[llvm-commits] CVS: llvm/lib/CodeGen/LiveInterval.cpp

[Evan Cheng]

Changes in directory llvm/lib/CodeGen:

LiveInterval.cpp updated: 1.43 -> 1.44
---
Log message:

Add a register allocation preference field; add a method to compute size of a live interval.

---
Diffs of the changes:  (+9 -0)

 LiveInterval.cpp |    9 +++++++++
 1 files changed, 9 insertions(+)


Index: llvm/lib/CodeGen/LiveInterval.cpp
diff -u llvm/lib/CodeGen/LiveInterval.cpp:1.43 llvm/lib/CodeGen/LiveInterval.cpp:1.44
--- llvm/lib/CodeGen/LiveInterval.cpp:1.43	Sat Dec 16 23:15:13 2006
+++ llvm/lib/CodeGen/LiveInterval.cpp	Tue Apr 17 15:25:11 2007
@@ -349,6 +349,8 @@
   ValueNumberInfo.clear();
   ValueNumberInfo.append(NewValueNumberInfo.begin(), NewValueNumberInfo.end());
   weight += Other.weight;
+  if (Other.preference && !preference)
+    preference = Other.preference;
 }
 
 /// MergeRangesInAsValue - Merge all of the intervals in RHS into this live
@@ -467,6 +469,13 @@
   }
 }
 
+unsigned LiveInterval::getSize() const {
+  unsigned Sum = 0;
+  for (const_iterator I = begin(), E = end(); I != E; ++I)
+    Sum += I->end - I->start;
+  return Sum;
+}
+
 std::ostream& llvm::operator<<(std::ostream& os, const LiveRange &LR) {
   return os << '[' << LR.start << ',' << LR.end << ':' << LR.ValId << ")";
 }