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<div class="">On 10 May 2017, at 17:36, Quentin Colombet <<a href="mailto:qcolombet@apple.com" class="">qcolombet@apple.com</a>> wrote:</div>
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<li class="">MultiSource/Benchmarks/mediabench/mpeg2/mpeg2dec/mpeg2decode (46%): Function Reference_IDCT: Probably due to creating all constants in the entry BB + spilling floating point data through an X register:
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<li class="">FastISel:<br class="">
<font face="Menlo" class="">fadd d0, d1, d0<br class="">
str d0, [sp,#528]</font></li><li class="">GlobalISel:<br class="">
<font face="Menlo" class="">fadd d0, d1, d0<br class="">
fmov x9, d0<br class="">
stur x9, [x29,#-48]</font></li></ul>
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<div class="">Good finding, I forgot to do stores in my previous fix. I’ll do them shortly.</div>
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Should be fixed by r<span class="" style="font-family: Menlo; font-size: 11px; background-color: rgb(255, 255, 255);">302679</span></div>
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<div>Thanks Quentin,</div>
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<div>That reduces the slow-down when enabling globalisel at -O0 from 13% (on r302453) to 9.5% (on r302679) in my experiments.</div>
<div>The code size increase also reduces from just over 3% to 2.8%.</div>
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<div>Kristof</div>
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