Add methods to add implicit def use operands to a MI.

llvm-svn: 31675

2 files changed, 13 insertions, 10 deletions

diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp
index ba75e736239..65c164a4eec 100644
--- a/llvm/lib/CodeGen/MachineInstr.cpp
+++ b/llvm/lib/CodeGen/MachineInstr.cpp
@@ -125,6 +125,18 @@ bool MachineOperand::isIdenticalTo(const MachineOperand &Other) const {
   }
 }
 
+/// addImplicitDefUseOperands - Add all implicit def and use operands to
+/// this instruction.
+void MachineInstr::addImplicitDefUseOperands() {
+  const TargetInstrDescriptor &TID = TargetInstrDescriptors[Opcode];
+  if (TID.ImplicitDefs)
+    for (const unsigned *ImpDefs = TID.ImplicitDefs; *ImpDefs; ++ImpDefs)
+      addRegOperand(*ImpDefs, true, true);
+  if (TID.ImplicitUses)
+    for (const unsigned *ImpUses = TID.ImplicitUses; *ImpUses; ++ImpUses)
+      addRegOperand(*ImpUses, false, true);
+}
+
 
 void MachineInstr::dump() const {
   std::cerr << "  " << *this;
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
index 307b2b9b70c..cafe3b6ffee 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
@@ -442,16 +442,7 @@ void ScheduleDAG::EmitNode(SDNode *Node,
     }
 
     // Emit implicit def / use operands.
-    if (II.ImplicitDefs) {
-      for (const unsigned *ImplicitDefs = II.ImplicitDefs;
-           *ImplicitDefs; ++ImplicitDefs)
-        MI->addRegOperand(*ImplicitDefs, true, true);
-    }
-    if (II.ImplicitUses) {
-      for (const unsigned *ImplicitUses = II.ImplicitUses;
-           *ImplicitUses; ++ImplicitUses)
-        MI->addRegOperand(*ImplicitUses, false, true);
-    }
+    MI->addImplicitDefUseOperands();
 
     // Now that we have emitted all operands, emit this instruction itself.
     if ((II.Flags & M_USES_CUSTOM_DAG_SCHED_INSERTION) == 0) {