diff options
Diffstat (limited to 'vaporize/RegisterAlloc.java')
| -rw-r--r-- | vaporize/RegisterAlloc.java | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/vaporize/RegisterAlloc.java b/vaporize/RegisterAlloc.java index ae5826b..100d6c4 100644 --- a/vaporize/RegisterAlloc.java +++ b/vaporize/RegisterAlloc.java @@ -9,8 +9,10 @@ public class RegisterAlloc { private String[] all_registers; private Stack<String> free_registers; private TreeSet<LIRVar> active; + private int spill_start; public RegisterAlloc(LIRDict intervals, String[] all_registers) { + this.spill_start = 14; this.intervals = intervals; this.all_registers = all_registers; this.free_registers = new Stack<String>(); @@ -68,13 +70,11 @@ public class RegisterAlloc { } private void spillAtInterval(LIRVar interval) { - MinimalLogger.severe(String.format("Ran out of free registers, but a spill for %s was not performed!", + // You can make this spill optimally (the sarkar linearscan algorithm) + MinimalLogger.severe(String.format("Ran out of free registers, had to spill %s!", interval.toString())); this.intervals.addSpilledNum(); - // LIRVar spill = this.active.get(this.active.length()-1); - // if (spill.getLastUse() > interval.getLastUse()) { - // ; - // } + interval.assignRegister(String.format("local[%d]", this.spill_start++)); } } |