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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-02-14 23:15:38 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-02-14 23:15:38 +0000 |
| commit | 1dd377d8c8f5ba6e2c26221f372843d4e1663c4d (patch) | |
| tree | f5f9cc9a3353c17ee6f854651332ac4378fe12b5 /llvm/lib/CodeGen/CalcSpillWeights.cpp | |
| parent | 30583986553220a2fa299913a16c3b057e32ec80 (diff) | |
| download | bcm5719-llvm-1dd377d8c8f5ba6e2c26221f372843d4e1663c4d.tar.gz bcm5719-llvm-1dd377d8c8f5ba6e2c26221f372843d4e1663c4d.zip | |
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.
llvm-svn: 125530
Diffstat (limited to 'llvm/lib/CodeGen/CalcSpillWeights.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/CalcSpillWeights.cpp | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/CalcSpillWeights.cpp b/llvm/lib/CodeGen/CalcSpillWeights.cpp index 6b57a07500c..76bb3d148b0 100644 --- a/llvm/lib/CodeGen/CalcSpillWeights.cpp +++ b/llvm/lib/CodeGen/CalcSpillWeights.cpp @@ -174,8 +174,7 @@ void VirtRegAuxInfo::CalculateWeightAndHint(LiveInterval &li) { totalWeight *= 0.5F; } - li.weight = totalWeight; - lis_.normalizeSpillWeight(li); + li.weight = normalizeSpillWeight(totalWeight, li.getSize()); } void VirtRegAuxInfo::CalculateRegClass(unsigned reg) { |
