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This patch adds the strcpy and strncpy assembly routines.
Benchmarks showed the following gains:
~7% for strcpy
~30% for strncpy
Note: uClibc string tests pass without any failures.
These functions have been only tested on SH4, for this reason
I've voluntarily added them within the sh4 sub-folder.
If somebody would like to test them on other SH CPUs, these can be moved
on sh common folder.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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