on Linux/x86_64

[H. J. Lu]

Regressions on native/master at commit r13-3359 vs commit r13-3350 on Linux/x86_64
New failures:
FAIL: libgomp.c++/loop-13.C execution test
FAIL: libgomp.c++/loop-13.C execution test
FAIL: libgomp.c++/loop-13.C (internal compiler error: verify_ssa failed)
FAIL: libgomp.c++/loop-14.C execution test
FAIL: libgomp.c++/loop-14.C execution test
FAIL: libgomp.c++/loop-14.C (internal compiler error: verify_ssa failed)

New passes:
FAIL: gcc.dg/tree-ssa/forwprop-19.c scan-tree-dump-not forwprop1 "VEC_PERM_EXPR"
FAIL: gcc.dg/tree-ssa/forwprop-19.c scan-tree-dump-not forwprop1 "VEC_PERM_EXPR"
FAIL: gcc.dg/tree-ssa/forwprop-19.c scan-tree-dump-not forwprop1 "VEC_PERM_EXPR"
FAIL: libgomp.c++/loop-13.C (internal compiler error: in as_a, at is-a.h:242)
FAIL: libgomp.c++/loop-13.C (internal compiler error: in as_a, at is-a.h:242)
FAIL: libgomp.c++/loop-13.C (internal compiler error: in as_a, at is-a.h:242)
FAIL: libgomp.c++/loop-13.C (test for excess errors)
FAIL: libgomp.c++/loop-13.C (test for excess errors)
FAIL: libgomp.c++/loop-14.C (internal compiler error: in as_a, at is-a.h:242)
FAIL: libgomp.c++/loop-14.C (internal compiler error: in as_a, at is-a.h:242)
FAIL: libgomp.c++/loop-14.C (internal compiler error: in as_a, at is-a.h:242)
FAIL: libgomp.c++/loop-14.C (test for excess errors)
FAIL: libgomp.c++/loop-14.C (test for excess errors)