[BUG] Compiler crash using ufunc with multiple, fused return types #6068
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Thanks. I'll try to have a look in the fairly near future. The ufunc stuff is all fairly new so I'm sure there's plenty of bugs there. |
da-woods
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Mar 16, 2024
Fixes cython#6068. Ideally should go in 3.0.x.
da-woods
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Mar 16, 2024
Fixes cython#6068. Ideally should go in 3.0.x.
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Describe the bug
Thanks again for fixing #6064.
The Cython compiler crashes with the following code using cython.ufunc with multiple, fused return types (single, fused return types work, as do multiple, non-fused return types):
[1/1] Cythonizing ufunc_fused.pyx D:\ufunc\Cython\Compiler\Main.py:373: FutureWarning: Cython directive 'language_level' not set, using '3' (Py3). This has changed from earlier releases! File: D:\ufunc\ufunc_fused.pyx tree = Parsing.p_module(s, pxd, full_module_name) Error compiling Cython file: ------------------------------------------------------------ ... cimport cython from cython cimport floating @cython.ufunc cdef (floating, floating) add_one(floating x): ^ ------------------------------------------------------------ ufunc_fused.pyx:5:5: Compiler crash in AnalyseDeclarationsTransform File 'ModuleNode.py', line 202, in analyse_declarations: ModuleNode(ufunc_fused.pyx:1:0, full_module_name = 'ufunc_fused') File 'Nodes.py', line 386, in analyse_declarations: StatListNode(ufunc_fused.pyx:1:0) File 'Nodes.py', line 386, in analyse_declarations: StatListNode(ufunc_fused.pyx:5:5) File 'Nodes.py', line 328, in analyse_declarations: CompilerDirectivesNode(ufunc_fused.pyx:5:5) File 'Nodes.py', line 386, in analyse_declarations: StatListNode(ufunc_fused.pyx:5:5) File 'Nodes.py', line 2620, in analyse_declarations: CFuncDefNode(ufunc_fused.pyx:5:5, modifiers = [...]/0, outer_attrs = [...]/2, visibility = 'private') File 'Nodes.py', line 1356, in analyse: CTupleBaseTypeNode(ufunc_fused.pyx:5:5) Compiler crash traceback from this point on: File "D:\ufunc\Cython\Compiler\Nodes.py", line 1356, in analyse entry = env.declare_tuple_type(self.pos, component_types) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\ufunc\Cython\Compiler\Symtab.py", line 1343, in declare_tuple_type ttype = self._cached_tuple_types[components] = PyrexTypes.c_tuple_type(components) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\ufunc\Cython\Compiler\PyrexTypes.py", line 4652, in c_tuple_type cname = Naming.ctuple_type_prefix + type_list_identifier(components) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\ufunc\Cython\Compiler\PyrexTypes.py", line 5440, in type_list_identifier return cap_length('__and_'.join(type_identifier(type) for type in types)) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\ufunc\Cython\Compiler\PyrexTypes.py", line 5440, in <genexpr> return cap_length('__and_'.join(type_identifier(type) for type in types)) ^^^^^^^^^^^^^^^^^^^^^ File "D:\ufunc\Cython\Compiler\PyrexTypes.py", line 5468, in type_identifier decl = type.empty_declaration_code(pyrex=pyrex) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\ufunc\Cython\Compiler\PyrexTypes.py", line 50, in empty_declaration_code self._empty_declaration = self.declaration_code('') ^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\ufunc\Cython\Compiler\PyrexTypes.py", line 1924, in declaration_code raise Exception("This may never happen, please report a bug") Exception: This may never happen, please report a bug Traceback (most recent call last): File "D:\ufunc\setup.py", line 4, in <module> setup( File "X:\Python311\Lib\site-packages\setuptools\__init__.py", line 103, in setup return distutils.core.setup(**attrs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "X:\Python311\Lib\site-packages\setuptools\_distutils\core.py", line 185, in setup return run_commands(dist) ^^^^^^^^^^^^^^^^^^ File "X:\Python311\Lib\site-packages\setuptools\_distutils\core.py", line 201, in run_commands dist.run_commands() File "X:\Python311\Lib\site-packages\setuptools\_distutils\dist.py", line 969, in run_commands self.run_command(cmd) File "X:\Python311\Lib\site-packages\setuptools\dist.py", line 963, in run_command super().run_command(command) File "X:\Python311\Lib\site-packages\setuptools\_distutils\dist.py", line 988, in run_command cmd_obj.run() File "X:\Python311\Lib\site-packages\setuptools\command\build_ext.py", line 89, in run _build_ext.run(self) File "X:\Python311\Lib\site-packages\setuptools\_distutils\command\build_ext.py", line 345, in run self.build_extensions() File "X:\Python311\Lib\site-packages\setuptools\_distutils\command\build_ext.py", line 467, in build_extensions self._build_extensions_serial() File "X:\Python311\Lib\site-packages\setuptools\_distutils\command\build_ext.py", line 493, in _build_extensions_serial self.build_extension(ext) File "X:\Python311\Lib\site-packages\setuptools\command\build_ext.py", line 250, in build_extension _build_ext.build_extension(self, ext) File "D:\ufunc\Cython\Distutils\build_ext.py", line 129, in build_extension new_ext = cythonize( ^^^^^^^^^^ File "D:\ufunc\Cython\Build\Dependencies.py", line 1168, in cythonize cythonize_one(*args) File "D:\ufunc\Cython\Build\Dependencies.py", line 1331, in cythonize_one raise CompileError(None, pyx_file) Cython.Compiler.Errors.CompileError: ufunc_fused.pyxCode to reproduce the behaviour:
Expected behaviour
No compiler crash
OS
Windows 11
Python version
3.11, 3.12
Cython version
3.0.9 and current main branch (f3cad15)
Additional context
No response
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