Regressions on trunk at revision 157476 vs revision 157474

[H.J. Lu Intel64]

New failures:
FAIL: Thread_Sleep_2 -findirect-dispatch output - source compiled test

New passes:
FAIL: gcc.dg/guality/pr43077-1.c  -O2  line 42 varb == 2
FAIL: gcc.dg/guality/pr43077-1.c  -O2  line 42 varc == 3
FAIL: gcc.dg/guality/pr43077-1.c  -O2 -flto  line 42 varb == 2
FAIL: gcc.dg/guality/pr43077-1.c  -O2 -flto  line 42 varc == 3
FAIL: gcc.dg/guality/pr43077-1.c  -O2 -fwhopr  line 42 varb == 2
FAIL: gcc.dg/guality/pr43077-1.c  -O2 -fwhopr  line 42 varc == 3
FAIL: gcc.dg/guality/pr43077-1.c  -O3 -g  line 42 varb == 2
FAIL: gcc.dg/guality/pr43077-1.c  -O3 -g  line 42 varc == 3
FAIL: gcc.dg/guality/pr43077-1.c  -Os  line 42 varb == 2
FAIL: gcc.dg/guality/pr43077-1.c  -Os  line 42 varc == 3
FAIL: gcc.dg/guality/vla-1.c  -O1  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O2  line 24 sizeof (a) == 17 * sizeof (short)
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 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -Os  line 24 sizeof (a) == 17 * sizeof (short)