diff options
author | Marc Mutz <marc.mutz@qt.io> | 2022-06-02 20:22:01 +0200 |
---|---|---|
committer | Marc Mutz <marc.mutz@qt.io> | 2022-06-22 01:38:12 +0000 |
commit | 32925d0a85b13d2a8032e580db544af5cdfecf8b (patch) | |
tree | 25771561297698fbcc40e175a505b451b7e75523 /tests | |
parent | 06f21a387069fe02d6e97600fc445a3c71b0fb82 (diff) |
tst_tostring: add benchmarks for QCOMPARE vs. QCOMPARE_EQ
There's currently no statistically-significant difference between the
two, due to a huge pessimistion in QTestLib where every QCOMPARE* and
QVERIFY writes 1KiB of data onto the stack before doing anything else,
so I'm not reporting numbers in this commit message.
Pick-to: 6.4
Task-number: QTBUG-98873
Task-number: QTBUG-98874
Change-Id: I233878596f0a8fe6b96360adb839fecd72c398a2
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Diffstat (limited to 'tests')
-rw-r--r-- | tests/benchmarks/testlib/tostring/tst_tostring.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tests/benchmarks/testlib/tostring/tst_tostring.cpp b/tests/benchmarks/testlib/tostring/tst_tostring.cpp index 913a0337c6..c72ec220b1 100644 --- a/tests/benchmarks/testlib/tostring/tst_tostring.cpp +++ b/tests/benchmarks/testlib/tostring/tst_tostring.cpp @@ -25,6 +25,36 @@ private slots: void quint64Tst() { numeric<quint64>(); } void qint64Tst_data() { numeric_data<qint64>(); } void qint64Tst() { numeric<qint64>(); } + +private: + template <typename T> void compare(); + template <typename T> void compare_eq(); + +private slots: + void floatCompare_data() { numeric_data<float>(); } + void floatCompare() { compare<float>(); } + void floatCompareEq_data() { numeric_data<float>(); } + void floatCompareEq() { compare_eq<float>(); } + void doubleCompare_data() { numeric_data<double>(); } + void doubleCompare() { compare<double>(); } + void doubleCompareEq_data() { numeric_data<double>(); } + void doubleCompareEq() { compare_eq<double>(); } + void intCompare_data() { numeric_data<int>(); } + void intCompare() { compare<int>(); } + void intCompareEq_data() { numeric_data<int>(); } + void intCompareEq() { compare_eq<int>(); } + void unsignedCompare_data() { numeric_data<unsigned>(); } + void unsignedCompare() { compare<unsigned>(); } + void unsignedCompareEq_data() { numeric_data<unsigned>(); } + void unsignedCompareEq() { compare_eq<unsigned>(); } + void quint64Compare_data() { numeric_data<quint64>(); } + void quint64Compare() { compare<quint64>(); } + void quint64CompareEq_data() { numeric_data<quint64>(); } + void quint64CompareEq() { compare_eq<quint64>(); } + void qint64Compare_data() { numeric_data<qint64>(); } + void qint64Compare() { compare<qint64>(); } + void qint64CompareEq_data() { numeric_data<qint64>(); } + void qint64CompareEq() { compare_eq<qint64>(); } }; template <typename T> @@ -75,5 +105,30 @@ void tst_toString::numeric() } } +template <typename T> +void tst_toString::compare() +{ + QFETCH(T, datum); + + QBENCHMARK { + QCOMPARE(datum, datum); + } +} + +template <typename T> +void tst_toString::compare_eq() +{ + QFETCH(T, datum); + + if constexpr (std::numeric_limits<T>::has_quiet_NaN) { + if (qIsNaN(datum)) + QSKIP("Unlike QCOMPARE, QCOMPARE_EQ doesn't handle NaN specially"); + } + + QBENCHMARK { + QCOMPARE_EQ(datum, datum); + } +} + QTEST_MAIN(tst_toString) #include "tst_tostring.moc" |