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pycore_call.h:166:16: warning: ‘small_stack’ may be used uninitialized #132314

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3.13bugs and security fixes3.14bugs and security fixesinterpreter-core(Objects, Python, Grammar, and Parser dirs)type-bugAn unexpected behavior, bug, or error
@utkonos

Description

@utkonos

Bug report

Bug description:

default:gcc-c-fno-strict-overflow-Wsign-compare-DNDEBUG-g-O3-Wall-fno-semantic-interposition-flto-fuse-linker-plugin-ffat-lto-objects-flto-partition=none-g-std=c11-Wextra-Wno-unused-parameter-Wno-missing-field-initializers-Wstrict-prototypes-Werror=implicit-function-declaration-fvisibility=hidden-fprofile-use-fprofile-correction-I./Include/internal-I./Include/internal/mimalloc-I.-I./Include-DPy_BUILD_CORE-oPython/perf_jit_trampoline.oPython/perf_jit_trampoline.cdefault:InfileincludedfromPython/bltinmodule.c:5:default:Infunction_PyObject_VectorcallTstate’,default:inlinedfrom_PyObject_VectorcallTstateat ./Include/internal/pycore_call.h:153:1,default:inlinedfrommap_nextatPython/bltinmodule.c:1440:14:default: ./Include/internal/pycore_call.h:166:16:warning: ‘small_stackmaybeuseduninitialized [-Wmaybe-uninitialized]default:166|return_PyObject_MakeTpCall(tstate,callable,args,nargs,kwnames);default:|^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~default: ./Include/internal/pycore_call.h:Infunctionmap_next’:default: ./Include/internal/pycore_call.h:107:23:note:byargument3oftypestructPyObject*const*to_PyObject_MakeTpCalldeclaredheredefault:107|PyAPI_FUNC(PyObject*)_PyObject_MakeTpCall(default:|^~~~~~~~~~~~~~~~~~~~default:Python/bltinmodule.c:1412:15:note: ‘small_stackdeclaredheredefault:1412|PyObject*small_stack[_PY_FASTCALL_SMALL_STACK];default:|^~~~~~~~~~~

CPython versions tested on:

3.13

Operating systems tested on:

Linux

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    3.13bugs and security fixes3.14bugs and security fixesinterpreter-core(Objects, Python, Grammar, and Parser dirs)type-bugAn unexpected behavior, bug, or error

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