JIT does not build on the main branch

[ZeroIntensity]

Bug report

Bug description:

Configuring with --enable-experimental-jit and then trying to build causes the following error (same as in #118343):

In file included from Python/optimizer_analysis.c:437:
Python/optimizer_cases.c.h: In function ‘optimize_uops’:
Python/optimizer_cases.c.h:548:23: error: assignment to ‘_PyInterpreterFrame *’ from incompatible pointer type ‘_Py_UopsSymbol *’ [-Wincompatible-pointer-types]
  548 |             new_frame = sym_new_not_null(ctx);
      |                       ^
Python/optimizer_cases.c.h:1176:23: error: assignment to ‘_PyInterpreterFrame *’ from incompatible pointer type ‘_Py_UopsSymbol *’ [-Wincompatible-pointer-types]
 1176 |             new_frame = sym_new_not_null(ctx);

Note that this doesn't occur on the 3.13 branch!

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• GH-122869: Fix JIT build #122936

[Eclips4]

I cannot reproduce it on current main.

[Eclips4]

Ah, nevermind. For some reason on macOS it generates warning, not an error:

Python/optimizer_cases.c.h:548:23: warning: incompatible pointer types assigning to '_PyInterpreterFrame *' (aka 'struct _PyInterpreterFrame *') from '_Py_UopsSymbol *' (aka 'struct _Py_UopsSymbol *') [-Wincompatible-pointer-types]
            new_frame = sym_new_not_null(ctx);
                      ^ ~~~~~~~~~~~~~~~~~~~~~

[ZeroIntensity]

What version of GCC are you on?

[Eclips4]

What version of GCC are you on?

It's not a GCC; it's a clang.

[ZeroIntensity]

Oh, ok. I'm on clang 18.1, maybe it's a warning on future (or previous) versions.

[Eclips4]

Oh, ok. I'm on clang 18.1, maybe it's a warning on future (or previous) versions.

Can you share flags that are used by compiler? For example:

gcc  -fno-strict-overflow -Wsign-compare -Wunreachable-code -DNDEBUG -g -O3 -Wall    -D_Py_TIER2=1 -D_Py_JIT -fstack-protector-strong -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden  -I./Include/internal -I./Include/internal/mimalloc  -I. -I./Include     -c ./Modules/selectmodule.c -o Modules/selectmodule.o

[ZeroIntensity]

gcc -c -fno-strict-overflow -Wsign-compare -DNDEBUG -g -O3 -Wall    -D_Py_TIER2=1 -D_Py_JIT -fstack-protector-strong -Wtrampolines -std=c11 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -fvisibility=hidden  -I./Include/internal -I./Include/internal/mimalloc  -I. -I./Include    -DPy_BUILD_CORE

[aisk]

Hi, I can reproduce the bug on Arch with ./configure --with-pydebug --enable-experimental-jit, and the GCC version is 14.2.1.