1 files changed, 22 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp
index 2409e60..7e4a32f 100644
--- a/llvm/lib/CodeGen/MachineInstr.cpp
+++ b/llvm/lib/CodeGen/MachineInstr.cpp
@@ -794,6 +794,28 @@ bool MachineInstr::shouldUpdateAdditionalCallInfo() const {
   return isCandidateForAdditionalCallInfo();
 }
 
+template <typename Operand, typename Instruction>
+static iterator_range<
+    filter_iterator<Operand *, std::function<bool(Operand &Op)>>>
+getDebugOperandsForRegHelper(Instruction *MI, Register Reg) {
+  std::function<bool(Operand & Op)> OpUsesReg(
+      [Reg](Operand &Op) { return Op.isReg() && Op.getReg() == Reg; });
+  return make_filter_range(MI->debug_operands(), OpUsesReg);
+}
+
+iterator_range<filter_iterator<const MachineOperand *,
+                               std::function<bool(const MachineOperand &Op)>>>
+MachineInstr::getDebugOperandsForReg(Register Reg) const {
+  return getDebugOperandsForRegHelper<const MachineOperand, const MachineInstr>(
+      this, Reg);
+}
+
+iterator_range<
+    filter_iterator<MachineOperand *, std::function<bool(MachineOperand &Op)>>>
+MachineInstr::getDebugOperandsForReg(Register Reg) {
+  return getDebugOperandsForRegHelper<MachineOperand, MachineInstr>(this, Reg);
+}
+
 unsigned MachineInstr::getNumExplicitOperands() const {
   unsigned NumOperands = MCID->getNumOperands();
   if (!MCID->isVariadic())