Use LLVM to JIT the code for one of the drawer functions

src/r_compiler/ssa/ssa_value.cpp

@@ -0,0 +1,56 @@
+
+#include "ssa_value.h"
+#include "ssa_int.h"
+#include "ssa_scope.h"
+#include "r_compiler/llvm_include.h"
+
+SSAValue SSAValue::load()
+{
+	return SSAValue::from_llvm(SSAScope::builder().CreateLoad(v, false));
+}
+
+void SSAValue::store(llvm::Value *value)
+{
+	SSAScope::builder().CreateStore(value, v, false);
+}
+
+SSAIndexLookup SSAValue::operator[](int index)
+{
+	SSAIndexLookup result;
+	result.v = v;
+	result.indexes.push_back(SSAInt(index).v);
+	return result;
+}
+
+SSAIndexLookup SSAValue::operator[](SSAInt index)
+{
+	SSAIndexLookup result;
+	result.v = v;
+	result.indexes.push_back(index.v);
+	return result;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+
+SSAIndexLookup::operator SSAValue()
+{
+	return SSAValue::from_llvm(SSAScope::builder().CreateGEP(v, indexes));
+}
+
+SSAIndexLookup SSAIndexLookup::operator[](int index)
+{
+	SSAIndexLookup result;
+	result.v = v;
+	result.indexes = indexes;
+	result.indexes.push_back(SSAInt(index).v);
+	return result;
+}
+
+SSAIndexLookup SSAIndexLookup::operator[](SSAInt index)
+{
+	SSAIndexLookup result;
+	result.v = v;
+	result.indexes = indexes;
+	result.indexes.push_back(index.v);
+	return result;
+}