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<div style="font-family:Calibri,sans-serif; font-size:11pt">We ran cpu2006 INT rate for x86. We didnt see any perecptible positive or negative swing in any of the bms.
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Thx<br>
Dibyendu<br>
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<span style="font-family:Calibri,sans-serif; font-size:11pt; font-weight:bold">From:
</span><span style="font-family:Calibri,sans-serif; font-size:11pt"><a href="mailto:llvm-dev@lists.llvm.org">via llvm-dev</a></span><br>
<span style="font-family:Calibri,sans-serif; font-size:11pt; font-weight:bold">Sent:
</span><span style="font-family:Calibri,sans-serif; font-size:11pt">ý5/ý10/ý2017 3:19 AM</span><br>
<span style="font-family:Calibri,sans-serif; font-size:11pt; font-weight:bold">To:
</span><span style="font-family:Calibri,sans-serif; font-size:11pt"><a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a></span><br>
<span style="font-family:Calibri,sans-serif; font-size:11pt; font-weight:bold">Subject:
</span><span style="font-family:Calibri,sans-serif; font-size:11pt">Re: [llvm-dev] Enable new inline cost heuristic for switch</span><br>
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Kindly ping.<br>
<br>
Can anyone please take a chance to test the new switch inline cost <br>
heuristic (r301649). In my experiment for spec2000/spec2006/llvm-ts in <br>
AArch64, significant performance (+17.8%) and size (-8%) benefit was <br>
observed in spec2000/vertex with LTO while no significant code size / <br>
performance regression was found in O3/O2/Os. I posted D32653 to enable <br>
the flag (-inline-generic-switch-cost) for your test. It will be really <br>
great if this heuristic is tested in different targets and for other <br>
applications.<br>
<br>
Thanks,<br>
Jun<br>
<br>
On 2017-04-28 15:35, junbuml@codeaurora.org wrote:<br>
> Hi,<br>
> <br>
> I'm trying to turn on a flag (-inline-generic-switch-cost) introduced<br>
> in r301649 which improved the inline cost heuristic for switch. In my<br>
> experiment for LLVM test suite and spec2000/2006 in AArch64, +17.82%<br>
> performance and -8% code size reduce was observed in spec2000/vertex<br>
> with O3 LTO. No significant code size / performance regression was<br>
> found in O3/O2/Os.<br>
> <br>
> Before we turn this flag on by default, I want this change to be<br>
> tested on other targets as well as for other applications. Can anyone<br>
> please take a change to test this and share the result in D32653.<br>
> <br>
> Thanks,<br>
> Jun<br>
<br>
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