Regressions on trunk at revision 218405 vs revision 218382

[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 0xffb4acec 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 0xffe2b9cc with insufficient space for an object of type 'char'
FAIL: gcc.dg/guality/pr54970.c   -Os  line 45 p[-2] == 4
FAIL: gcc.dg/guality/pr54970.c   -Os  line 45 q[-1] == 4

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 0xffc63c4c 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 0xffdbe41c with insufficient space for an object of type 'char'
FAIL: gcc.dg/guality/vla-1.c   -O0  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -O0  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c   -O1  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -O1  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c   -O2  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -O2  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c   -O3 -fomit-frame-pointer  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -O3 -fomit-frame-pointer  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c   -O3 -g  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -O3 -g  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c   -Os  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -Os  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-2.c   -O0  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O0  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O1  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O1  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O2  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O2  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O3 -fomit-frame-pointer  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O3 -fomit-frame-pointer  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O3 -g  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -O3 -g  line 25 sizeof (a) == 6 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -Os  line 16 sizeof (a) == 5 * sizeof (int)
FAIL: gcc.dg/guality/vla-2.c   -Os  line 25 sizeof (a) == 6 * sizeof (int)