From 6bd1541a8ad54d08a8a49837b300cae58904179e Mon Sep 17 00:00:00 2001
From: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Date: Fri, 24 Oct 2025 16:40:00 +0100
Subject: [PATCH] Fix FT

---
 Python/bytecodes.c        | 10 +++++-----
 Python/ceval_macros.h     |  6 +++++-
 Python/executor_cases.c.h |  8 ++++----
 3 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/Python/bytecodes.c b/Python/bytecodes.c
index 31a433721fe4..fc12dc787bce 100644
--- a/Python/bytecodes.c
+++ b/Python/bytecodes.c
@@ -5229,7 +5229,7 @@ dummy_func(
                 ERROR_IF(err < 0);
                 DISPATCH_GOTO_NON_TRACING();
             }
-            // Super instructions. Instruction deopted, There's a mismatch in what the stack expects
+            // Super instructions. Instruction deopted. There's a mismatch in what the stack expects
             // in the optimizer. So we have to reflect in the trace correctly.
             if ((tstate->interp->jit_state.prev_instr->op.code == CALL_LIST_APPEND &&
                 opcode == POP_TOP) ||
@@ -5470,10 +5470,6 @@ dummy_func(
             assert(exit != NULL);
             _Py_CODEUNIT *target = _PyFrame_GetBytecode(frame) + exit->target;
             _Py_BackoffCounter temperature = exit->temperature;
-            if (!backoff_counter_triggers(temperature)) {
-                exit->temperature = advance_backoff_counter(temperature);
-                GOTO_TIER_ONE(target);
-            }
             _PyExecutorObject *executor;
             if (target->op.code == ENTER_EXECUTOR) {
                 PyCodeObject *code = _PyFrame_GetCode(frame);
@@ -5481,6 +5477,10 @@ dummy_func(
                 Py_INCREF(executor);
             }
             else {
+                if (!backoff_counter_triggers(temperature)) {
+                    exit->temperature = advance_backoff_counter(temperature);
+                    GOTO_TIER_ONE(target);
+                }
                 _PyExecutorObject *previous_executor = _PyExecutor_FromExit(exit);
                 assert(tstate->current_executor == (PyObject *)previous_executor);
                 int chain_depth = previous_executor->vm_data.chain_depth + 1;
diff --git a/Python/ceval_macros.h b/Python/ceval_macros.h
index abef480b902a..f85a7f9e271a 100644
--- a/Python/ceval_macros.h
+++ b/Python/ceval_macros.h
@@ -355,7 +355,11 @@ GETITEM(PyObject *v, Py_ssize_t i) {
 #define RECORD_BRANCH_TAKEN(bitset, flag)
 #endif
 
-#define RECORD_DYNAMIC_JUMP_TAKEN() tstate->interp->jit_state.dynamic_jump_taken = true;
+#if _Py_TIER2
+#   define RECORD_DYNAMIC_JUMP_TAKEN() tstate->interp->jit_state.dynamic_jump_taken = true;
+#else
+#   define RECORD_DYNAMIC_JUMP_TAKEN()
+#endif
 
 #define UNBOUNDLOCAL_ERROR_MSG \
     "cannot access local variable '%s' where it is not associated with a value"
diff --git a/Python/executor_cases.c.h b/Python/executor_cases.c.h
index 6d155cf81796..2fa109b049d1 100644
--- a/Python/executor_cases.c.h
+++ b/Python/executor_cases.c.h
@@ -7487,10 +7487,6 @@
             assert(exit != NULL);
             _Py_CODEUNIT *target = _PyFrame_GetBytecode(frame) + exit->target;
             _Py_BackoffCounter temperature = exit->temperature;
-            if (!backoff_counter_triggers(temperature)) {
-                exit->temperature = advance_backoff_counter(temperature);
-                GOTO_TIER_ONE(target);
-            }
             _PyExecutorObject *executor;
             if (target->op.code == ENTER_EXECUTOR) {
                 PyCodeObject *code = _PyFrame_GetCode(frame);
@@ -7498,6 +7494,10 @@
                 Py_INCREF(executor);
             }
             else {
+                if (!backoff_counter_triggers(temperature)) {
+                    exit->temperature = advance_backoff_counter(temperature);
+                    GOTO_TIER_ONE(target);
+                }
                 _PyExecutorObject *previous_executor = _PyExecutor_FromExit(exit);
                 assert(tstate->current_executor == (PyObject *)previous_executor);
                 int chain_depth = previous_executor->vm_data.chain_depth + 1;
-- 
2.47.3