diff --git a/src/ir_opt/verification_pass.cpp b/src/ir_opt/verification_pass.cpp
index 8668a619..2de47a5a 100644
--- a/src/ir_opt/verification_pass.cpp
+++ b/src/ir_opt/verification_pass.cpp
@@ -4,6 +4,8 @@
  * General Public License version 2 or any later version.
  */
 
+#include <map>
+
 #include "common/assert.h"
 #include "frontend/ir/ir.h"
 #include "ir_opt/passes.h"
@@ -12,11 +14,26 @@ namespace Dynarmic {
 namespace Optimization {
 
 void VerificationPass(const IR::Block& block) {
-#if 0
     for (const auto& inst : block.instructions) {
-        inst->AssertValid();
+        for (size_t i = 0; i < inst.NumArgs(); i++) {
+            IR::Type t1 = inst.GetArg(i).GetType();
+            IR::Type t2 = IR::GetArgTypeOf(inst.GetOpcode(), i);
+            ASSERT(t1 == t2 || t1 == IR::Type::Opaque || t2 == IR::Type::Opaque);
+        }
+    }
+
+    std::map<IR::Inst*, size_t> actual_uses;
+    for (const auto& inst : block.instructions) {
+        for (size_t i = 0; i < inst.NumArgs(); i++) {
+            if (!inst.GetArg(i).IsImmediate()) {
+                actual_uses[inst.GetArg(i).GetInst()]++;
+            }
+        }
+    }
+
+    for (const auto& pair : actual_uses) {
+        ASSERT(pair.first->use_count == pair.second);
     }
-#endif
 }
 
 } // namespace Optimization