#14619: Output value of program changes upon compiling with -O optimizations -------------------------------------+------------------------------------- Reporter: sheaf | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Resolution: | Keywords: Operating System: Windows | Architecture: x86_64 Type of failure: Incorrect result | (amd64) at runtime | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Phyx-): Guess it is Windows specific... {{{ Tamar@Rage ~/g/l/p/t/T3994.run> ghc "bug.hs" -O2 -fforce-recomp; ./bug.exe [1 of 1] Compiling Main ( bug.hs, bug.o ) Linking bug.exe ... Just ((0.0,0.0,0.0),0.0) Just ((0.0,0.0,100.0),1.0) }}} {{{ Tamar@Rage ~/g/l/p/t/T3994.run> ghc "bug.hs" -O2 -fforce-recomp -fno- worker-wrapper; ./bug.exe [1 of 1] Compiling Main ( bug.hs, bug.o ) Linking bug.exe ... Just ((0.0,0.0,100.0),1.0) Just ((0.0,0.0,100.0),1.0) }}} {{{ Tamar@Rage ~/g/l/p/t/T3994.run> ~/ghc2/inplace/bin/ghc-stage2.exe "bug.hs" -O2 -fforce-recomp; ./bug.exe [1 of 1] Compiling Main ( bug.hs, bug.o ) Linking bug.exe ... Just ((0.0,0.0,100.0),1.0) Just ((0.0,0.0,100.0),1.0) }}} So it seems to work on HEAD also, but the 8.0.2 fails.. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14619#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler