#14688: Note [Lone variables] leads to missing a case-of-case opportunity -------------------------------------+------------------------------------- Reporter: mpickering | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by mpickering): Nofib results, so generally reduced allocations but very little change overall. {{{ -------------------------------------------------------------------------------- Program Size Allocs Runtime Elapsed TotalMem -------------------------------------------------------------------------------- CS 0.0% 0.0% 0.183 0.183 0.0% CSD 0.0% 0.0% -0.1% -0.1% 0.0% FS 0.0% 0.0% +0.4% +0.5% 0.0% S 0.0% 0.0% -0.4% -0.5% 0.0% VS 0.0% 0.0% +0.3% +0.3% 0.0% VSD 0.0% 0.0% 0.009 0.009 0.0% VSM 0.0% 0.0% -0.4% -0.4% 0.0% anna +0.0% +0.3% 0.062 0.062 0.0% ansi 0.0% 0.0% 0.000 0.000 0.0% atom 0.0% 0.0% 0.175 0.175 0.0% awards -0.0% -0.2% 0.000 0.000 0.0% banner 0.0% 0.0% 0.000 0.000 0.0% bernouilli 0.0% 0.0% 0.095 0.095 0.0% binary-trees 0.0% 0.0% -0.0% +0.0% 0.0% boyer 0.0% 0.0% 0.022 0.022 0.0% boyer2 +0.0% 0.0% 0.004 0.004 0.0% bspt +0.0% -0.1% 0.004 0.004 0.0% cacheprof 0.0% -0.0% -0.1% -0.1% 0.0% calendar 0.0% 0.0% 0.000 0.000 0.0% cichelli 0.0% 0.0% 0.043 0.043 0.0% circsim 0.0% 0.0% +0.3% +0.3% 0.0% clausify 0.0% 0.0% 0.020 0.020 0.0% comp_lab_zift -0.0% -0.0% 0.105 0.105 0.0% compress 0.0% 0.0% 0.073 0.073 0.0% compress2 +0.1% -0.7% 0.077 0.077 -4.0% constraints 0.0% 0.0% +0.2% +0.2% 0.0% cryptarithm1 0.0% 0.0% -0.1% +0.1% 0.0% cryptarithm2 0.0% 0.0% 0.004 0.004 0.0% cse 0.0% 0.0% 0.001 0.001 0.0% digits-of-e1 0.0% 0.0% +0.0% +0.0% 0.0% digits-of-e2 0.0% 0.0% -0.3% -0.3% 0.0% eliza +0.0% -2.4% 0.000 0.000 0.0% event 0.0% 0.0% 0.083 0.083 0.0% exact-reals -0.0% 0.0% +2.7% +2.6% 0.0% exp3_8 0.0% 0.0% 0.132 0.132 0.0% expert 0.0% 0.0% 0.000 0.000 0.0% fannkuch-redux 0.0% 0.0% -1.7% -1.7% 0.0% fasta 0.0% 0.0% -0.5% -0.5% 0.0% fem +0.0% -0.0% 0.013 0.013 0.0% fft 0.0% 0.0% 0.019 0.019 0.0% fft2 0.0% 0.0% 0.027 0.027 0.0% fibheaps 0.0% 0.0% 0.014 0.014 0.0% fish 0.0% 0.0% 0.006 0.006 0.0% fluid +0.0% +0.1% 0.004 0.004 0.0% fulsom +0.1% -13.3% 0.158 0.158 +190.0% gamteb 0.0% 0.0% 0.023 0.023 0.0% gcd 0.0% 0.0% 0.024 0.024 0.0% gen_regexps 0.0% 0.0% 0.000 0.000 0.0% genfft 0.0% 0.0% 0.018 0.018 0.0% gg +0.0% -0.1% 0.005 0.005 0.0% grep 0.0% 0.0% 0.000 0.000 0.0% hidden +0.0% 0.0% -4.2% -4.2% 0.0% hpg 0.0% 0.0% 0.048 0.048 0.0% ida +0.0% +0.3% 0.052 0.052 0.0% infer 0.0% 