Regressions on trunk at revision 221074 vs revision 221065

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

New failures:
FAIL: c-c++-common/ubsan/object-size-9.c   -O2  output pattern test
FAIL: c-c++-common/ubsan/object-size-9.c   -O2  output pattern test
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  output pattern test
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  output pattern test

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 0x7ffee177c84c 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 0x7ffef546fd6c 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 0x7ffc8d64948c 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 0x7fff7315b39c with insufficient space for an object of type 'char'
FAIL: gcc.target/i386/pie-copyrelocs-1.c scan-assembler-not glob_a@GOTPCREL
FAIL: gcc.target/i386/pie-copyrelocs-1.c scan-assembler-not glob_a@GOTPCREL
FAIL: gcc.target/i386/pie-copyrelocs-2.c scan-assembler-not glob_a@GOTPCREL
FAIL: gcc.target/i386/pie-copyrelocs-2.c scan-assembler-not glob_a@GOTPCREL
FAIL: gcc.target/i386/pr32219-5.c scan-assembler movl[ \t]xxx\\(%rip\\), %eax
FAIL: gcc.target/i386/pr32219-5.c scan-assembler-not xxx@GOTPCREL
FAIL: gcc.target/i386/pr32219-7.c scan-assembler movl[ \t]xxx\\(%rip\\), %eax
FAIL: gcc.target/i386/pr32219-7.c scan-assembler-not xxx@GOTPCREL
FAIL: gcc.target/i386/pr54445-2.c scan-assembler mov(b|zbl)[ \t](%fs:)?(-1\\+)?tls_array@tpoff(-1)?\\(%
FAIL: gcc.target/i386/pr56564-2.c scan-tree-dump-times optimized "&s" 0
FAIL: gcc.target/i386/pr56564-2.c scan-tree-dump-times optimized "return 0" 2