Fixed OpShuffleVector

src/compiler.cpp

@@ -914,11 +914,11 @@ public:
                 auto v2 = OP_VALUE(3);
                 auto v1_len = llvm::dyn_cast<llvm::VectorType>(v1->getType())->getElementCount().getFixedValue();
 
-
                 for (int i = 4; i < insn->num_operands; i++) {
                     auto idx = OP_WORD(i);
-                    auto didx = idx - 4;
-                    auto el = idx > v1_len
+                    auto didx = i - 4;
+
+                    auto el = idx < v1_len
                             ? builder->CreateExtractElement(v1, idx)
                             : builder->CreateExtractElement(v2, idx-v1_len);
                     builder->CreateInsertElement(result, el, didx);