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-rw-r--r--contrib/llvm/lib/CodeGen/CalcSpillWeights.cpp32
1 files changed, 0 insertions, 32 deletions
diff --git a/contrib/llvm/lib/CodeGen/CalcSpillWeights.cpp b/contrib/llvm/lib/CodeGen/CalcSpillWeights.cpp
index e6b3bbc..ea16a25 100644
--- a/contrib/llvm/lib/CodeGen/CalcSpillWeights.cpp
+++ b/contrib/llvm/lib/CodeGen/CalcSpillWeights.cpp
@@ -185,35 +185,3 @@ void VirtRegAuxInfo::CalculateWeightAndHint(LiveInterval &li) {
li.weight = normalizeSpillWeight(totalWeight, li.getSize());
}
-
-void VirtRegAuxInfo::CalculateRegClass(unsigned reg) {
- MachineRegisterInfo &MRI = MF.getRegInfo();
- const TargetInstrInfo *TII = MF.getTarget().getInstrInfo();
- const TargetRegisterInfo *TRI = MF.getTarget().getRegisterInfo();
- const TargetRegisterClass *OldRC = MRI.getRegClass(reg);
- const TargetRegisterClass *NewRC = TRI->getLargestLegalSuperClass(OldRC);
-
- // Stop early if there is no room to grow.
- if (NewRC == OldRC)
- return;
-
- // Accumulate constraints from all uses.
- for (MachineRegisterInfo::reg_nodbg_iterator I = MRI.reg_nodbg_begin(reg),
- E = MRI.reg_nodbg_end(); I != E; ++I) {
- // TRI doesn't have accurate enough information to model this yet.
- if (I.getOperand().getSubReg())
- return;
- // Inline asm instuctions don't remember their constraints.
- if (I->isInlineAsm())
- return;
- const TargetRegisterClass *OpRC =
- TII->getRegClass(I->getDesc(), I.getOperandNo(), TRI);
- if (OpRC)
- NewRC = getCommonSubClass(NewRC, OpRC);
- if (!NewRC || NewRC == OldRC)
- return;
- }
- DEBUG(dbgs() << "Inflating " << OldRC->getName() << ':' << PrintReg(reg)
- << " to " << NewRC->getName() <<".\n");
- MRI.setRegClass(reg, NewRC);
-}
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