diff --git a/src/alloy/backend/x64/x64_emitter.cc b/src/alloy/backend/x64/x64_emitter.cc
index ace7964a6..6daba0195 100644
--- a/src/alloy/backend/x64/x64_emitter.cc
+++ b/src/alloy/backend/x64/x64_emitter.cc
@@ -414,6 +414,20 @@ void X64Emitter::CallNative(uint64_t(*fn)(void* raw_context, uint64_t arg0), uin
   ReloadEDX();
 }
 
+void X64Emitter::CallNativeSafe(void* fn) {
+    // rcx = context
+    // rdx = target host function
+    // r8  = arg0
+    // r9  = arg1
+    mov(rdx, reinterpret_cast<uint64_t>(fn));
+    auto thunk = backend()->guest_to_host_thunk();
+    mov(rax, reinterpret_cast<uint64_t>(thunk));
+    call(rax);
+    ReloadECX();
+    ReloadEDX();
+    // rax = host return
+}
+
 void X64Emitter::SetReturnAddress(uint64_t value) {
   mov(qword[rsp + StackLayout::GUEST_CALL_RET_ADDR], value);
 }
diff --git a/src/alloy/backend/x64/x64_emitter.h b/src/alloy/backend/x64/x64_emitter.h
index 2a56411c8..12c8c0310 100644
--- a/src/alloy/backend/x64/x64_emitter.h
+++ b/src/alloy/backend/x64/x64_emitter.h
@@ -127,6 +127,7 @@ public:
   void CallNative(uint64_t(*fn)(void* raw_context));
   void CallNative(uint64_t(*fn)(void* raw_context, uint64_t arg0));
   void CallNative(uint64_t(*fn)(void* raw_context, uint64_t arg0), uint64_t arg0);
+  void CallNativeSafe(void* fn);
   void SetReturnAddress(uint64_t value);
   void ReloadECX();
   void ReloadEDX();
diff --git a/src/alloy/backend/x64/x64_sequences.cc b/src/alloy/backend/x64/x64_sequences.cc
index 4f7f55a18..f7fbf6997 100644
--- a/src/alloy/backend/x64/x64_sequences.cc
+++ b/src/alloy/backend/x64/x64_sequences.cc
@@ -3489,7 +3489,7 @@ EMITTER(POW2_F32, MATCH(I<OPCODE_POW2, F32<>, F32<>>)) {
   static void Emit(X64Emitter& e, const EmitArgType& i) {
     XEASSERTALWAYS();
     e.lea(e.r8, e.StashXmm(i.src1));
-    e.CallNative(EmulatePow2);
+    e.CallNativeSafe(EmulatePow2);
     e.vmovaps(i.dest, e.xmm0);
   }
 };
@@ -3501,7 +3501,7 @@ EMITTER(POW2_F64, MATCH(I<OPCODE_POW2, F64<>, F64<>>)) {
   static void Emit(X64Emitter& e, const EmitArgType& i) {
     XEASSERTALWAYS();
     e.lea(e.r8, e.StashXmm(i.src1));
-    e.CallNative(EmulatePow2);
+    e.CallNativeSafe(EmulatePow2);
     e.vmovaps(i.dest, e.xmm0);
   }
 };
@@ -3515,7 +3515,7 @@ EMITTER(POW2_V128, MATCH(I<OPCODE_POW2, V128<>, V128<>>)) {
   }
   static void Emit(X64Emitter& e, const EmitArgType& i) {
     e.lea(e.r8, e.StashXmm(i.src1));
-    e.CallNative(EmulatePow2);
+    e.CallNativeSafe(EmulatePow2);
     e.vmovaps(i.dest, e.xmm0);
   }
 };
@@ -3540,7 +3540,7 @@ EMITTER(LOG2_F32, MATCH(I<OPCODE_LOG2, F32<>, F32<>>)) {
   static void Emit(X64Emitter& e, const EmitArgType& i) {
     XEASSERTALWAYS();
     e.lea(e.r8, e.StashXmm(i.src1));
-    e.CallNative(EmulateLog2);
+    e.CallNativeSafe(EmulateLog2);
     e.vmovaps(i.dest, e.xmm0);
   }
 };
@@ -3552,7 +3552,7 @@ EMITTER(LOG2_F64, MATCH(I<OPCODE_LOG2, F64<>, F64<>>)) {
   static void Emit(X64Emitter& e, const EmitArgType& i) {
     XEASSERTALWAYS();
     e.lea(e.r8, e.StashXmm(i.src1));
-    e.CallNative(EmulateLog2);
+    e.CallNativeSafe(EmulateLog2);
     e.vmovaps(i.dest, e.xmm0);
   }
 };
@@ -3565,9 +3565,8 @@ EMITTER(LOG2_V128, MATCH(I<OPCODE_LOG2, V128<>, V128<>>)) {
     return result;
   }
   static void Emit(X64Emitter& e, const EmitArgType& i) {
-    XEASSERTALWAYS();
     e.lea(e.r8, e.StashXmm(i.src1));
-    e.CallNative(EmulateLog2);
+    e.CallNativeSafe(EmulateLog2);
     e.vmovaps(i.dest, e.xmm0);
   }
 };