Re: [GHC] #11273: PowerPC NCG: Assign all STG float and double regs to PowerPC registers

16 Feb 2016

      #11273: PowerPC NCG: Assign all STG float and double regs to PowerPC registers
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        Reporter:  trommler          |                Owner:  trommler
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  7.11
  (CodeGen)                          |
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  powerpc
 Type of failure:  Runtime           |            Test Case:
  performance bug                    |
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1914
       Wiki Page:                    |
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Comment (by Ben Gamari ):

 In [changeset:"31160036c71f6f913623ea5c889ec3963d49768c/ghc" 3116003/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="31160036c71f6f913623ea5c889ec3963d49768c"
 PowerPC: Improve float register assignment.

 On Linux assign F5 and F6 and D3 through D6 to caller-saved registers.

 Fixes #11273

 Test Plan: validate on powerpc (I validated on powerpc64)

 Reviewers: bgamari, erikd, austin

 Reviewed By: erikd, austin

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D1914

 GHC Trac Issues: #11273
 }}}

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Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11273#comment:3
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