#14521: Infinite loop at runtime when a given function is not marked INLINE -------------------------------------+------------------------------------- Reporter: OlivierSohn | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Keywords: | Operating System: MacOS X Architecture: | Type of failure: Incorrect result Unknown/Multiple | at runtime Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- Hello, in https://github.com/OlivierSohn/hamazed/issues/1 I describe the following issue: When compiling on OSX with optimizations (`stack clean && stack build` with resolver `lts-9.12` (ghc 8.0.2)), the program loops infinitely (400% CPU, and execution is blocked) when an animation is triggered, if the function `Animation.animate'` is not inlined. The bug is visible at this commit : https://github.com/OlivierSohn/hamazed/commit/9f25223ef0502f91cd9633654bdb17... (to reproduce, shoot at a number in the game) The fix is the commit that follows : https://github.com/OlivierSohn/hamazed/commit/597619bb14974d2bbacfb284a9e276... stack version: `1.3.2, Git revision 3f675146590da4f3edf768b89355f798229da2a5 (4395 commits) x86_64 hpack-0.15.0` Could this be a compiler bug? The code is available at https://github.com/OlivierSohn/hamazed I could try to create another program that reproduces the issue more easily (without having to play the game), just let me know if you need it. Thank you, Olivier -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14521 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler