Keep track of number of uses within the function per virtual register.

llvm-svn: 36214
2007-04-17 20:22:11 +00:00
parent 9b91d98a30
commit 8387cf1100
2 changed files with 6 additions and 1 deletions
--- a/llvm/lib/CodeGen/LiveVariables.cpp
+++ b/llvm/lib/CodeGen/LiveVariables.cpp
@@ -141,6 +141,7 @@ void LiveVariables::HandleVirtRegUse(VarInfo &VRInfo, MachineBasicBlock *MBB,
  unsigned BBNum = MBB->getNumber();

  VRInfo.UsedBlocks[BBNum] = true;
+  VRInfo.NumUses++;

  // Check to see if this basic block is already a kill block...
  if (!VRInfo.Kills.empty() && VRInfo.Kills.back()->getParent() == MBB) {