Move more fragments of spill weight calculation into CalcSpillWeights.h
Simplify the spill weight calculation a bit by bypassing
getApproximateInstructionCount() and using LiveInterval::getSize() directly.
This changes the computed spill weights, but only by a constant factor in each
function. It should not affect how spill weights compare against each other, and
so it shouldn't affect code generation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125530 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CalcSpillWeights.cpp b/lib/CodeGen/CalcSpillWeights.cpp
index 6b57a07..76bb3d1 100644
--- a/lib/CodeGen/CalcSpillWeights.cpp
+++ b/lib/CodeGen/CalcSpillWeights.cpp
@@ -174,8 +174,7 @@
totalWeight *= 0.5F;
}
- li.weight = totalWeight;
- lis_.normalizeSpillWeight(li);
+ li.weight = normalizeSpillWeight(totalWeight, li.getSize());
}
void VirtRegAuxInfo::CalculateRegClass(unsigned reg) {