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gh-126910: Verify that JIT stencils preserve frame pointer #146524

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Merged
Fidget-Spinner merged 11 commits into from
Mar 27, 2026
Merged

gh-126910: Verify that JIT stencils preserve frame pointer #146524

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fae87b9
Verify that JIT stencils preserve frame pointer
Fidget-Spinner Mar 27, 2026
776e109
Update _optimizers.py
Fidget-Spinner Mar 27, 2026
8ad1774
Fix lint
Fidget-Spinner Mar 27, 2026
8c9fb56
more linting
Fidget-Spinner Mar 27, 2026
a66c8cd
Merge remote-tracking branch 'upstream/main' into fp_verifier
Fidget-Spinner Mar 27, 2026
c3eaa2a
Merge remote-tracking branch 'upstream/main' into fp_verifier
Fidget-Spinner Mar 27, 2026
bde6c5b
Try a fix
Fidget-Spinner Mar 27, 2026
3e1199e
PEP 7
Fidget-Spinner Mar 27, 2026
743cc6a
Revert "PEP 7"
Fidget-Spinner Mar 27, 2026
d7a2d30
Revert "Try a fix"
Fidget-Spinner Mar 27, 2026
108ea06
Apply Brandt's fix
Fidget-Spinner Mar 27, 2026
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@Fidget-Spinner
Fidget-Spinner committed Mar 27, 2026
commit bde6c5bbf46134c75638ded1ab57e544a0178a68
6 changes: 0 additions & 6 deletions Include/internal/pycore_pystate.h
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Expand Up @@ -306,12 +306,6 @@ _Py_AssertHoldsTstateFunc(const char *func)
#define _Py_AssertHoldsTstate()
#endif

#if !_Py__has_builtin(__builtin_frame_address) && !defined(__GNUC__) && !defined(_MSC_VER)
static uintptr_t return_pointer_as_int(char* p) {
return (uintptr_t)p;
}
#endif

PyAPI_DATA(uintptr_t) _Py_get_machine_stack_pointer(void);

static inline intptr_t
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12 changes: 5 additions & 7 deletions Python/pystate.c
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Expand Up @@ -3287,15 +3287,13 @@ _Py_GetMainConfig(void)
return _PyInterpreterState_GetConfig(interp);
}

uintptr_t
static uintptr_t return_pointer_as_int(char* p) {
return (uintptr_t)p;
}

Py_NO_INLINE uintptr_t
_Py_get_machine_stack_pointer(void) {
#if _Py__has_builtin(__builtin_frame_address) || defined(__GNUC__)
return (uintptr_t)__builtin_frame_address(0);
#elif defined(_MSC_VER)
return (uintptr_t)_AddressOfReturnAddress();
#else
char here;
/* Avoid compiler warning about returning stack address */
return return_pointer_as_int(&here);
#endif
}
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