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Re: Patch to fix gcc.c-torture/compile/20010102-1.c on IA64 HP-UX


Luis Machado wrote:
Hi,

I've noticed a 3% performance degradation on CPU2000's vortex (32-bit)
with PEAK flags on PPC (POWER6) after this patch went in. Still
investigating what slowed it down, will post more information soon.
I'd be hard pressed to see how this patch could cause any kind of performance regression since it's merely propagating information to the backend that was getting lost in regrename and I don't see that the ppc uses REG_POINTER in its backend.

Jeff


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