inline-asm/10123: inconsistent operand constraints cause ICE at -O0

[Jonah Graham]

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&p
r=10123

Earlier I filed the above bug report, but now I think that 10012 and 9910
are still the same issue. All three of them try assigning to the 'e'
constraint, which is a constant type extra constraint on x86.

Perhaps two of the three can be closed. Probably mine (10123) and 10012 as
there is much less information in them.