Regressions on trunk at revision 229790 vs revision 229734

[H.J. Lu x32]

New failures:
FAIL: gcc.dg/guality/param-3.c   -O1  line 20 str.pa == 31415927
FAIL: gcc.dg/guality/param-3.c   -O1  line 20 str.pb == 27182818
FAIL: gcc.dg/guality/pr41447-1.c   -O2  execution test
FAIL: gcc.dg/guality/pr41447-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: gcc.dg/guality/pr41447-1.c   -O3 -g  execution test
FAIL: gcc.dg/guality/pr41447-1.c   -Os  execution test
FAIL: gcc.dg/guality/pr41616-1.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: gcc.dg/guality/pr43051-1.c   -O1  line 34 c == &a[0]
FAIL: gcc.dg/guality/pr43051-1.c   -O1  line 41 e == &a[1]
FAIL: gcc.dg/guality/pr43051-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 36 e == &a[1]
FAIL: gcc.dg/guality/pr43051-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 41 e == &a[1]
FAIL: gcc.dg/guality/pr43051-1.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 36 e == &a[1]
FAIL: gcc.dg/guality/pr43051-1.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 41 e == &a[1]
FAIL: gcc.dg/guality/pr43051-1.c   -O2  line 36 e == &a[1]
FAIL: gcc.dg/guality/pr43051-1.c   -O2  line 41 e == &a[1]
FAIL: gcc.dg/guality/pr43051-1.c   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  line 39 c == &a[0]
FAIL: gcc.dg/guality/pr43051-1.c   -Os  line 34 c == &a[0]
FAIL: gcc.dg/guality/pr43051-1.c   -Os  line 36 e == &a[1]
FAIL: gcc.dg/guality/pr43051-1.c   -Os  line 39 c == &a[0]
FAIL: gcc.dg/guality/pr43051-1.c   -Os  line 41 e == &a[1]
FAIL: gcc.dg/guality/vla-1.c   -O1  line 17 sizeof (a) == 6
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 -fuse-linker-plugin -fno-fat-lto-objects  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -O2  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -O3 -g  line 17 sizeof (a) == 6
FAIL: gcc.dg/guality/vla-1.c   -Os  line 17 sizeof (a) == 6

New passes: