#7411: Exceptions are optimized away in certain situations -------------------------------------+------------------------------------- Reporter: SimonHengel | Owner: (none) Type: bug | Status: new Priority: high | Milestone: 8.6.1 Component: Compiler | Version: 7.6.1 Resolution: | Keywords: seq, deepseq, | evaluate, exceptions Operating System: Linux | Architecture: x86_64 | (amd64) Type of failure: Incorrect result | Test Case: at runtime | simplCore/should_fail/T7411 Blocked By: | Blocking: Related Tickets: #5129 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by tdammers): Compiling on GHC HEAD reproduces the problem: `../ghc/HEAD/_build/stage1/bin/ghc example.hs -fforce-recomp -O` produces a program that runs without error, while `../ghc/HEAD/_build/stage1/bin/ghc example.hs -fforce-recomp` behaves as it should. Comparing simplified Core shows that with `-O`, `deepseq` no longer appears in the output, so it seems that inlining `deepseq` is part of the problem. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7411#comment:17 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler