diff --git a/src/Reactor/LLVMReactor.cpp b/src/Reactor/LLVMReactor.cpp
index 1e8a75a..bfcf2ff 100644
--- a/src/Reactor/LLVMReactor.cpp
+++ b/src/Reactor/LLVMReactor.cpp
@@ -37,9 +37,12 @@
 #include "Memory.hpp"
 #include "MutexLock.hpp"
 
-#include <xmmintrin.h>
 #include <fstream>
 
+#if defined(__i386__) || defined(__x86_64__)
+#include <xmmintrin.h>
+#endif
+
 #if defined(__x86_64__) && defined(_WIN32)
 extern "C" void X86CompilationCallback()
 {
@@ -5734,16 +5737,16 @@
 
 	RValue<Float> Rcp_pp(RValue<Float> x, bool exactAtPow2)
 	{
-		if(exactAtPow2)
-		{
-			// rcpss uses a piecewise-linear approximation which minimizes the relative error
-			// but is not exact at power-of-two values. Rectify by multiplying by the inverse.
-			return x86::rcpss(x) * Float(1.0f / _mm_cvtss_f32(_mm_rcp_ss(_mm_set_ps1(1.0f))));
-		}
-		else
-		{
-			return x86::rcpss(x);
-		}
+		#if defined(__i386__) || defined(__x86_64__)
+			if(exactAtPow2)
+			{
+				// rcpss uses a piecewise-linear approximation which minimizes the relative error
+				// but is not exact at power-of-two values. Rectify by multiplying by the inverse.
+				return x86::rcpss(x) * Float(1.0f / _mm_cvtss_f32(_mm_rcp_ss(_mm_set_ps1(1.0f))));
+			}
+		#endif
+
+		return x86::rcpss(x);
 	}
 
 	RValue<Float> RcpSqrt_pp(RValue<Float> x)
@@ -6114,16 +6117,16 @@
 
 	RValue<Float4> Rcp_pp(RValue<Float4> x, bool exactAtPow2)
 	{
-		if(exactAtPow2)
-		{
-			// rcpps uses a piecewise-linear approximation which minimizes the relative error
-			// but is not exact at power-of-two values. Rectify by multiplying by the inverse.
-			return x86::rcpps(x) * Float4(1.0f / _mm_cvtss_f32(_mm_rcp_ss(_mm_set_ps1(1.0f))));
-		}
-		else
-		{
-			return x86::rcpps(x);
-		}
+		#if defined(__i386__) || defined(__x86_64__)
+			if(exactAtPow2)
+			{
+				// rcpps uses a piecewise-linear approximation which minimizes the relative error
+				// but is not exact at power-of-two values. Rectify by multiplying by the inverse.
+				return x86::rcpps(x) * Float4(1.0f / _mm_cvtss_f32(_mm_rcp_ss(_mm_set_ps1(1.0f))));
+			}
+		#endif
+
+		return x86::rcpps(x);
 	}
 
 	RValue<Float4> RcpSqrt_pp(RValue<Float4> x)