Regressions on trunk at revision 205080 vs revision 205071

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

New failures:
FAIL: gcc.c-torture/execute/20000503-1.c compilation,  -O2 -flto -fno-use-linker-plugin -flto-partition=none 
FAIL: g++.dg/lto/20101014-1 cp_lto_20101014-1_0.o-cp_lto_20101014-1_0.o link, -O2 -flto -flto-partition=1to1 -fno-use-linker-plugin 

New passes:
FAIL: gcc.c-torture/execute/20000412-6.c compilation,  -O2 -flto -fno-use-linker-plugin -flto-partition=none 
FAIL: gcc.c-torture/execute/921124-1.c compilation,  -O2 -flto -fno-use-linker-plugin -flto-partition=none 
FAIL: gcc.c-torture/execute/931009-1.c compilation,  -O2 -flto -fno-use-linker-plugin -flto-partition=none 
FAIL: gcc.c-torture/execute/pr36343.c compilation,  -O2 -flto -fno-use-linker-plugin -flto-partition=none 
FAIL: gcc.dg/guality/sra-1.c  -O2  line 43 a.j == 14