Move CalculateRegClass to MRI::recomputeRegClass.

This function doesn't have anything to do with spill weights, and MRI
already has functions for manipulating the register class of a virtual
register.

llvm-svn: 137123

1 files changed, 4 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/LiveRangeEdit.cpp b/llvm/lib/CodeGen/LiveRangeEdit.cpp
index b385fb36bbf..b23f8516536 100644
--- a/llvm/lib/CodeGen/LiveRangeEdit.cpp
+++ b/llvm/lib/CodeGen/LiveRangeEdit.cpp
@@ -319,9 +319,12 @@ void LiveRangeEdit::calculateRegClassAndHint(MachineFunction &MF,
                                              LiveIntervals &LIS,
                                              const MachineLoopInfo &Loops) {
   VirtRegAuxInfo VRAI(MF, LIS, Loops);
+  MachineRegisterInfo &MRI = MF.getRegInfo();
   for (iterator I = begin(), E = end(); I != E; ++I) {
     LiveInterval &LI = **I;
-    VRAI.CalculateRegClass(LI.reg);
+    if (MRI.recomputeRegClass(LI.reg, MF.getTarget()))
+      DEBUG(dbgs() << "Inflated " << PrintReg(LI.reg) << " to "
+                   << MRI.getRegClass(LI.reg)->getName() << '\n');
     VRAI.CalculateWeightAndHint(LI);
   }
 }