bpo-29782: Consolidate _Py_Bit_Length() - #20739

Merged

vstinner merged 21 commits into

python:masterfrom

niklasf:bpo-29782-msb

Jun 15, 2020

Commits on Jun 8, 2020

bpo-29782: Consolidate _Py_Bit_Length()
niklasf
committed
281009c
Specify required gcc version for __builtin_clzl
niklasf
committed
65abb83
Fix _BitScanReverse usage
niklasf
committed
ce45ff2
Document reason for include
niklasf
committed
6464ca6
Ensure future compatibility
niklasf
committed
0bd4265
Do not try to support GCC < 3.4
niklasf
committed
fbaca66
Coding style
niklasf
committed
436f68b
Fix comment indent

niklasf
and
vstinner
authored
ac664bc
Do not factor out x != 0
niklasf
committed
3279d17
Fix and move _Py_bit_length_digit()
niklasf
committed
525da3d
Add unit test for _Py_bit_length()
niklasf
committed
e487622
Remove useless cast in test
niklasf
committed
a338761
Use original implementation as fallback
niklasf
committed
5a146f7
Re-enable intrinsics
niklasf
committed
8e3ce66
Explicitly cast sizeof

niklasf
and
vstinner
authored
86241f6
Better tests

niklasf
and
vstinner
authored
c7ccbe2
Explain Py_BUILD_ASSERT(sizeof(unsigned long) <= 4)
niklasf
committed
dfceaf2
Use volatile so test actually runs intrinsic
niklasf
committed
fbf01ae
Remove trailing spaces
niklasf
committed
991622b
_Py_bit_length_digit -> bit_length_digit
niklasf
committed
462d995
Fixup test expectations
niklasf
committed
98fc7a8