Subreg-byte patches (was: Branching for GCC 3.0)

[Jeffrey A Law]

  In message < 20010109120858.R1120@devserv.devel.redhat.com >you write:
  > But this would not work for SPARC v9 ABI, because some values are
  > specifically passed in even and some values in odd SFmode registers (e.g.
  > float arguments are passed in %f1, %f3, ... while if passing small structur
  > containing some floats, they should be passed in the corresponding %fX
  > register, say struct { float f; int i; int j; float h; }; will be passed
  > as argument in f = %f0, i = %o0, j = upper 32 bits of %o1, h = %f3 ).
What a mess.  Ugh.  Nevermind, the simple solution won't work for this
ABI.

jeff