Next up is tests

Co-authored-by: ValterMiari <ValterMiari@users.noreply.github.com>

src/GC/tests/stack.cpp

@@ -0,0 +1,57 @@
+#include <algorithm>
+#include <cstring>
+#include <iostream>
+#include <vector>
+
+std::vector<uintptr_t *> iv;
+
+void collect() {
+    std::cout << "in collect" << std::endl;
+
+    uintptr_t *stack_start = reinterpret_cast<uintptr_t *>(__builtin_frame_address(0));
+    // uintptr_t *stack_end = reinterpret_cast<uintptr_t *>(__builtin_frame_address(100));
+
+    std::cout << "SP1:\t" << stack_start << "\nSP2:\t" << (stack_start - 1*sizeof(int)) << std::endl;
+    std::cout << "SP-:\t" << --stack_start << std::endl;
+
+    const uintptr_t *stack_end = (stack_start + 30*sizeof(int));
+    int vars_found = 0;
+
+    while (stack_start < stack_end) {
+
+        if (std::find(iv.begin(), iv.end(), stack_start) != iv.end()) {
+            vars_found++;
+            std::cout << "Found " << *(reinterpret_cast<unsigned long *>(stack_start)) << " at " << stack_start << std::endl;
+        }
+
+        // std::cout << "SP address:\t\t" << stack_start << "\nSP value:\t\t" << *(reinterpret_cast<unsigned long *>(stack_start)) << std::endl;
+        
+        stack_start++;
+    }
+
+    if (vars_found == 0) {
+        std::cout << "Found nothing" << std::endl;
+    }
+}
+
+int add(unsigned long a, unsigned long b) {
+    iv.push_back(reinterpret_cast<uintptr_t *>(&a));
+    iv.push_back(reinterpret_cast<uintptr_t *>(&b));
+    std::cout << "'a':\t" << &a << "\n'b':\t" << &b << std::endl;
+    collect();
+    return a + b;
+}
+
+int main() {
+
+    unsigned long global_1 = 16;
+    unsigned long global_2 = 32;
+
+    iv.push_back(&global_1);
+    iv.push_back(&global_2);
+
+    std::cout << "'g1':\t" << &global_1 << "\n'g2':\t" << &global_2 << std::endl;
+
+    add(3,2);
+    return 0;
+}