check before not after

Author: Fidget-Spinner

Python/optimizer_analysis.c

@@ -187,9 +187,10 @@ incorrect_keys(PyObject *obj, uint32_t version)
 #define sym_new_truthiness _Py_uop_sym_new_truthiness
 
 #define JUMP_TO_LABEL(label) goto label;
-#define CHECK_STACK_BOUNDS() \
+#define CHECK_STACK_BOUNDS(offset) \
 do { \
-    if (!CURRENT_FRAME_IS_INIT_SHIM() && (STACK_LEVEL() < 0 || STACK_LEVEL() > STACK_SIZE())) { \
+    int stack_level = (int)(stack_pointer + (offset) - ctx->frame->stack); \
+    if (!CURRENT_FRAME_IS_INIT_SHIM() && (stack_level < 0 || stack_level > STACK_SIZE())) { \
         ctx->contradiction = true; \
         ctx->done = true; \
         break; \