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| author | Oswald Buddenhagen <oswald.buddenhagen@qt.io> | 2018-08-21 02:32:49 +0200 |
|---|---|---|
| committer | Oswald Buddenhagen <oswald.buddenhagen@qt.io> | 2018-08-21 02:32:50 +0200 |
| commit | 5a03b75c50b2e34552c7ec3e1e15e7b2a0128bf7 (patch) | |
| tree | 88e05cd6150e0b3cda4e8716668082c655007fb8 /src/corelib/tools/qalgorithms.h | |
| parent | 0e7724079f1eae283714ae12769d1372b8f85659 (diff) | |
| parent | 6553921dd537e416da2f4d1441ab6d63059cda60 (diff) | |
Merge dev into 5.12
Change-Id: I63f632b595f66d2fc93e9aa713500e3799e3df2a
Diffstat (limited to 'src/corelib/tools/qalgorithms.h')
| -rw-r--r-- | src/corelib/tools/qalgorithms.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/corelib/tools/qalgorithms.h b/src/corelib/tools/qalgorithms.h index b658d8afcf..0146e22fa3 100644 --- a/src/corelib/tools/qalgorithms.h +++ b/src/corelib/tools/qalgorithms.h @@ -651,6 +651,7 @@ Q_ALWAYS_INLINE uint qt_builtin_clzs(quint16 v) Q_DECL_NOTHROW // So it's an acceptable compromise. #if defined(__AVX__) || defined(__SSE4_2__) || defined(__POPCNT__) #define QALGORITHMS_USE_BUILTIN_POPCOUNT +#define QALGORITHMS_USE_BUILTIN_POPCOUNTLL Q_ALWAYS_INLINE uint qt_builtin_popcount(quint32 v) Q_DECL_NOTHROW { return __popcnt(v); @@ -663,13 +664,15 @@ Q_ALWAYS_INLINE uint qt_builtin_popcount(quint16 v) Q_DECL_NOTHROW { return __popcnt16(v); } -#if Q_PROCESSOR_WORDSIZE == 8 -#define QALGORITHMS_USE_BUILTIN_POPCOUNTLL Q_ALWAYS_INLINE uint qt_builtin_popcountll(quint64 v) Q_DECL_NOTHROW { +#if Q_PROCESSOR_WORDSIZE == 8 return __popcnt64(v); -} +#else + return __popcnt(quint32(v)) + __popcnt(quint32(v >> 32)); #endif // MSVC 64bit +} + #endif // __AVX__ || __SSE4_2__ || __POPCNT__ #endif // MSVC |