1 files changed, 10 insertions, 0 deletions
diff --git a/js/src/jit/Lowering.cpp b/js/src/jit/Lowering.cpp
index 730697163..709de9987 100644
--- a/js/src/jit/Lowering.cpp
+++ b/js/src/jit/Lowering.cpp
@@ -4171,6 +4171,16 @@ LIRGenerator::visitHasClass(MHasClass* ins)
 }
 
 void
+LIRGenerator::visitGuardToClass(MGuardToClass* ins)
+{
+    MOZ_ASSERT(ins->object()->type() == MIRType::Object);
+    MOZ_ASSERT(ins->type() == MIRType::ObjectOrNull|| ins->type() == MIRType::Object);
+    LGuardToClass* lir = new(alloc()) LGuardToClass(useRegister(ins->object()), temp());
+    assignSnapshot(lir, Bailout_TypeBarrierO);
+    define(lir, ins);
+}
+
+void
 LIRGenerator::visitWasmAddOffset(MWasmAddOffset* ins)
 {
     MOZ_ASSERT(ins->base()->type() == MIRType::Int32);