#7192: Bug in -fregs-graph with -fnew-codegen ---------------------------------+------------------------------------------ Reporter: simonmar | Owner: benl Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: 4258 Related: | ---------------------------------+------------------------------------------
Comment(by marlowsd@…): commit 4270d7e7485b124dd153399dfe3f571253dc0d1d {{{ Author: Simon Marlow <marlo...@gmail.com> Date: Tue Nov 13 11:43:09 2012 +0000 Fix the Slow calling convention (#7192) The Slow calling convention passes the closure in R1, but we were ignoring this and hoping it would work, which it often did. However, this bug seems to have been the cause of #7192, because the graph-colouring allocator is more sensitive to having correct liveness information on jumps. compiler/cmm/CmmCallConv.hs | 6 +++--- compiler/cmm/CmmParse.y | 2 +- compiler/cmm/MkGraph.hs | 32 ++++++++------------------------ compiler/codeGen/StgCmmBind.hs | 21 +++++++++++---------- compiler/codeGen/StgCmmExpr.hs | 4 ++-- compiler/codeGen/StgCmmHeap.hs | 12 ++++-------- compiler/codeGen/StgCmmLayout.hs | 2 +- 7 files changed, 30 insertions(+), 49 deletions(-) }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7192#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler _______________________________________________ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs