I'm sorry that I didn't trace the cfgrtl.c before I posting the question. Now I see that I can get the info again by calling compute_bb_for_insn().
On Sun, 14 Aug 2005 09:15:49 +0800, Ling-hua Tseng wrote > I'm porting the GCC 4.0.2 (2005-08-11 snapshot) to a new VLIW architecture. > > I figured out the `free_bb_for_insn()' is called before the reorg > pass, and I would like to use the CFG in the reorg pass for a reason. > > The reason is: > I would like to change flag_schedule_insns_after_reload to 0 by > the macro OVERRIDE_OPTIONS if it was set, and then I would like > to call the sched2 pass in some location of the hook TARGET_MACHINE_DEPENDENT_REORG. > Perhaps I will manually do some instruction scheduling in the > reorg pass in the future. > > So I have two questions: > > 1. Is it safe to move the line `free_bb_for_insn ();' to the > next line of `rest_of_handle_machine_reorg ();' ? > 2. If it is safe, would the GCC team like to move it to there > for allowing other ones can use CFG info in the reorg pass? > > By the way, I noticed that the ia64 port did something which is > similar to mine. But it do some effort for recoding something before > the reorg pass. Moreover, it's forced to call the `schedule_ebbs()' > however(I'd like to call `schedule_insns()'). > > Thanks a lot.