0.0% 0.029 0.029 0.0% integer 0.0% 0.0% -0.4% -0.4% 0.0% integrate 0.0% 0.0% 0.070 0.070 0.0% k-nucleotide 0.0% 0.0% +4.9% +4.9% 0.0% kahan 0.0% 0.0% 0.195 0.195 0.0% knights 0.0% 0.0% 0.002 0.002 0.0% lambda 0.0% 0.0% +0.3% +0.3% 0.0% last-piece 0.0% 0.0% +0.6% +0.6% 0.0% lcss 0.0% 0.0% -0.3% -0.4% 0.0% life 0.0% 0.0% 0.136 0.136 0.0% lift +0.0% -0.1% 0.001 0.001 0.0% linear 0.0% 0.0% +0.2% +0.2% 0.0% listcompr 0.0% 0.0% 0.056 0.056 0.0% listcopy 0.0% 0.0% 0.060 0.060 0.0% maillist 0.0% 0.0% 0.035 0.035 +1.9% mandel 0.0% 0.0% 0.040 0.040 0.0% mandel2 0.0% 0.0% 0.002 0.002 0.0% mate +0.0% -5.2% -3.2% -3.2% 0.0% minimax 0.0% 0.0% 0.001 0.001 0.0% mkhprog 0.0% 0.0% 0.001 0.001 0.0% multiplier 0.0% 0.0% 0.056 0.056 0.0% n-body 0.0% 0.0% -0.5% -0.5% 0.0% nucleic2 0.0% 0.0% 0.046 0.046 0.0% para -0.0% 0.0% 0.165 0.166 0.0% paraffins 0.0% 0.0% 0.064 0.064 0.0% parser +0.0% -0.0% 0.015 0.015 0.0% parstof +0.0% -0.0% 0.003 0.003 0.0% pic 0.0% 0.0% 0.004 0.004 0.0% pidigits 0.0% 0.0% +0.2% +0.1% 0.0% power 0.0% 0.0% 0.196 0.196 0.0% pretty +0.0% -2.8% 0.000 0.000 0.0% primes 0.0% 0.0% 0.040 0.040 0.0% primetest 0.0% 0.0% 0.061 0.061 0.0% prolog 0.0% 0.0% 0.001 0.001 0.0% puzzle 0.0% 0.0% 0.070 0.070 0.0% queens 0.0% 0.0% 0.008 0.008 0.0% reptile -0.0% -0.0% 0.006 0.006 0.0% reverse-complem 0.0% 0.0% 0.064 0.063 0.0% rewrite +0.1% -0.0% 0.010 0.010 0.0% rfib 0.0% 0.0% 0.009 0.009 0.0% rsa 0.0% 0.0% 0.014 0.014 0.0% scc 0.0% 0.0% 0.000 0.000 0.0% sched 0.0% 0.0% 0.011 0.011 0.0% scs +0.0% -0.0% +3.1% +3.1% 0.0% simple +0.1% -0.2% 0.112 0.112 0.0% solid +0.1% +0.0% 0.074 0.074 0.0% sorting 0.0% 0.0% 0.001 0.001 0.0% spectral-norm 0.0% 0.0% -0.7% -0.7% 0.0% sphere +0.0% -0.0% 0.029 0.029 0.0% symalg 0.0% 0.0% 0.005 0.005 0.0% tak 0.0% 0.0% 0.006 0.006 0.0% transform 0.0% 0.0% 0.192 0.192 0.0% treejoin -0.0% -0.0% 0.076 0.076 0.0% typecheck 0.0% 0.0% 0.141 0.141 0.0% veritas +0.2% -1.0% 0.001 0.001 0.0% wang +0.0% -1.6% 0.055 0.055 0.0% wave4main 0.0% 0.0% 0.156 0.156 0.0% wheel-sieve1 0.0% 0.0% -0.2% -0.2% 0.0% wheel-sieve2 +0.0% -0.0% 0.115 0.115 0.0% x2n1 0.0% 0.0% 0.001 0.001 0.0% -------------------------------------------------------------------------------- Min -0.0% -13.3% -4.2% -4.2% -4.0% Max +0.2% +0.3% +4.9% +4.9% +190.0% Geometric Mean +0.0% -0.2% -0.0% -0.0% +0.9% }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14688#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler