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Re: Analysis of Brad's GCSE problem with computed gotos.
- To: Brad Lucier <lucier at math dot purdue dot edu>
- Subject: Re: Analysis of Brad's GCSE problem with computed gotos.
- From: Richard Henderson <rth at redhat dot com>
- Date: Sat, 2 Dec 2000 11:53:35 -0800
- Cc: Michael Matz <matzmich at cs dot tu-berlin dot de>, gcc at gcc dot gnu dot org
- References: <Pine.GSO.4.21.0012010310120.1643-100000@platon> <200012020729.eB27Tlh05747@polya.math.purdue.edu>
On Sat, Dec 02, 2000 at 02:29:46AM -0500, Brad Lucier wrote:
> It seems that one should really use insert_insn_on_edge from flow.c
> to add the pattern to the abnormal edge in pre_edge_insert.
No, insert_insn_on_edge aborts for abnormal critical edges.
We can't split the edge and so have no where that is absolutely
correct to put the instruction.
r~