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Re: flow.c/dwarf2out.c and multiple entry points
On Fri, Feb 23, 2001 at 11:09:21AM +0000, Jason Merrill wrote:
> Thinking about this, I wonder if it makes more sense to build up an internal
> representation of the full unwind table while compiling and only break it
> down into dwarf operations when we need to write it out. This would seem
> to offer more control over optimization of the representation.
I think this would be ideal.
The optimization I'd most like to see is to delay mentioning a
save until the original register actually gets clobbered. This
allows us to cluster saves, which would reduce the number of
advances in the info.