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Feat: add per-function @compiled(fastmath=True) opt-in (#332) - #360
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This was referenced Oct 31, 2026
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Closes #332
Summary
@compiled(fastmath=True)opt-in (off by default, owner decision Decision needed: opt-in fastmath for TypedPython #153) intypedpython/frontend.py(_compiled_decorator_options,_targets),typedpython/ir.py(Function.fastmath), andtypedpython/cgen.py(TP_FASTMATH_BEGIN/TP_FASTMATH_ENDaround the marked function's implementation only, and prevent inlining afastmathcallee into a non-fastmath caller).docs/SPEC.md(N-8) that@compiled(fastmath=True)is explicitly NOT CPython-identical and that default floating-point flags (-ffp-contract=off -fno-fast-math,/fp:precise) stay exact.test_frontend.pyandtest_pipeline.py.Verification
pytest src/test/python/test_frontend.py src/test/python/test_pipeline.py src/test/python/test_builtin_compiled.py src/test/python/test_cbuild_msvc.py -q: 130 passed, 3 skipped