SPU LLVM: emulate PSHUFB

For targets without SSSE3 support

Utilities/JIT.cpp

@@ -500,6 +500,25 @@ jit_compiler::~jit_compiler()
 {
 }
 
+bool jit_compiler::has_ssse3() const
+{
+	if (m_cpu == "generic" ||
+		m_cpu == "k8" ||
+		m_cpu == "opteron" ||
+		m_cpu == "athlon64" ||
+		m_cpu == "athlon-fx" ||
+		m_cpu == "k8-sse3" ||
+		m_cpu == "opteron-sse3" ||
+		m_cpu == "athlon64-sse3" ||
+		m_cpu == "amdfam10" ||
+		m_cpu == "barcelona")
+	{
+		return false;
+	}
+
+	return true;
+}
+
 void jit_compiler::add(std::unique_ptr<llvm::Module> module, const std::string& path)
 {
 	ObjectCache cache{path};

Utilities/JIT.h

@@ -111,6 +111,9 @@ public:
 		return *m_engine;
 	}
 
+	// Test SSSE3 feature
+	bool has_ssse3() const;
+
 	// Add module (path to obj cache dir)
 	void add(std::unique_ptr<llvm::Module> module, const std::string& path);