Remove unused buffer

Author: Fidget-Spinner

Include/internal/pycore_interp_structs.h

@@ -959,7 +959,6 @@ struct _is {
     // End Jit tracing state
     bool jit;
     bool compiling;
-    struct _PyUOpInstruction *jit_uop_buffer;
     struct _PyExecutorObject *executor_list_head;
     struct _PyExecutorObject *executor_deletion_list_head;
     struct _PyExecutorObject *cold_executor;

Python/optimizer.c

@@ -1195,12 +1195,6 @@ uop_optimize(
 {
     _PyBloomFilter *dependencies = &tstate->interp->jit_tracer_dependencies;
     PyInterpreterState *interp = _PyInterpreterState_GET();
-    if (interp->jit_uop_buffer == NULL) {
-        interp->jit_uop_buffer = (_PyUOpInstruction *)_PyObject_VirtualAlloc(UOP_BUFFER_SIZE);
-        if (interp->jit_uop_buffer == NULL) {
-            return 0;
-        }
-    }
     _PyUOpInstruction *buffer = interp->jit_tracer_code_buffer;
     OPT_STAT_INC(attempts);
     char *env_var = Py_GETENV("PYTHON_UOPS_OPTIMIZE");

Python/pystate.c

@@ -553,8 +553,6 @@ init_interpreter(PyInterpreterState *interp,
 #endif
 
 #ifdef _Py_TIER2
-     // Ensure the buffer is to be set as NULL.
-    interp->jit_uop_buffer = NULL;
     interp->jit_tracer_code_buffer = NULL;
     interp->jit_tracer_initial_instr = NULL;
     interp->jit_tracer_initial_stack_depth = -1;
@@ -810,10 +808,6 @@ interpreter_clear(PyInterpreterState *interp, PyThreadState *tstate)
 
 #ifdef _Py_TIER2
     _Py_ClearExecutorDeletionList(interp);
-    if (interp->jit_uop_buffer != NULL) {
-        _PyObject_VirtualFree(interp->jit_uop_buffer, UOP_BUFFER_SIZE);
-        interp->jit_uop_buffer = NULL;
-    }
     if (interp->jit_tracer_code_buffer != NULL) {
         _PyObject_VirtualFree(interp->jit_tracer_code_buffer, UOP_BUFFER_SIZE);
         interp->jit_tracer_code_buffer = NULL;