impossible reload

[Jeffrey A Law]

  In message < Pine.LNX.3.95.980215153336.13943K-100000@misg.org >you write:
  > Hello All,
  > 
  > 	I am in the middle of writing a new machine desc. I am running
  > into the following problem when I turn on the optimization: 
  > 
  > 	../z.c:6: `asm' operand requires impossible reload
  > 
  > 	What do you think I overlooked?
Sounds like you've got problems in reload, possibly due to 
missing register classes or problems with tiny register classes,
etc.

jeff