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

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36214 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-04-17 20:22:11 +00:00
parent e060b5385f
commit 38b7ca6651
2 changed files with 6 additions and 1 deletions
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lib/CodeGen/LiveVariables.cpp
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@@ -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) {