#10527: Panic Simplifier ticks exhausted with type families -------------------------------------+------------------------------------- Reporter: sopvop | Owner: simonpj Type: bug | Status: new Priority: highest | Milestone: 7.10.2 Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by bgamari): It appears that the following failures are triggered by the fix on `ghc-7.10`, * `simplCore/should_compile T4945 [bad stdout] (normal)` {{{ =====> T4945(normal) 1533 of 4449 [0, 1, 0] cd ./simplCore/should_compile && $MAKE -s --no-print-directory T4945 T4945.run.stdout 2> T4945.run.stderr Actual stdout output differs from expected: --- ./simplCore/should_compile/T4945.stdout 2015-07-06 17:16:38.859135774 -0400 +++ ./simplCore/should_compile/T4945.run.stdout 2015-07-07 03:57:30.592499506 -0400 @@ -1,7 +0,0 @@ - -> STUArray RealWorld Int Int - (ipv3 [OS=OneShot] :: STUArray RealWorld Int Int) -> - case ipv3 of _ [Occ=Dead] { STUArray ds5 ds6 dt ds7 -> - (Data.Array.Base.STUArray - (Data.Array.Base.STUArray - (Data.Array.Base.STUArray - (Data.Array.Base.STUArray *** unexpected failure for T4945(normal) }}} * `perf/should_run T5113 [stat not good enough] (normal)` {{{ =====> T5113(normal) 2426 of 4449 [0, 2, 0] cd ./perf/should_run && "/home/ben/trees/ghc/ghc-7.10/inplace/bin/ghc- stage2" -o T5113 T5113.hs -fforce-recomp -dcore-lint -dcmm-lint -dno- debug-output -no-user-package-db -rtsopts -fno-warn-tabs -fno-ghci-history -O > T5113.comp.stderr 2>&1 cd ./perf/should_run && ./T5113 +RTS -V0 -tT5113.stats --machine-readable -RTS T5113.run.stdout 2> T5113.run.stderr bytes allocated value is too high: Expected T5113(normal) bytes allocated: 8000000 +/-5% Lower bound T5113(normal) bytes allocated: 7600000 Upper bound T5113(normal) bytes allocated: 8400000 Actual T5113(normal) bytes allocated: 806747568 Deviation T5113(normal) bytes allocated: 9984.3 % *** unexpected stat test failure for T5113(normal) }}} * `perf/compiler T9961 [stat too good] (normal)` {{{ =====> T9961(normal) 2474 of 4449 [0, 2, 0] cd ./perf/compiler && "/home/ben/trees/ghc/ghc-7.10/inplace/bin/ghc- stage2" -c T9961.hs -fforce-recomp -dno-debug-output -no-user-package-db -rtsopts -fno-warn-tabs -fno-ghci-history -O +RTS -V0 -tT9961.comp.stats --machine-readable -RTS > T9961.comp.stderr 2>&1 bytes allocated value is too low: (If this is because you have improved GHC, please update the test so that GHC doesn't regress again) Expected T9961(normal) bytes allocated: 663978160 +/-5% Lower bound T9961(normal) bytes allocated: 630779252 Upper bound T9961(normal) bytes allocated: 697177068 Actual T9961(normal) bytes allocated: 616521968 Deviation T9961(normal) bytes allocated: -7.1 % *** unexpected stat test failure for T9961(normal) }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10527#comment:25 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler