[rfc] coalesce stack slots

[Richard Henderson]

On Tue, Sep 07, 2004 at 05:22:53PM -0400, Vladimir Makarov wrote:
> This weekend I got some SPECINT results for your patch for P4.  I've
> checked -mtune=i386 and -march=i386/-mtune=pentium4.  I am sorry,
> Richard but in overall the score with the patch results in about 0.5%
> slower code.  I think freedom in insn scheduling (performed by P4) is
> more important then better data locality for SPECINT.

Any chance you could point me at the particular variables being combined
in SPECINT that is causing the problem?  I have trouble believing that
many such variables exist.


r~