[llvm-commits] [PATCH] Teach SimplifyLibCalls about stpcpy
Duncan Sands
baldrick at free.fr
Mon May 14 02:09:11 PDT 2012
Hi David,
> I briefly noticed that strcpy(x, x) for arbitrary x is always turned
> into a no-op. I figured that stpcpy can easily handle this case if we
> are willing to calculate strlen(x); this seems like it should always
> be a net win versus going to the library implementation of stpcpy.
don't forget to add a testcase for this feature.
Ciao, Duncan.
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