QChar::isSpace: optimize by lowering the upper limit checkHEADdev

Of all the Category categories, separators are the only to currently
have assigned codepoints exclusively in the BMP. This allows us to lower
the maximum check from the LastValidCodepoint to category-specific
one. This will also cause the compiler to dead-code eliminate the check
inside of qGetProperty and emit only the BMP check of the property
tables:

    if (ucs4 < 0x11000)
        return uc_properties + uc_property_trie[uc_property_trie[ucs4 >> 5] + (ucs4 & 0x1f)];

Pick-to: 6.10
Change-Id: I31eda5d79cc2c3560d90fffd74a546d1e7cda7bb
Reviewed-by: Edward Welbourne <[email protected]>

0 files changed, 0 insertions, 0 deletions