Yet another new verify_ssa failure for Ada

[Richard Kenner]

This one popped up over the weekend.  I did a "cvs update" an hour ago.

../../xgcc -B../../ -c -g -O2      -W -Wall -gnatpg  a-calend.adb -o a-calend.o
a-calend.adb: In function `Ada.Calendar.Split':
a-calend.adb:262: error: Definition in block 12 does not dominate use in block 3
for SSA_NAME: T.191<D893>_97
in statement:
T.199<D901>_107 = T.191<D893>_97 /[fl] 1767225600000000000;