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Re: GCC mini-summit - compiling for a particular architecture
On Mon, 23 Apr 2007, Mark Mitchell wrote:
> > I'm certainly not trying to suggest that we run SPEC on every
> > architecture, and then make -O2 be the set of optimization options that
> > happens to do best there, however bizarre.
On Mon, Apr 23, 2007 at 01:21:20PM -0400, Kaveh R. GHAZI wrote:
> Why not? Is your objection because SPEC doesn't reflect real-world apps
> or because the option set might be "bizarre"?
In this case "bizarre" would mean "untested": if we find some set of 15
options that maximizes SPEC performance, it's quite likely that no one
has used that option combination before; building complete distros with
this untested option set would almost certainly find bugs.
Still might be worth trying, but would require extra and careful testing.