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GH-90081: Run python tracers at full speed (GH-95328) (#95363)

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(cherry picked from commit b8b2990fb3)

Co-authored-by: Mark Shannon <mark@hotpy.org>

Co-authored-by: Mark Shannon <mark@hotpy.org>
This commit is contained in:
Miss Islington (bot) 2022-07-29 01:43:52 -07:00 • committed by GitHub
parent f06f3656c5
commit 00566a8124
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 12 additions and 6 deletions
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11
Python/ceval.c
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@ -5590,7 +5590,7 @@ handle_eval_breaker:
assert(oparg);
oparg <<= 8;
oparg |= _Py_OPARG(*next_instr);
// We might be tracing. To avoid breaking tracing guarantees in
// We might be tracing. To avoid breaking tracing guarantees in
// quickened instructions, always deoptimize the next opcode:
opcode = _PyOpcode_Deopt[_Py_OPCODE(*next_instr)];
PRE_DISPATCH_GOTO();
@ -5620,9 +5620,9 @@ handle_eval_breaker:
case DO_TRACING:
#endif
{
if (tstate->tracing == 0 &&
INSTR_OFFSET() >= frame->f_code->_co_firsttraceable
) {
assert(cframe.use_tracing);
assert(tstate->tracing == 0);
if (INSTR_OFFSET() >= frame->f_code->_co_firsttraceable) {
int instr_prev = _PyInterpreterFrame_LASTI(frame);
frame->prev_instr = next_instr;
TRACING_NEXTOPARG();
@ -6832,12 +6832,15 @@ void
PyThreadState_EnterTracing(PyThreadState *tstate)
{
tstate->tracing++;
tstate->cframe->use_tracing = 0;
}
void
PyThreadState_LeaveTracing(PyThreadState *tstate)
{
assert(tstate->tracing > 0 && tstate->cframe->use_tracing == 0);
tstate->tracing--;
_PyThreadState_UpdateTracingState(tstate);
}
static int