#9155: O2: allocateRegsAndSpill: Cannot read from uninitialized register %vI_s154O (GHC version 7.8.2 for x86_64-unknown-linux) ---------------------------------------+---------------------------------- Reporter: slyfox | Owner: simonmar Type: bug | Status: new Priority: highest | Milestone: 7.8.3 Component: Compiler (NCG) | Version: 7.8.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: x86_64 (amd64) Type of failure: Compile-time crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: ---------------------------------------+---------------------------------- Comment (by simonmar): I have a fix for this, indeed f5879acd018494b84233f26fba828ce376d0f81d was buggy. I'll do some more testing and measurement before I push. This is a blocker for 7.8.3. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9155#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler