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Re: A recent patch increased GCC's memory consumption!
On Sun, 17 Jul 2005, Jan Hubicka wrote:
> > changes shouldn't affect code generation, so finding the first place code
> > generation changes between the before and after compilers might help.
>
> What exactly you mean by code generation? Apparently the gimple is
> different in a way that there are fewer conversions that in turn changes
> optimizer decisions, right? So both RTL and gimple should be
> different...
There should be fewer different types with the same width, so fewer
conversions among such types - but such types are effectively identical
for code generation purposes, so the conversions ought to be eliminated at
an early stage and make no difference to subsequent optimizer decisions.
--
Joseph S. Myers http://www.srcf.ucam.org/~jsm28/gcc/
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