Regressions on trunk at revision 220353 vs revision 220035

[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 0xffedbf3c 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 0xffe70fbc with insufficient space for an object of type 'char'
FAIL: gcc.dg/uninit-19.c  (test for warnings, line 13)
FAIL: gcc.dg/uninit-19.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 0xffa8530c 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 0xffa1202c with insufficient space for an object of type 'char'
FAIL: gcc.target/i386/funcspec-5.c (test for excess errors)
FAIL: gcc.target/i386/fuse-caller-save-rec.c scan-assembler-not pop
FAIL: gcc.target/i386/fuse-caller-save-rec.c scan-assembler-not push
FAIL: gcc.target/i386/fuse-caller-save-rec.c scan-assembler-times addl\t%[re]?dx, %[re]?ax 1
FAIL: gcc.target/i386/fuse-caller-save-xmm.c scan-assembler-times addpd\t%xmm1, %xmm0 1
FAIL: gcc.target/i386/fuse-caller-save-xmm.c scan-assembler-times movapd\t%xmm0, %xmm1 1
FAIL: gcc.target/i386/fuse-caller-save.c scan-assembler-not pop
FAIL: gcc.target/i386/fuse-caller-save.c scan-assembler-not push
FAIL: gcc.target/i386/fuse-caller-save.c scan-assembler-times addl\t%[re]?d[ix], %[re]?ax 1
FAIL: gcc.target/i386/headmerge-1.c scan-assembler-times \\$120|, 120 1
FAIL: gcc.target/i386/headmerge-2.c scan-assembler-times \\$120|, 120 1
FAIL: gcc.target/i386/sibcall-6.c scan-assembler jmp[ \t]*.%eax