1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/jit/MIR.h b/js/src/jit/MIR.h
index dcb08c317..3caa7e357 100644
--- a/js/src/jit/MIR.h
+++ b/js/src/jit/MIR.h
@@ -8464,6 +8464,34 @@ class MLambdaArrow
     }
 };
 
+class MSetFunName
+  : public MAryInstruction<2>,
+    public MixPolicy<ObjectPolicy<0>, BoxPolicy<1> >::Data
+{
+    uint8_t prefixKind_;
+
+    explicit MSetFunName(MDefinition* fun, MDefinition* name, uint8_t prefixKind)
+      : prefixKind_(prefixKind)
+    {
+        initOperand(0, fun);
+        initOperand(1, name);
+        setResultType(MIRType::None);
+    }
+
+  public:
+    INSTRUCTION_HEADER(SetFunName)
+    TRIVIAL_NEW_WRAPPERS
+    NAMED_OPERANDS((0, fun), (1, name))
+
+    uint8_t prefixKind() const {
+        return prefixKind_;
+    }
+
+    bool possiblyCalls() const override {
+        return true;
+    }
+};
+
 // Returns obj->slots.
 class MSlots
   : public MUnaryInstruction,