Regressions on trunk at revision 182760 vs revision 182758

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

New failures:

New passes:
FAIL: gcc.dg/guality/pr43177.c  -O1  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O1  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O3 -fomit-frame-pointer  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O3 -fomit-frame-pointer  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O3 -g  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -O3 -g  line 24 x == 7
FAIL: gcc.dg/guality/pr43177.c  -Os  line 15 x == 7
FAIL: gcc.dg/guality/pr43177.c  -Os  line 24 x == 7