Regressions on trunk at revision 174993 vs revision 174989

[H.J. Lu Intel64 Core 2/i7]

New failures:
FAIL: gcc.dg/guality/pr36728-1.c  -O2 -flto  line 12 arg1 == 1
FAIL: gcc.dg/guality/pr36728-1.c  -O2 -flto  line 14 arg1 == 1
FAIL: gcc.dg/guality/pr36728-1.c  -O2 -flto -flto-partition=none  line 12 arg1 == 1
FAIL: gcc.dg/guality/pr36728-1.c  -O2 -flto -flto-partition=none  line 14 arg1 == 1
FAIL: gcc.dg/guality/pr45003-1.c  -O1  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-1.c  -O1  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-1.c  -O2  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-1.c  -O2  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-1.c  -O2 -flto  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-1.c  -O2 -flto  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-1.c  -O2 -flto -flto-partition=none  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-1.c  -O2 -flto -flto-partition=none  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-1.c  -O3 -fomit-frame-pointer  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-1.c  -O3 -fomit-frame-pointer  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-1.c  -O3 -g  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-1.c  -O3 -g  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-1.c  -Os  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-1.c  -Os  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O1  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O1  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2 -flto  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2 -flto  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2 -flto -flto-partition=none  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O2 -flto -flto-partition=none  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O3 -fomit-frame-pointer  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O3 -fomit-frame-pointer  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -O3 -g  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -O3 -g  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-2.c  -Os  line 10 a == 0x8078
FAIL: gcc.dg/guality/pr45003-2.c  -Os  line 19 a == 0xffff8078
FAIL: gcc.dg/guality/pr45003-3.c  -O1  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O1  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -O2  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O2  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -O2 -flto  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O2 -flto  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -O2 -flto -flto-partition=none  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O2 -flto -flto-partition=none  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -O3 -fomit-frame-pointer  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O3 -fomit-frame-pointer  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -O3 -g  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -O3 -g  line 19 a == 0x8078
FAIL: gcc.dg/guality/pr45003-3.c  -Os  line 10 a == -32648
FAIL: gcc.dg/guality/pr45003-3.c  -Os  line 19 a == 0x8078
FAIL: gcc.dg/guality/sra-1.c  -O1  line 43 a.i == 4
FAIL: gcc.dg/guality/sra-1.c  -O1  line 43 a.j == 14
FAIL: gcc.dg/guality/vla-1.c  -O1  line 17 i == 5
FAIL: gcc.dg/guality/vla-1.c  -O1  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto  line 17 i == 5
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto -flto-partition=none  line 17 i == 5
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto -flto-partition=none  line 17 sizeof (a) == 6

New passes: