#12790: GHC 8.0.1 uses copious amounts of RAM and time when trying to compile lambdabot-haskell-plugins -------------------------------------+------------------------------------- Reporter: clint | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Description changed by clint: @@ -7,23 +7,24 @@ - *** Common sub-expression [Lambdabot.Plugin.Haskell.Pl.Parser]: - Result size of Common sub-expression - = {terms: 39,049, types: 30,851, coercions: 990} - !!! Common sub-expression [Lambdabot.Plugin.Haskell.Pl.Parser]: - finished in 72.00 milliseconds, allocated 44.536 megabytes - *** Float inwards [Lambdabot.Plugin.Haskell.Pl.Parser]: - Result size of Float inwards - = {terms: 39,049, types: 30,851, coercions: 990} - !!! Float inwards [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in - 68.00 milliseconds, allocated 60.337 megabytes - *** Simplifier [Lambdabot.Plugin.Haskell.Pl.Parser]: - Result size of Simplifier iteration=1 - = {terms: 977,045, types: 299,334, coercions: 1,058} - Result size of Simplifier iteration=2 - = {terms: 926,036, types: 263,306, coercions: 932} - Result size of Simplifier - = {terms: 922,724, types: 262,202, coercions: 932} - !!! Simplifier [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in - 15480.00 milliseconds, allocated 9384.823 megabytes - *** CoreTidy [Lambdabot.Plugin.Haskell.Pl.Parser]: - Result size of Tidy Core - = {terms: 922,623, types: 261,789, coercions: 865} - !!! CoreTidy [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 2060.00 + {{{ + *** Common sub-expression [Lambdabot.Plugin.Haskell.Pl.Parser]: + Result size of Common sub-expression + = {terms: 39,049, types: 30,851, coercions: 990} + !!! Common sub-expression [Lambdabot.Plugin.Haskell.Pl.Parser]: finished + in 72.00 milliseconds, allocated 44.536 megabytes + *** Float inwards [Lambdabot.Plugin.Haskell.Pl.Parser]: + Result size of Float inwards + = {terms: 39,049, types: 30,851, coercions: 990} + !!! Float inwards [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 68.00 + milliseconds, allocated 60.337 megabytes + *** Simplifier [Lambdabot.Plugin.Haskell.Pl.Parser]: + Result size of Simplifier iteration=1 + = {terms: 977,045, types: 299,334, coercions: 1,058} + Result size of Simplifier iteration=2 + = {terms: 926,036, types: 263,306, coercions: 932} + Result size of Simplifier + = {terms: 922,724, types: 262,202, coercions: 932} + !!! Simplifier [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 15480.00 + milliseconds, allocated 9384.823 megabytes + *** CoreTidy [Lambdabot.Plugin.Haskell.Pl.Parser]: + Result size of Tidy Core + = {terms: 922,623, types: 261,789, coercions: 865} + !!! CoreTidy [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 2060.00 @@ -31,6 +32,6 @@ - writeBinIface: 95 Names - writeBinIface: 259 dict entries - *** CorePrep [Lambdabot.Plugin.Haskell.Pl.Parser]: - Result size of CorePrep - = {terms: 1,128,145, types: 347,063, coercions: 865} - !!! CorePrep [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 3468.00 + writeBinIface: 95 Names + writeBinIface: 259 dict entries + *** CorePrep [Lambdabot.Plugin.Haskell.Pl.Parser]: + Result size of CorePrep + = {terms: 1,128,145, types: 347,063, coercions: 865} + !!! CorePrep [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 3468.00 @@ -38,2 +39,3 @@ - *** Stg2Stg: - *** CodeGen [Lambdabot.Plugin.Haskell.Pl.Parser]: + *** Stg2Stg: + *** CodeGen [Lambdabot.Plugin.Haskell.Pl.Parser]: + }}} New description: When building lambdabot-haskell-plugins, Lambdabot.Plugin.Haskell.Pl.Parser compiles without incident on the non- profiling run, but cripples the build machine on the profiling run. An excerpt of -v3 output is below to show the number of terms skyrocketing. {{{ *** Common sub-expression [Lambdabot.Plugin.Haskell.Pl.Parser]: Result size of Common sub-expression = {terms: 39,049, types: 30,851, coercions: 990} !!! Common sub-expression [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 72.00 milliseconds, allocated 44.536 megabytes *** Float inwards [Lambdabot.Plugin.Haskell.Pl.Parser]: Result size of Float inwards = {terms: 39,049, types: 30,851, coercions: 990} !!! Float inwards [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 68.00 milliseconds, allocated 60.337 megabytes *** Simplifier [Lambdabot.Plugin.Haskell.Pl.Parser]: Result size of Simplifier iteration=1 = {terms: 977,045, types: 299,334, coercions: 1,058} Result size of Simplifier iteration=2 = {terms: 926,036, types: 263,306, coercions: 932} Result size of Simplifier = {terms: 922,724, types: 262,202, coercions: 932} !!! Simplifier [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 15480.00 milliseconds, allocated 9384.823 megabytes *** CoreTidy [Lambdabot.Plugin.Haskell.Pl.Parser]: Result size of Tidy Core = {terms: 922,623, types: 261,789, coercions: 865} !!! CoreTidy [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 2060.00 milliseconds, allocated 613.585 megabytes writeBinIface: 95 Names writeBinIface: 259 dict entries *** CorePrep [Lambdabot.Plugin.Haskell.Pl.Parser]: Result size of CorePrep = {terms: 1,128,145, types: 347,063, coercions: 865} !!! CorePrep [Lambdabot.Plugin.Haskell.Pl.Parser]: finished in 3468.00 milliseconds, allocated 1718.453 megabytes *** Stg2Stg: *** CodeGen [Lambdabot.Plugin.Haskell.Pl.Parser]: }}} -- -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12790#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler