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Re: Beginner's question:Are there any inter-procedural optimization in GCC backend ?
On Thu, Nov 06, 2003 at 12:03:15PM -0800, Zack Weinberg wrote:
> Gabriel Dos Reis <gdr@integrable-solutions.net> writes:
> >
> > Complaints about inlining regressions from 2.95.x to 3.x are evidence
> > that the RTL-inliner is not doing the same as the tree-inliner.
>
> The complaints are of the form "I expected X to be inlined into Y and
> it wasn't." The complaints mostly do not provide hard numbers which
> demonstrate that this caused a measurable performance regression.
> (Some have; I don't dispute that the tree inliner needs improvement.)
See Stepanov benchmark scores.