3ef43ca837
For both the [4, 7] and [8,15] length cases, we can perform the same technique: perform two overlapped loads, zero-extend, then perform two overlapped stores. The 8-character case could be done in a single load/store pair, but is not worth the extra conditionals. And it should have the exact same performance numbers whether we use non-overlapping 4-character operations or completely-overlapping 8-character ones (I *think* the full overlap is actually better). The 4-character operation is new in this commit. That reduces the non-vectorized, unrolled to at most 3 characters. Change-Id: Ib42b3adc93bf4d43bd55fffd16c257ada774236a Reviewed-by: Lars Knoll <lars@knoll.priv.no> |
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| CMakeLists.txt | ||
| double_data.h | ||
| tst_qstring.cpp | ||
| tst_qstring_mac.mm | ||