#8321: improve basic block layout on LLVM backend by predicting stack/heap checks -------------------------------------+------------------------------------ Reporter: rwbarton | Owner: rwbarton Type: feature request | Status: new Priority: normal | Milestone: 7.10.1 Component: Compiler (LLVM) | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Changes (by rwbarton): * owner: => rwbarton Comment: I have a proof-of-concept patch that implements this. It gave about a 1.5% speedup overall on nofib, with around 10% speedup on a couple simple stack-heavy benchmarks and a worst-case slowdown of -1.5%. I plan to revisit it after the 7.8 release. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8321#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler