1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMOptimizeBarriersPass.cpp b/lib/Target/ARM/ARMOptimizeBarriersPass.cpp
index 30baf4263c111..73dcb9641b613 100644
--- a/lib/Target/ARM/ARMOptimizeBarriersPass.cpp
+++ b/lib/Target/ARM/ARMOptimizeBarriersPass.cpp
@@ -27,6 +27,11 @@ public:
 
   bool runOnMachineFunction(MachineFunction &Fn) override;
 
+  MachineFunctionProperties getRequiredProperties() const override {
+    return MachineFunctionProperties().set(
+        MachineFunctionProperties::Property::AllVRegsAllocated);
+  }
+
   const char *getPassName() const override {
     return "optimise barriers pass";
   }
@@ -46,6 +51,9 @@ static bool CanMovePastDMB(const MachineInstr *MI) {
 }
 
 bool ARMOptimizeBarriersPass::runOnMachineFunction(MachineFunction &MF) {
+  if (skipFunction(*MF.getFunction()))
+    return false;
+
   // Vector to store the DMBs we will remove after the first iteration
   std::vector<MachineInstr *> ToRemove;
   // DMBType is the Imm value of the first operand. It determines whether it's a