On Mon, Mar 23, 2009 at 01:06, QiangHuang <qianghuang87@xxxxxxxxx> wrote: > If the answer is negative, how can I access the SSA with the > inter-procedural optimizations in GCC? And is there any > inter-procedural SSA optimizations in current GCC implemention? Yes. GCC now puts the whole callgraph in SSA form. You need to work with mainline, though perhaps 4.3 does the same. I don't recall exactly. Diego.