#15062: num009 is incredibly platform-sensitive -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: high | Milestone: 8.6.1 Component: Test Suite | Version: 8.2.2 Resolution: | Keywords: ci-breakage Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): Nothing is broken; all of the variations I've seen are at numerical precision. This is just expected variation from platform-to-platform. The transcendental operations tested by `num009` are typically implemented in terms of the platform's supported floating point operations by `libc`. `libc`s vary in their implementation strategies for these operations. Moreover, the extra precision of x87 (which we still use by default on x86) has an impact. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15062#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler