diff options
Diffstat (limited to 'src/corelib/tools/qalgorithms.h')
| -rw-r--r-- | src/corelib/tools/qalgorithms.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/corelib/tools/qalgorithms.h b/src/corelib/tools/qalgorithms.h index 14465240b4..4f704d6764 100644 --- a/src/corelib/tools/qalgorithms.h +++ b/src/corelib/tools/qalgorithms.h @@ -626,7 +626,7 @@ Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint8 v) Q_DECL_NOT Q_DECL_RELAXED_CONSTEXPR inline uint qCountTrailingZeroBits(quint16 v) Q_DECL_NOTHROW { #if defined(Q_CC_GNU) -# if QT_HAS_BUILTIN(__builtin_ctzs) || defined(__BMI__) +# if QT_HAS_BUILTIN(__builtin_ctzs) || (defined(__LZCNT__) && defined(__BMI__)) return v ? __builtin_ctzs(v) : 16U; # else return v ? __builtin_ctz(v) : 16U; @@ -689,7 +689,7 @@ Q_DECL_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint8 v) Q_DECL_NOTH Q_DECL_RELAXED_CONSTEXPR inline uint qCountLeadingZeroBits(quint16 v) Q_DECL_NOTHROW { #if defined(Q_CC_GNU) -# if QT_HAS_BUILTIN(__builtin_clzs) || defined(__BMI__) +# if QT_HAS_BUILTIN(__builtin_clzs) || (defined(__LZCNT__) && defined(__BMI__)) return v ? __builtin_clzs(v) : 16U; # else return v ? __builtin_clz(v)-16U : 16U; |