yiguolei commented on PR #12936:
URL: https://github.com/apache/doris/pull/12936#issuecomment-1256844469
In lastes clang-14, our memcpy_overflow will be replaced by memcpy...
void my_memcpy(char * __restrict dst, const char * __restrict src, ssize_t n)
{
while (n > 0)
{
_mm_storeu_si128(reinterpret_cast<__m128i *>(dst),
_mm_loadu_si128(reinterpret_cast<const __m128i *>(src)));
dst += 16;
src += 16;
n -= 16;
}
}
You can find detail in this discussion:
https://github.com/llvm/llvm-project/issues/56467
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