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<p class="MsoNormal"><span style="font-size:12.0pt">I’ve just pushed a bunch of Core-to-Core optimisation changes that have been sitting in my tree for ages. The aggregate effect on nofib is very modest, but they are mostly aimed at corner cases, and consolidation.<o:p></o:p></span></p>
<p class="Code"> Program Size Allocs Runtime Elapsed TotalMem<o:p></o:p></p>
<p class="Code"> Min -7.2% -3.1% -7.8% -7.8% -14.8%<o:p></o:p></p>
<p class="Code"> Max +5.6% +1.3% +20.0% +19.7% +50.0%<o:p></o:p></p>
<p class="Code">Geometric Mean -0.3% -0.1% +1.7% +1.7% +0.2%<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">The runtime increases are spurious – I checked.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">A couple of perf/compiler tests (i.e. GHC’s own performance) improve significantly, which is a good sign.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">I have a few more to come but wanted to get this lot out of my hair.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Simon<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="Code">a1a400ed * Testsuite wibbles<o:p></o:p></p>
<p class="Code">39ccdf91 * White space only<o:p></o:p></p>
<p class="Code">6c6b001e * Remove dead lookup_dfun_id (merge-o)<o:p></o:p></p>
<p class="Code">a0b2897e * Simple refactor of the case-of-case transform<o:p></o:p></p>
<p class="Code">bb877266 * Performance changes<o:p></o:p></p>
<p class="Code">082e41b4 * Testsuite wibbles<o:p></o:p></p>
<p class="Code">1122857e * Run float-inwards immediately before the strictness analyser.<o:p></o:p></p>
<p class="Code">86a2ebf8 * Comments only<o:p></o:p></p>
<p class="Code">6d48ce29 * Make tidyProgram discard speculative specialisation rules<o:p></o:p></p>
<p class="Code">fa582cc4 * Fix an egregious bug in the NonRec case of bindFreeVars<o:p></o:p></p>
<p class="Code">b9e49d3e * Add -fspecialise-aggressively<o:p></o:p></p>
<p class="Code">dce70957 * Compiler performance increases -- yay!<o:p></o:p></p>
<p class="Code">a3e207f6 * More SPEC rules fire<o:p></o:p></p>
<p class="Code">baa3c9a3 * Wibbles to "...plus N others" error message about instances in scope<o:p></o:p></p>
<p class="Code">99178c1f * Specialise monad functions, and make them INLINEABLE<o:p></o:p></p>
<p class="Code">2ef997b8 * Slightly improve fusion rules for 'take'<o:p></o:p></p>
<p class="Code">949ad67e * Don't float out (classop dict e1 e2)<o:p></o:p></p>
<p class="Code">34363330 * Move the Enum Word instance into GHC.Enum<o:p></o:p></p>
<p class="Code">4c03791f * Specialise Eq, Ord, Read, Show at Int, Char, String<o:p></o:p></p>
<p class="Code">9cf5906b * Make worker/wrapper work on INLINEABLE things<o:p></o:p></p>
<p class="Code">8f099374 * Make maybeUnfoldingTemplate respond to DFunUnfoldings<o:p></o:p></p>
<p class="Code">3af1adf9 * Kill unused setUnfoldingTemplate<o:p></o:p></p>
<p class="Code">6e0f6ede * Refactor unfoldings<o:p></o:p></p>
<p class="Code">e9cd1d5e * Less voluminous output when printing continuations<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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