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bpo-43166: Disable ceval.c optimizations for Windows debug builds again by neonene · Pull Request #32023 · python/cpython · GitHub

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bpo-43166: Disable ceval.c optimizations for Windows debug builds again #32023

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Merged
zooba merged 10 commits into from
Mar 23, 2022
Conversation 9 Commits 10 Checks 0 Files changed
Merged

bpo-43166: Disable ceval.c optimizations for Windows debug builds again #32023

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1c81950
#pragma("",off|on) in sources aren't friendly to pragma in headers
neonene Mar 21, 2022
9c1f3a5
StackReserveSize 4000000 for Debug
neonene Mar 21, 2022
691870f
StackReserveSize 4000000 for _freeze_module
neonene Mar 21, 2022
1ebe5f4
remove a comment in ceval.c
neonene Mar 21, 2022
413cb1d
_freeze_module with /Ob0 (no inline)
neonene Mar 21, 2022
00c6e05
_freeze_module with default inlining
neonene Mar 21, 2022
a47f8bb
Update pyport.h
neonene Mar 21, 2022
2a15be8
Update ceval.c
neonene Mar 21, 2022
6e85c1f
revert _freeze_module.vcxproj
neonene Mar 22, 2022
e58b150
Merge branch 'python:main' into bpo-43166
neonene Mar 22, 2022
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11 changes: 0 additions & 11 deletions Include/pyport.h
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Expand Up @@ -170,23 +170,12 @@ typedef Py_ssize_t Py_ssize_clean_t;
* Py_LOCAL_INLINE does the same thing, and also explicitly requests inlining,
* for platforms that support that.
*
* If PY_LOCAL_AGGRESSIVE is defined before python.h is included, more
* "aggressive" inlining/optimization is enabled for the entire module. This
* may lead to code bloat, and may slow things down for those reasons. It may
* also lead to errors, if the code relies on pointer aliasing. Use with
* care.
*
* NOTE: You can only use this for functions that are entirely local to a
* module; functions that are exported via method tables, callbacks, etc,
* should keep using static.
*/

#if defined(_MSC_VER)
# if defined(PY_LOCAL_AGGRESSIVE)
/* enable more aggressive optimization for MSVC */
/* active in both release and debug builds - see bpo-43271 */
# pragma optimize("gt", on)
#endif
/* ignore warnings if the compiler decides not to inline a function */
# pragma warning(disable: 4710)
/* fastest possible local call under MSVC */
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3 changes: 2 additions & 1 deletion PCbuild/python.vcxproj
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Expand Up @@ -94,7 +94,8 @@
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<StackReserveSize>2000000</StackReserveSize>
<StackReserveSize Condition="$(Configuration) != 'Debug'">2000000</StackReserveSize>
<StackReserveSize Condition="$(Configuration) == 'Debug'">4000000</StackReserveSize>
</Link>
</ItemDefinitionGroup>
<ItemGroup>
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4 changes: 0 additions & 4 deletions Python/ceval.c
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Expand Up @@ -5,10 +5,6 @@
XXX document it!
*/

/* enable more aggressive intra-module optimizations, where available */
/* affects both release and debug builds - see bpo-43271 */
#define PY_LOCAL_AGGRESSIVE

#include "Python.h"
#include "pycore_abstract.h" // _PyIndex_Check()
#include "pycore_call.h" // _PyObject_FastCallDictTstate()
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