Regressions on trunk at revision 218748 vs revision 218737

[H.J. Lu ia32 -fpic]

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 0xffab74ec 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 0xffd7241c with insufficient space for an object of type 'char'

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 0xfff7092c 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 0xffd1f24c 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/torture/pr60474.C   -O1  (internal compiler error)
FAIL: g++.dg/torture/pr60474.C   -O1  (test for excess errors)
FAIL: g++.dg/torture/pr60474.C   -O2  (internal compiler error)
FAIL: g++.dg/torture/pr60474.C   -O2  (test for excess errors)
FAIL: g++.dg/torture/pr60474.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (internal compiler error)
FAIL: g++.dg/torture/pr60474.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: g++.dg/torture/pr60474.C   -O3 -fomit-frame-pointer  (internal compiler error)
FAIL: g++.dg/torture/pr60474.C   -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: g++.dg/torture/pr60474.C   -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (internal compiler error)
FAIL: g++.dg/torture/pr60474.C   -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
FAIL: g++.dg/torture/pr60474.C   -O3 -fomit-frame-pointer -funroll-loops  (internal compiler error)
FAIL: g++.dg/torture/pr60474.C   -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: g++.dg/torture/pr60474.C   -O3 -g  (internal compiler error)
FAIL: g++.dg/torture/pr60474.C   -O3 -g  (test for excess errors)
FAIL: g++.dg/torture/pr60474.C   -Os  (internal compiler error)
FAIL: g++.dg/torture/pr60474.C   -Os  (test for excess errors)
FAIL: gcc.target/i386/avx512vl-vmovdqa64-1.c scan-assembler-times vmovdqa64[ \\t]+[^{\n]*%ymm[0-9]+[^\n^x^y]*\\(.{5}(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx512vl-vmovdqa64-1.c scan-assembler-times vmovdqa64[ \\t]+\\([^\n]*%xmm[0-9]+(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx512vl-vmovdqa64-1.c scan-assembler-times vmovdqa64[ \\t]+\\([^\n]*%ymm[0-9]+(?:\n|[ \\t]+#) 1