Debug info shouldn't affect kills.

llvm-svn: 99637
2010-03-26 19:21:26 +00:00 · 2010-03-26 19:21:26 +00:00 · 6096d5a279
parent 5bc1c4bd4e
commit 6096d5a279
1 changed files with 3 additions and 0 deletions
--- a/llvm/lib/CodeGen/VirtRegRewriter.cpp
+++ b/llvm/lib/CodeGen/VirtRegRewriter.cpp
@ -572,6 +572,9 @@ static bool InvalidateRegDef(MachineBasicBlock::iterator I,
 static void UpdateKills(MachineInstr &MI, const TargetRegisterInfo* TRI,
                        BitVector &RegKills,
                        std::vector<MachineOperand*> &KillOps) {
+  // These do not affect kill info at all.
+  if (MI.isDebugValue())
+    return;
  for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) {
    MachineOperand &MO = MI.getOperand(i);
    if (!MO.isReg() || !MO.isUse() || MO.isUndef())