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Re: Tree-SSA self checking infrastructure
On Wed, Nov 19, 2003 at 12:13:06PM -0700, law@redhat.com wrote:
> >This brings me into questions about my tail call updating code.
> >Perhaps I need to re-do SSA form on call cobbered variables after
> >removing the call?
> Are you changing the CFG? Are you changing the dominator tree? Those
> are the key questions.
Yes, he is, but only by adding a new block on the ENTRY->BB0 edge,
and then edges into that block from the tail recursion sites.
I may be mistaken, but I thought the new phi nodes he was adding
there would be correct. Perhaps this is a good test for a verify_ssa
pass?
r~