Regressions on trunk at revision 154128 vs revision 154126

[H.J. Lu ia32]

New failures:
FAIL: g++.dg/abi/mangle2.C (internal compiler error)
FAIL: g++.dg/abi/mangle2.C (test for excess errors)
FAIL: g++.dg/lto/20081109 cp_lto_20081109_0.o-cp_lto_20081109_1.o execute -O2 -fwhopr
FAIL: g++.dg/lto/20090106 cp_lto_20090106_0.o-cp_lto_20090106_0.o link
FAIL: g++.dg/lto/20090106 cp_lto_20090106_0.o-cp_lto_20090106_0.o link
FAIL: g++.dg/lto/20091026-1 cp_lto_20091026-1_0.o-cp_lto_20091026-1_1.o link
FAIL: g++.dg/lto/20091026-1 cp_lto_20091026-1_0.o-cp_lto_20091026-1_1.o link
FAIL: g++.dg/lto/20091026-1 cp_lto_20091026-1_0.o-cp_lto_20091026-1_1.o link
FAIL: g++.dg/lto/20091026-1 cp_lto_20091026-1_0.o-cp_lto_20091026-1_1.o link
FAIL: g++.dg/torture/stackalign/unwind-2.C  -O1  execution test
FAIL: g++.dg/torture/stackalign/unwind-2.C  -O2  execution test
FAIL: g++.dg/torture/stackalign/unwind-2.C  -O2 -flto  execution test
FAIL: g++.dg/torture/stackalign/unwind-2.C  -O2 -fwhopr  execution test
FAIL: g++.old-deja/g++.other/linkage6.C (internal compiler error)
FAIL: g++.old-deja/g++.other/linkage6.C (test for excess errors)
FAIL: gcc.c-torture/execute/builtins/memmove-2.c compilation,  -O2 -fwhopr 
FAIL: gcc.c-torture/execute/builtins/sprintf-chk.c execution,  -O2 -fwhopr 
FAIL: gcc.c-torture/execute/builtins/stpcpy-chk.c execution,  -O2 -fwhopr 
FAIL: gcc.c-torture/execute/builtins/strcpy-chk.c execution,  -O2 -fwhopr 
FAIL: gcc.dg/pr34668-1.c (internal compiler error)
FAIL: gcc.dg/pr34668-1.c (test for excess errors)
FAIL: gcc.dg/struct/wo_prof_double_malloc.c (internal compiler error)
FAIL: gcc.dg/struct/wo_prof_double_malloc.c (test for excess errors)
FAIL: gfortran.dg/lto/20091028-1 f_lto_20091028-1_0.o-f_lto_20091028-1_1.o link
FAIL: gfortran.dg/lto/20091028-1 f_lto_20091028-1_0.o-f_lto_20091028-1_1.o link
FAIL: gfortran.dg/lto/20091028-1 f_lto_20091028-1_0.o-f_lto_20091028-1_1.o link
FAIL: gfortran.dg/lto/20091028-1 f_lto_20091028-1_0.o-f_lto_20091028-1_1.o link
FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link
FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link
FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link
FAIL: gfortran.dg/lto/20091028-2 f_lto_20091028-2_0.o-f_lto_20091028-2_1.o link
FAIL: gfortran.dg/lto/pr40725 f_lto_pr40725_0.o-f_lto_pr40725_1.o execute -O2 -flto
FAIL: gfortran.dg/lto/pr40725 f_lto_pr40725_0.o-f_lto_pr40725_1.o execute -O2 -fwhopr
FAIL: objc.dg/const-str-12.m (internal compiler error)
FAIL: objc.dg/const-str-12.m (test for excess errors)
FAIL: objc.dg/const-str-5.m (internal compiler error)
FAIL: objc.dg/const-str-5.m (test for excess errors)
FAIL: objc.dg/gnu-runtime-2.m (internal compiler error)
FAIL: objc.dg/gnu-runtime-2.m (test for excess errors)
FAIL: objc/execute/string1.m compilation,  -O0 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string1.m compilation,  -O1 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string1.m compilation,  -O2 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string1.m compilation,  -O3 -fomit-frame-pointer -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string1.m compilation,  -O3 -g -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string1.m compilation,  -Os -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string2.m compilation,  -O0 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string2.m compilation,  -O1 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string2.m compilation,  -O2 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string2.m compilation,  -O3 -fomit-frame-pointer -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string2.m compilation,  -O3 -g -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string2.m compilation,  -Os -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string3.m compilation,  -O0 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string3.m compilation,  -O1 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string3.m compilation,  -O2 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string3.m compilation,  -O3 -fomit-frame-pointer -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string3.m compilation,  -O3 -g -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string3.m compilation,  -Os -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string4.m compilation,  -O0 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string4.m compilation,  -O1 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string4.m compilation,  -O2 -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string4.m compilation,  -O3 -fomit-frame-pointer -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string4.m compilation,  -O3 -g -fgnu-runtime (internal compiler error)
FAIL: objc/execute/string4.m compilation,  -Os -fgnu-runtime (internal compiler error)

New passes: