#14165: Investigate regressions from simplifier refactor -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.3 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: -------------------------------------+------------------------------------- Commit 33452dfc6cf891b59d63fa9fe138b18cbce4df81 (Refactor the Mighty Simplifier) caused test suite regressions under 64-bit Linux and OSX (but not 32-bit Linux or Windows). See the [https://phabricator.haskell.org/B17259 build results]. Under 64-bit Linux: {{{ max_bytes_used value is too high: Expected T1969(normal) max_bytes_used: 16679176 +/-15% Lower bound T1969(normal) max_bytes_used: 14177299 Upper bound T1969(normal) max_bytes_used: 19181053 Actual T1969(normal) max_bytes_used: 19199872 Deviation T1969(normal) max_bytes_used: 15.1 % *** unexpected stat test failure for T1969(normal) bytes allocated value is too high: Expected T12150(optasm) bytes allocated: 70773000 +/-5% Lower bound T12150(optasm) bytes allocated: 67234350 Upper bound T12150(optasm) bytes allocated: 74311650 Actual T12150(optasm) bytes allocated: 74358208 Deviation T12150(optasm) bytes allocated: 5.1 % }}} Under 64-bit OSX: {{{ bytes allocated value is too high: Expected T12150(optasm) bytes allocated: 70773000 +/-5% Lower bound T12150(optasm) bytes allocated: 67234350 Upper bound T12150(optasm) bytes allocated: 74311650 Actual T12150(optasm) bytes allocated: 74503808 Deviation T12150(optasm) bytes allocated: 5.3 % *** unexpected stat test failure for T12150(optasm) }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14165 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler