bootstrap/4228

[arbonline]

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=4228&database=gcc

First of all, I select bootstrap instead of c but now I can't change it. 
It should be c.

The bug 4228 is produced in the file gcc/config/i386/i386.md. I don't
know why but if you coment the sections: "Convert setcc + movzbl to xor
+ setcc if operands don't overlap" at lines 9598 and 12600 the problem
disapears. I supose that this lines are wrong but I'm not sure.

Ian Blanes.