On Tue, 2006-05-09 at 22:16, Richard Kenner wrote:
> Can there be two consecutive insns that use cc0 after cc0 is set?
>
> No.
Yes. But only very very late in the compilation, once all normal
re-ordering and optimization has been completed. I think it's probably
final that folds out
Can a jump_insn use cc0 but not actually jump? The following
instruction is found in the H8 port.
(jump_insn 18 17 20
(set (reg:HI 3 r3)
(eq:HI (cc0)
(const_int 0
A jump_insn is supposed to modify the PC. That one doesn't, so
