incorrect use of 0L constant in LDIV, LREM?

Hi,

Wouldn't the code for LDIV, LREM in instructions.m4.mc be correct if the 
test was for 0LL and not 0L?  Furthermore, since LL constants aren't 
allowed in ANSI C, shouldn't there be a test for both halves of the 
64-bit value?

Or am I missing something, such as the constant getting zero-extended by 
the compiler?

Cheers,
Chris