diff options
| author | Thiago Macieira <thiago.macieira@nokia.com> | 2010-12-22 18:52:48 (GMT) |
|---|---|---|
| committer | Thiago Macieira <thiago.macieira@nokia.com> | 2011-06-22 14:26:56 (GMT) |
| commit | 45d2d36c9dbcbce403c78838ea52acd1ab111b68 (patch) | |
| tree | 76a0888856b6750e7869456c9a4f0984b9bc048f /tests | |
| parent | af3bb0f146ec357ae6daf752a5f8bbdb074cde20 (diff) | |
| download | Qt-45d2d36c9dbcbce403c78838ea52acd1ab111b68.zip Qt-45d2d36c9dbcbce403c78838ea52acd1ab111b68.tar.gz Qt-45d2d36c9dbcbce403c78838ea52acd1ab111b68.tar.bz2 | |
Add an SSE4.2 even simpler version of toLatin1
Use the new PCMPESTRM instruction (Parallel CoMPare Explicit-length
STRings with result in a Mask) which is added in SSE4.2 for
facilitating string operations. The "compare ranges" mode allows us to
search for characters outside the Latin 1 range and then use the
SSE4.1 PBLENDVB instruction to replace those with question marks.
Unlike previous SSE compare instructions, the PCMPxSTRx family allows
us to operate on unsigned 16-bit values. This saves us another
parallel add.
Reviewed-By: Samuel Rødal
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/auto/qstring/tst_qstring.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tests/auto/qstring/tst_qstring.cpp b/tests/auto/qstring/tst_qstring.cpp index c19b168..b26121c 100644 --- a/tests/auto/qstring/tst_qstring.cpp +++ b/tests/auto/qstring/tst_qstring.cpp @@ -3475,6 +3475,10 @@ void tst_QString::toLatin1Roundtrip_data() static const ushort unicode6[] = { 0x180, 0x1ff, 0x8001, 0x8080, 0xfffc }; QTest::newRow("non-latin1b") << QByteArray("?????") << QString::fromUtf16(unicode6, 5) << questionmarks; + + static const ushort unicode7[] = { 'H', 'e', 'l', 'l', 'o', 0x100, 0x17f, 0x180, 0x8080, 0xfffc }; + static const ushort unicode7q[] = { 'H', 'e', 'l', 'l', 'o', '?', '?', '?', '?', '?' }; + QTest::newRow("mixed") << QByteArray("Hello?????") << QString::fromUtf16(unicode7, 10) << QString::fromUtf16(unicode7q, 10); } void tst_QString::toLatin1Roundtrip() |