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Re: [Patch,optimization]: Optimized changes in the estimate register pressure cost.
- From: Segher Boessenkool <segher at kernel dot crashing dot org>
- To: Ajit Kumar Agarwal <ajit dot kumar dot agarwal at xilinx dot com>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Vinod Kathail <vinodk at xilinx dot com>, Shail Aditya Gupta <shailadi at xilinx dot com>, Vidhumouli Hunsigida <vidhum at xilinx dot com>, Nagaraju Mekala <nmekala at xilinx dot com>
- Date: Sun, 27 Sep 2015 09:19:16 -0500
- Subject: Re: [Patch,optimization]: Optimized changes in the estimate register pressure cost.
- Authentication-results: sourceware.org; auth=none
- References: <37378DC5BCD0EE48BA4B082E0B55DFAA42999946 at XAP-PVEXMBX02 dot xlnx dot xilinx dot com>
On Sat, Sep 26, 2015 at 04:51:20AM +0000, Ajit Kumar Agarwal wrote:
> SPEC CPU 2000 benchmarks are run and there is following impact on the performance
> and code size.
>
> ratio with the optimization vs ratio without optimization for INT benchmarks
> (3807.632 vs 3804.661)
>
> ratio with the optimization vs ratio without optimization for FP benchmarks
> ( 4668.743 vs 4778.741)
Did you swap these? You're saying FP got significantly worse?
Segher