LTO error in gcc-trunk

[niXman]

Hi,

LTO work as expected in gcc-4.7.0,4.7.1,4.7.2,4.7-branch built for
i686-w64-mingw32 & x86_64-w64-mingw32.
But gcc-trunk(4.8.0) produce this error:
> gcc -m32 -O2 -flto lto_test.cpp lto_int.o -olto_test.exe
> lto1.exe: internal compiler error: cannot read LTO decls from C:\Temp\ccvPemZc.o
> lto-wrapper: D:\mingw32\bin\gcc.exe returned 1 exit status
> d:/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.8.0/../../../../i686-w64-mingw32/bin/ld.exe: lto-wrapper failed
> collect2.exe: error: ld returned 1 exit status

Tell me please, how can I get more information about the error and
causing this error may occur when using gcc-trunk?

Thanks.


-- 
Regards,
niXman
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