diff options
Diffstat (limited to 'scheduling/InstructionScheduler.ml')
| -rw-r--r-- | scheduling/InstructionScheduler.ml | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/scheduling/InstructionScheduler.ml b/scheduling/InstructionScheduler.ml index e2413bc0..a881df68 100644 --- a/scheduling/InstructionScheduler.ml +++ b/scheduling/InstructionScheduler.ml @@ -486,7 +486,7 @@ let reg_pres_scheduler (problem : problem) : solution option = (* ALL MENTIONS TO cnt ARE PLACEHOLDERS *) let cnt = ref 0 in - + let attempt_scheduling ready usages = let result = ref (-1) in try @@ -500,7 +500,7 @@ let reg_pres_scheduler (problem : problem) : solution option = * print_int (Hashtbl.length live_regs); * print_newline (); * flush stdout; *) - if !cnt < 5 && avlregs <= regs_thresholds.(i) + if avlregs <= regs_thresholds.(i) then ( let maybe = InstrSet.sched_CSR i ready usages in (* print_string "maybe\n"; @@ -518,7 +518,19 @@ let reg_pres_scheduler (problem : problem) : solution option = then (vector_subtract usages.(maybe) current_resources; result := maybe) - else incr cnt); + else + if not !Clflags.option_regpres_temp + then + (InstrSet.iter (fun ins -> + if vector_less_equal usages.(ins) current_resources && + List.fold_left (fold_delta i) 0 mentions.(maybe) >= 0 + then result := ins + ) ready; + if !result <> -1 then + vector_subtract usages.(!result) current_resources) + else + (incr cnt) + ); raise Exit)) available_regs; InstrSet.iter (fun i -> if vector_less_equal usages.(i) current_resources @@ -543,7 +555,8 @@ let reg_pres_scheduler (problem : problem) : solution option = * print_int i; * print_newline (); * flush stdout; *) - cnt := 0; + if !Clflags.option_regpres_temp then + cnt := 0; List.iter (fun (r,b) -> if b then (match Hashtbl.find_opt counts r with |