#4012: Compilation results are not deterministic -------------------------------------+------------------------------------- Reporter: kili | Owner: niteria Type: bug | Status: new Priority: high | Milestone: 8.6.1 Component: Compiler | Version: 6.12.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: 11362 | Blocking: 12262 Related Tickets: #10424 | Differential Rev(s): Phab:D910, | Phab:D1073, Phab:D1133, Phab:D1192, | Phab:D1268, Phab:D1360, Phab:D1373, | Phab:D1396, Phab:D1457, Phab:D1468, Wiki Page: | Phab:D1487, Phab:D1504, Phab:D1508, DeterministicBuilds | Phab:D4388 -------------------------------------+------------------------------------- Comment (by Ben Gamari <ben@…>): In [changeset:"d8e47a2ea89dbce647b06132ec10c39a2de67437/ghc" d8e47a2e/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="d8e47a2ea89dbce647b06132ec10c39a2de67437" Make cost centre symbol names deterministic. Previously, non-CAF cost centre symbol names contained a unique, leading to non-deterministic object files which, among other issues, can lead to an inconsistency causing linking failure when using cached builds sourced from multiple machines, such as with nix. Now, each cost centre symbol is annotated with the type of cost centre it is (CAF, expression annotation, declaration annotation, or HPC) and, when a single module has multiple cost centres with the same name and type, a 0-based index. Reviewers: bgamari, simonmar Reviewed By: bgamari Subscribers: niteria, simonmar, RyanGlScott, osa1, rwbarton, thomie, carter GHC Trac Issues: #4012, #12935 Differential Revision: https://phabricator.haskell.org/D4388 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4012#comment:245> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler