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Re: PR 23551: why should we coalesce inlined variables?

On 7/8/07, Alexandre Oliva <> wrote:
On Jul 7, 2007, Jan Hubicka <> wrote:

>> On Jun 28, 2007, Andrew MacLeod <> wrote:
>> > I fooled around with some simple cases, and didn't find anything that
>> > made much difference.  Whats a testcase you have which shows this
>> > helping?
>> Err...  I'm sure I had something when I posted the patch, but the
>> build tree in which I came up with the testcase is long gone, and I no
>> longer remember the details.  On a more recent build tree, I couldn't
>> really find any case in which the patch really made a difference as to
>> debug info :-(

Given the above

> this patch seems to be responsible for 90% memory consumption increase
> at rtl-optimization/28071 -O3:

and this

And rightly so, I guess.  Formerly, we discarded information to the
point of making the program utterly undebuggable.

this can't be true and so I propose to revert this patch for now. Especially on the ground that my fear of increasing memory usage turned out to be true.


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