#8960: SpecConstr usage explodes beyond 4GB with GHC 7.8.1 rc 2 -----------------------------------+--------------------------------------- Reporter: MichalGajda | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.8.1-rc2 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: Compile-time crash Unknown/Multiple | Test Case: cabal install hPDB Difficulty: Unknown | Blocking: Blocked By: | Related Tickets: | -----------------------------------+--------------------------------------- GHC 7.8 rc2 exhausts all memory on `Bio.PDB.EventParser.PDBEventParser` module in -O3 mode, but not in -O2 mode. The tail of ''-v3'' input seems to indicate that it dies during SpecConstr phase. The module successfully compiled with below 2GB RAM since GHC 6.12, so I wonder why the memory use exploded with the most recent version. *** SpecConstr: ==================== SpecConstr ==================== Result size of SpecConstr STEPS TO REPRODUCE: 1. `cabal install hPDB` RESULT EXPECTED: Successful compilation and installation CURRENT RESULT: Exhausts available memory and crashes when compiling `Bio.PDB.EventParser.PDBEventParser`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8960 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler