Regressions on lto at revision 150072 vs revision 150037

[H.J. Lu ia32]

New failures:
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
ERROR: (DejaGnu) proc "libgomp_target_compile lto17583.c lto17583.exe executable {{additional_flags=-O0 -flto}}" does not exist.

New passes:
FAIL: gcc.dg/Wshadow-3.c  (test for warnings, line 47)
FAIL: gcc.dg/Wshadow-3.c (test for excess errors)
FAIL: gcc.dg/pr36902.c  (test for warnings, line 47)
FAIL: gcc.dg/pr36902.c (test for excess errors)
ERROR: (DejaGnu) proc "libgomp_target_compile lto29750.c lto29750.exe executable {{additional_flags=-O0 -flto}}" does not exist.