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[3.7] bpo-27987: Revert "align PyGC_Head to alignof(long double)" (GH-13335) #13569

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Merged
merged 1 commit into from
May 25, 2019
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[3.7] bpo-27987: Revert "align PyGC_Head to alignof(long double)" (GH-13335) #13569

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6 changes: 1 addition & 5 deletions Include/objimpl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -255,11 +255,7 @@ typedef union _gc_head {
union _gc_head *gc_prev;
Py_ssize_t gc_refs;
} gc;
long double dummy; /* force worst-case alignment */
// malloc returns memory block aligned for any built-in types and
// long double is the largest standard C type.
// On amd64 linux, long double requires 16 byte alignment.
// See bpo-27987 for more discussion.
double dummy; /* force worst-case alignment */
} PyGC_Head;

extern PyGC_Head *_PyGC_generation0;
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2 changes: 0 additions & 2 deletions Misc/NEWS.d/next/Core and Builtins/2019-05-15-18-28-43.bpo-27987.FaxuLy.rst
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