December 2018 - ghc-tickets

[GHC] #14672: Make likelyhood of branches/conditions available throughout the compiler.
by GHC 28 Dec '18

28 Dec '18

#14672: Make likelyhood of branches/conditions available throughout the compiler. -------------------------------------+------------------------------------- Reporter: AndreasK | Owner: (none) Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- For simple code such as `if a > 10 then foo else bar` it can make a big difference if we jump on `a > 10` or `a <= 10`. We already tracked the likelyhood of such conditionals for stack/heap checks in Cmm. I recently updated the native codegen on X86 to take this information into account where available and in one edge case this improved execution time from 1.7s to 1.5s! Having this info available for other cases like bound checking (assume valid) or partial pattern matches (assume no match failure) should be a small win for most programs and hopefully a big one for a few of them. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14672> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #14617, #14610, #14604, #14602, #14579
by GHC 28 Dec '18

28 Dec '18

Batch modification to #14617, #14610, #14604, #14602, #14579 by osa1: milestone to 8.10.1 Comment: Bumping milestones of low-priority tickets. -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=14617%2C14610%2C14604%2C14602%2C14…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #14765, #14729, #14727, #14684, #14673
by GHC 28 Dec '18

28 Dec '18

Batch modification to #14765, #14729, #14727, #14684, #14673 by osa1: milestone to 8.10.1 Comment: Bumping milestones of low-priority tickets. -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=14765%2C14729%2C14727%2C14684%2C14…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #14765, #14729, #14727, #14684, #14673
by GHC 28 Dec '18

28 Dec '18

Batch modification to #14765, #14729, #14727, #14684, #14673 by osa1: milestone to 8.10.1 Comment: Bumping milestones of low-priority tickets. -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=14765%2C14729%2C14727%2C14684%2C14…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #15028, #15020, #15011, #15010, #14911, #14909, ...
by GHC 28 Dec '18

28 Dec '18

Batch modification to #15028, #15020, #15011, #15010, #14911, #14909, #14870, #14839, #14838, #14823, #14816, #14806 by osa1: milestone to 8.10.1 Comment: Bumping milestones of low-priority tickets. -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=15028%2C15020%2C15011%2C15010%2C14…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #14530, #14512, #14509, #14502, #14469, #14412, ...
by GHC 28 Dec '18

28 Dec '18

Batch modification to #14530, #14512, #14509, #14502, #14469, #14412, #14405, #14401, #14400, #14337, #14331, #14319, #14283, #14261, #14252, #14242, #14214, #14165, #14164, #14155, #14111, #14040, #14030, #14023, #14003 by osa1: milestone to 8.10.1 Comment: Bumping milestones of low-priority tickets. -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=14530%2C14512%2C14509%2C14502%2C14…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #15210, #15208, #15205, #15203, #15201, #15200, ...
by GHC 28 Dec '18

28 Dec '18

Batch modification to #15210, #15208, #15205, #15203, #15201, #15200, #15194, #15193, #15191, #15190, #15184, #15183, #15182, #15177, #15175, #15167, #15159, #15156, #15155, #15153, #15148, #15147, #15135, #15130, #15129, #15127, #15126, #15124, #15106, #15100, #15096, #15092, #15091, #15090, #15089, #15081, #15080, #15078, #15077, #15075, #15072, #15070, #15069, #15056, #15054, #15048, #15044, #15043, #15034, #15029 by osa1: milestone to 8.10.1 Comment: Bumping milestones of low-priority tickets. -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=15210%2C15208%2C15205%2C15203%2C15…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #13981, #13944, #13906, #13905, #13904, #13898, ...
by GHC 28 Dec '18

28 Dec '18

Batch modification to #13981, #13944, #13906, #13905, #13904, #13898, #13753, #13724, #13723, #13717, #13693, #13692, #13686, #13647, #13629, #13564, #13554, #13515, #13513, #13511, #13507, #13465, #13448, #13423, #13408, #13406, #13390, #13363, #13360, #13357, #13346, #13331, #13309, #13280, #13243, #13226, #13225, #13189, #13176, #13154, #13153, #13152, #13104, #13093, #13092, #13091, #13090, #13080, #13078, #13072, #13069, #13065, #13003, #13002, #12949, #12941, #12940, #12937, #12934, #12932, #12926, #12913, #12891, #12875, #12808, #12798, #12774, #12765, #12665, #12652, #12636, #12619, #12599, #12581, #12482, #12428, #12389, #12388, #12193, #12090, #12021, #11958, #11955, #11953, #11836, #11749, #11686, #11634, #11594, #11587, #11526, #11503, #11457, #11409, #11394, #11384, #11369, #11359, #11323, #11307 by osa1: milestone to 8.10.1 Comment: Bumping milestones of low-priority tickets. -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=13981%2C13944%2C13906%2C13905%2C13…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #11295, #11261, #11243, #11222, #11204, #11197, ...
by GHC 28 Dec '18

28 Dec '18

Batch modification to #11295, #11261, #11243, #11222, #11204, #11197, #11149, #11092, #10972, #10962, #10892, #10878, #10853, #10789, #10770, #10599, #10542, #10445, #10431, #10352, #10056, #9248, #9244, #9221, #8634, #7593, #7398, #7353, #6132, #6087, #5797, #5620, #4471, #2725, #2408, #2189, #806, #605 by osa1: milestone to 8.10.1 Comment: Bumping milestones of low-priority tickets. -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=11295%2C11261%2C11243%2C11222%2C11…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #15344, #15340, #15338, #15337, #15336, #15328, ...
by GHC 28 Dec '18

28 Dec '18

Batch modification to #15344, #15340, #15338, #15337, #15336, #15328, #15327, #15326, #15322, #15320, #15313, #15312, #15309, #15298, #15297, #15295, #15291, #15288, #15283, #15277, #15272, #15270, #15258, #15257, #15253, #15252, #15251, #15250, #15249, #15248, #15247, #15241, #15227, #15220, #15219, #15211 by osa1: milestone to 8.10.1 Comment: Bumping milestones of low-priority tickets. -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=15344%2C15340%2C15338%2C15337%2C15…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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