Hi, On Wed, Jun 15, 2011 at 07:20:47PM +0200, Feng LI wrote: > Hi, > > Is there an interface provided in GCC to clone the current function? > I searched in the source code but failed, just in case I'm going wrong. >
There are at least two. If you want to clone from within an ordinary intra-procedural pass (as presented to our pass manager), you are probably after cgraph_function_versioning. If, on the other hand you want to make clones in an inter-procedural stage of an IPA pass, you probably want cgraph_create_virtual_clone. HTH Martin
