Reserve G1 for frame offset stuff and use it to handle large stack frames.
For example, instead of emitting this:
test:
save -40112, %o6, %o6 ;; imm too large
add %i6, -40016, %o0 ;; imm too large
call caller
nop
restore %g0, %g0, %g0
retl
nop
emit this:
test:
sethi
4194264, %g1
or %g1, 848, %g1
save %o6, %g1, %o6
sethi
4194264, %g1
add %g1, %i6, %g1
add %i1, 944, %o0
call caller
nop
restore %g0, %g0, %g0
retl
nop
which doesn't cause the assembler to barf.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24880
91177308-0d34-0410-b5e6-
96231b3b80d8