Don't increment branch cache (bitmask) in INSTRUMENTED_LINE

gvanrossum · gvanrossum · commit 8f79a6061b78 · 2024-03-26T18:58:15.000-07:00
diff --git a/Python/ceval.c b/Python/ceval.c
@@ -818,7 +818,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, _PyInterpreterFrame *frame, int
         if (next_instr != here) {
             DISPATCH();
         }
-        if (_PyOpcode_Caches[original_opcode]) {
+        if (_PyOpcode_Caches[original_opcode] && !OPCODE_HAS_JUMP(original_opcode)) {
             _PyBinaryOpCache *cache = (_PyBinaryOpCache *)(next_instr+1);
             /* Prevent the underlying instruction from specializing
              * and overwriting the instrumentation. */

Original file line number	Diff line number	Diff line change
`@@ -818,7 +818,7 @@ _PyEval_EvalFrameDefault(PyThreadState tstate, _PyInterpreterFrame frame, int`
`818`	`818`	`if (next_instr != here) {`
`819`	`819`	`DISPATCH();`
`820`	`820`	`}`
`821`		`- if (_PyOpcode_Caches[original_opcode]) {`
	`821`	`+ if (_PyOpcode_Caches[original_opcode] && !OPCODE_HAS_JUMP(original_opcode)) {`
`822`	`822`	`_PyBinaryOpCache cache = (_PyBinaryOpCache )(next_instr+1);`
`823`	`823`	`/* Prevent the underlying instruction from specializing`
`824`	`824`	`* and overwriting the instrumentation. */`