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Hi Keno,<br>
<br>
I am talking about runtime. The performance of the generated machine
code. Not the time it takes to lower the IR to machine code.<br>
<br>
We typically only JIT once (taking a few secs) and then run the
generated machine code for hours. So the JIT time (IR -> machine
code) doesn't impact us.<br>
<br>
Cheers<br>
Morten<br>
<br>
<div class="moz-cite-prefix">On 05/02/16 15:58, Keno Fischer wrote:<br>
</div>
<blockquote
cite="mid:CAEoGj_8yXx_copTV6=Qy3jrKK=CzQLANaSoHwFi3+tVyC0YKTA@mail.gmail.com"
type="cite">
<div dir="ltr">Actually, reading over all of this again, I realize
I may have made the wrong statement. The runtime regressions we
see in julia are actually regressions in how long LLVM itself
takes to do the compilation (but since it happens at run time in
the JIT case, I think of it as a regression in our running
time). We have only noticed occasional regressions in the
performance of the generated code (which we are in the process
of fixing). Which kind of regression are you talking about, time
taken by LLVM or time taken by the LLVM-generated code?</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Feb 4, 2016 at 11:44 PM, Rafael
Espíndola <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">On 4
February 2016 at 22:48, Morten Brodersen via llvm-dev<br>
<span class=""><<a moz-do-not-send="true"
href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a>>
wrote:<br>
> Hi Rafael,<br>
><br>
> Not easily (llc).<br>
><br>
> Is there a way to make MCJit not use the large code
model when JIT'ing?<br>
><br>
<br>
</span>I think Davide started adding support for the small
code model.<br>
<br>
Cheers,<br>
Rafael<br>
<div class="HOEnZb">
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