LLVM: Add explicit resource-freeing at emulation stop

Utilities/JIT.h

@@ -498,6 +498,8 @@ namespace llvm
 	class StringRef;
 }
 
+enum class thread_state : u32;
+
 // Temporary compiler interface
 class jit_compiler final
 {
@@ -515,6 +517,7 @@ class jit_compiler final
 
 public:
 	jit_compiler(const std::unordered_map<std::string, u64>& _link, const std::string& _cpu, u32 flags = 0, std::function<u64(const std::string&)> symbols_cement = {}) noexcept;
+	jit_compiler& operator=(thread_state) noexcept;
 	~jit_compiler() noexcept;
 
 	// Get LLVM context

Utilities/JITLLVM.cpp

@@ -1,5 +1,6 @@
 #include "util/types.hpp"
 #include "util/sysinfo.hpp"
+#include "Utilities/Thread.h"
 #include "JIT.h"
 #include "StrFmt.h"
 #include "File.h"
@@ -718,6 +719,18 @@ jit_compiler::jit_compiler(const std::unordered_map<std::string, u64>& _link, co
 	}
 }
 
+jit_compiler& jit_compiler::operator=(thread_state s) noexcept
+{
+	if (s == thread_state::destroying_context)
+	{
+		// Release resources explicitly
+		m_engine.reset();
+		m_context.reset();
+	}
+
+	return *this;
+}
+
 jit_compiler::~jit_compiler() noexcept
 {
 }