gh-142476: Fix Windows crashing with JIT (GH-143021)

Fidget-Spinner · web-flow · commit 9ded3dd4e9a4 · 2025-12-22T14:57:13.000Z
Fix Windows crashing with JIT
diff --git a/Python/optimizer.c b/Python/optimizer.c
@@ -188,7 +188,7 @@ _PyOptimizer_Optimize(
     executor->vm_data.chain_depth = chain_depth;
     assert(executor->vm_data.valid);
     _PyExitData *exit = _tstate->jit_tracer_state.initial_state.exit;
-    if (exit != NULL) {
+    if (exit != NULL && !progress_needed) {
         exit->executor = executor;
     }
     else {

Original file line number	Diff line number	Diff line change
`@@ -188,7 +188,7 @@ _PyOptimizer_Optimize(`
`188`	`188`	`executor->vm_data.chain_depth = chain_depth;`
`189`	`189`	`assert(executor->vm_data.valid);`
`190`	`190`	`_PyExitData *exit = _tstate->jit_tracer_state.initial_state.exit;`
`191`		`- if (exit != NULL) {`
	`191`	`+ if (exit != NULL && !progress_needed) {`
`192`	`192`	`exit->executor = executor;`
`193`	`193`	`}`
`194`	`194`	`else {`