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qarraydata.h: use __has_builtin directly

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All our supported compilers support __has_builtin; also, no need to
check for old GCC versions; we require at least GCC 8.

Change-Id: I86d955188e71d6da5ebd1b2455e0f7fad8072bfb
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This commit is contained in:
Fabian Kosmale 2021-03-20 19:23:53 +01:00
parent a4ea58bf04
commit 1687f4c963
1 changed files with 1 additions and 1 deletions
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2
src/corelib/tools/qarraydata.h
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@ -139,7 +139,7 @@ struct QTypedArrayData
static_assert(sizeof(QTypedArrayData) == sizeof(QArrayData)); static_assert(sizeof(QTypedArrayData) == sizeof(QArrayData));
QArrayData *d; QArrayData *d;
void *result = QArrayData::allocate(&d, sizeof(T), alignof(AlignmentDummy), capacity, option); void *result = QArrayData::allocate(&d, sizeof(T), alignof(AlignmentDummy), capacity, option);
#if (defined(Q_CC_GNU) && Q_CC_GNU >= 407) || QT_HAS_BUILTIN(__builtin_assume_aligned) #if __has_builtin(__builtin_assume_aligned)
result = __builtin_assume_aligned(result, Q_ALIGNOF(AlignmentDummy)); result = __builtin_assume_aligned(result, Q_ALIGNOF(AlignmentDummy));
#endif #endif
return qMakePair(static_cast<QTypedArrayData *>(d), static_cast<T *>(result)); return qMakePair(static_cast<QTypedArrayData *>(d), static_cast<T *>(result));