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-rw-r--r--vm_core.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/vm_core.h b/vm_core.h
index 73ef51d..3ec0c10 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -1062,7 +1062,7 @@ typedef rb_control_frame_t *
(FUNC_FASTCALL(*rb_insn_func_t))(rb_execution_context_t *, rb_control_frame_t *);
#define VM_TAGGED_PTR_SET(p, tag) ((VALUE)(p) | (tag))
-#define VM_TAGGED_PTR_REF(v, mask) ((void *)((v) & ~mask))
+#define VM_TAGGED_PTR_REF(v, mask) ((void *)((VALUE)(v) & ~mask))
#define GC_GUARDED_PTR(p) VM_TAGGED_PTR_SET((p), 0x01)
#define GC_GUARDED_PTR_REF(p) VM_TAGGED_PTR_REF((p), 0x03)