diff options
Diffstat (limited to 'Python/optimizer_analysis.c')
| -rw-r--r-- | Python/optimizer_analysis.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/Python/optimizer_analysis.c b/Python/optimizer_analysis.c index 6c460c5..95924a5 100644 --- a/Python/optimizer_analysis.c +++ b/Python/optimizer_analysis.c @@ -228,7 +228,12 @@ remove_globals(_PyInterpreterFrame *frame, _PyUOpInstruction *buffer, builtins_watched <<= 1; globals_watched <<= 1; function_checked <<= 1; - PyFunctionObject *func = (PyFunctionObject *)buffer[pc].operand; + uint64_t operand = buffer[pc].operand; + if (operand == 0 || (operand & 1)) { + // It's either a code object or NULL, so bail + return 1; + } + PyFunctionObject *func = (PyFunctionObject *)operand; if (func == NULL) { return 1; } @@ -251,7 +256,15 @@ remove_globals(_PyInterpreterFrame *frame, _PyUOpInstruction *buffer, builtins_watched >>= 1; globals_watched >>= 1; function_checked >>= 1; - PyFunctionObject *func = (PyFunctionObject *)buffer[pc].operand; + uint64_t operand = buffer[pc].operand; + if (operand == 0 || (operand & 1)) { + // It's either a code object or NULL, so bail + return 1; + } + PyFunctionObject *func = (PyFunctionObject *)operand; + if (func == NULL) { + return 1; + } assert(PyFunction_Check(func)); function_version = func->func_version; globals = func->func_globals; @@ -522,7 +535,7 @@ remove_unneeded_uops(_PyUOpInstruction *buffer, int buffer_size) static void peephole_opt(_PyInterpreterFrame *frame, _PyUOpInstruction *buffer, int buffer_size) { - PyCodeObject *co = (PyCodeObject *)frame->f_executable; + PyCodeObject *co = _PyFrame_GetCode(frame); for (int pc = 0; pc < buffer_size; pc++) { int opcode = buffer[pc].opcode; switch(opcode) { @@ -545,11 +558,16 @@ peephole_opt(_PyInterpreterFrame *frame, _PyUOpInstruction *buffer, int buffer_s case _PUSH_FRAME: case _POP_FRAME: { - PyFunctionObject *func = (PyFunctionObject *)buffer[pc].operand; - if (func == NULL) { + uint64_t operand = buffer[pc].operand; + if (operand & 1) { + co = (PyCodeObject *)(operand & ~1); + assert(PyCode_Check(co)); + } + else if (operand == 0) { co = NULL; } else { + PyFunctionObject *func = (PyFunctionObject *)operand; assert(PyFunction_Check(func)); co = (PyCodeObject *)func->func_code; } @@ -587,7 +605,7 @@ _Py_uop_analyze_and_optimize( peephole_opt(frame, buffer, buffer_size); err = optimize_uops( - (PyCodeObject *)frame->f_executable, buffer, + _PyFrame_GetCode(frame), buffer, buffer_size, curr_stacklen, dependencies); if (err == 0) { |