id summary reporter owner description type status priority milestone component version resolution keywords cc os architecture failure difficulty testcase blockedby blocking related 4007 Look again at eta expansion during gentle simplification simonmar igloo "Today I noticed that `sequence_ . replicate` was not being optimised in the HEAD, and Simon and I tracked it down to `sequence_` not being inlined, which was a result of it not being eta-expanded early. This patch reverted to the 6.12.x behaviour: {{{ Fri Apr 23 05:48:53 PDT 2010 Simon Marlow * reinstate eta-expansion during SimplGently, to fix inlining of sequence_ }}} We might want to revisit this before 6.14.1. The effects on nofib follow: {{{ -------------------------------------------------------------------------------- Program Size Allocs Runtime Elapsed -------------------------------------------------------------------------------- anna -0.7% -0.0% 0.14 0.14 ansi -0.8% +0.2% 0.00 0.00 atom -0.9% +0.0% +0.6% +1.4% awards -0.8% +0.1% 0.00 0.00 banner -0.7% -0.1% 0.00 0.00 bernouilli -0.8% +0.0% +0.0% -0.3% boyer2 -0.7% -0.0% 0.01 0.01 bspt -0.7% -0.0% 0.01 0.01 cacheprof -0.8% -0.1% +0.7% +6.2% calendar -0.9% +0.0% 0.00 0.00 cichelli -0.7% -0.0% 0.12 0.13 circsim -0.9% +0.0% -0.1% -0.2% clausify -0.8% +0.0% 0.05 0.05 comp_lab_zift -0.7% -0.0% -0.5% +0.0% compress -0.7% -0.0% -0.8% -1.0% compress2 -0.8% -0.0% +11.0% +12.5% constraints -0.9% +0.0% +0.8% +1.0% cryptarithm1 -0.8% -0.0% +0.5% +0.1% cryptarithm2 -0.8% -0.0% 0.01 0.02 cse -0.8% -0.2% 0.00 0.00 eliza -0.7% -0.0% 0.00 0.00 event -0.7% -0.0% -3.9% -0.3% exp3_8 -0.9% +0.0% 0.16 0.17 expert -0.9% -0.1% 0.00 0.00 fem -0.7% -0.0% 0.03 0.04 fft -0.7% -0.0% 0.04 0.05 fft2 -0.7% -0.0% 0.09 0.10 fibheaps -1.1% +0.0% 0.04 0.04 fish -0.7% -0.1% 0.02 0.02 fluid -0.7% +4.7% 0.01 0.01 fulsom -0.8% -0.0% +0.9% -0.2% gamteb -0.7% -0.0% 0.12 0.13 gcd -0.8% -0.0% 0.03 0.03 gen_regexps -0.8% -0.1% 0.00 0.00 genfft -0.7% -0.0% 0.05 0.05 gg -0.8% -0.0% 0.01 0.02 grep -0.9% -0.1% 0.00 0.00 hidden -0.8% (stdout) (stdout) (stdout) hpg -0.9% -1.4% +0.6% +2.6% ida -0.7% +0.0% 0.14 0.15 infer -0.7% -0.0% 0.06 0.07 integer -0.9% +0.0% -0.6% -0.3% integrate -0.9% -0.0% +2.5% +3.0% knights -0.9% -0.0% 0.01 0.01 lcss -0.9% +0.0% +0.3% +0.9% life -0.8% -0.0% -0.4% +0.0% lift -0.7% -0.0% 0.00 0.00 listcompr -0.7% -0.0% 0.14 0.15 listcopy -0.7% -0.0% 0.15 0.15 maillist -0.8% -0.4% 0.08 0.12 mandel -0.7% +0.0% 0.16 0.16 mandel2 -0.8% -0.0% 0.01 0.01 minimax -0.7% -0.0% 0.00 0.00 mkhprog -0.9% -0.3% 0.00 0.00 multiplier -0.8% -0.0% 0.15 0.16 nucleic2 -0.7% -0.0% 0.10 0.10 para -0.9% -0.0% -4.8% -4.5% paraffins -0.9% -0.0% 0.12 0.14 parser -0.7% -0.0% 0.04 0.05 parstof -0.6% -0.0% 0.00 0.01 pic -0.7% -0.0% 0.01 0.01 power -0.8% -0.0% +1.1% +1.1% pretty -0.8% -0.0% 0.00 0.00 primes -0.9% +0.0% 0.07 0.08 primetest -0.8% +0.0% -0.5% +0.3% prolog -0.7% -0.1% 0.00 0.00 puzzle -0.7% -0.0% -0.5% +3.7% queens -0.9% -0.0% 0.02 0.03 reptile -0.7% +0.7% 0.02 0.02 rewrite -0.8% -0.0% 0.02 0.02 rfib -0.9% +0.4% 0.06 0.06 rsa -0.8% -0.0% 0.12 0.12 scc -0.8% -0.2% 0.00 0.00 sched -0.7% -0.0% 0.02 0.03 scs -0.8% +0.7% -1.0% -1.0% simple -0.7% -0.0% +2.0% +1.7% solid -0.7% -0.0% 0.20 0.21 sorting -0.8% -0.1% 0.00 0.00 sphere -0.9% -7.8% 0.14 0.14 symalg -0.7% +0.1% 0.04 0.04 tak -0.9% +2.6% 0.02 0.02 transform -0.7% +0.0% +2.0% +2.1% treejoin -0.9% -0.0% -2.7% +0.2% typecheck -0.7% -0.0% +0.4% -0.2% veritas -0.6% +0.0% 0.00 0.00 wang -0.7% +0.0% 0.12 0.14 wave4main -0.7% +0.0% +2.5% +2.2% wheel-sieve1 -0.9% +0.0% -2.2% -2.7% wheel-sieve2 -0.9% +0.0% +4.9% +3.1% x2n1 -0.8% -0.0% 0.03 0.03 -------------------------------------------------------------------------------- Min -1.1% -7.8% -4.8% -4.5% Max -0.6% +4.7% +11.0% +12.5% Geometric Mean -0.8% -0.0% +0.4% +1.1% }}} compress2 might be worth a look. " bug closed normal 7.0.1 Compiler 6.13 fixed Unknown/Multiple Unknown/Multiple Runtime performance bug T4007