Keep track of number of uses within the function per virtual register.
llvm-svn: 36214
diff --git a/llvm/lib/CodeGen/LiveVariables.cpp b/llvm/lib/CodeGen/LiveVariables.cpp
index 977bc5b..8a8185c 100644
--- a/llvm/lib/CodeGen/LiveVariables.cpp
+++ b/llvm/lib/CodeGen/LiveVariables.cpp
@@ -141,6 +141,7 @@
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) {