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  1. May 06, 2010
  2. May 05, 2010
  3. May 04, 2010
  4. May 03, 2010
  5. May 01, 2010
    • Evan Cheng's avatar
      Add a pseudo instruction REG_SEQUENCE that takes a list of registers and · 66561537
      Evan Cheng authored
      sub-register indices and outputs a single super register which is formed from
      a consecutive sequence of registers.
      
      This is used as register allocation / coalescing aid and it is useful to
      represent instructions that output register pairs / quads. For example,
      v1024, v1025 = vload <address>
      where v1024 and v1025 forms a register pair.
      
      This really should be modelled as
      v1024<3>, v1025<4> = vload <address>
      but it would violate SSA property before register allocation is done.
      
      Currently we use insert_subreg to form the super register:
      v1026 = implicit_def
      v1027 - insert_subreg v1026, v1024, 3
      v1028 = insert_subreg v1027, v1025, 4
      ...
            = use v1024
            = use v1028
      
      But this adds pseudo live interval overlap between v1024 and v1025.
      
      We can now modeled it as
      v1024, v1025 = vload <address>
      v1026 = REG_SEQUENCE v1024, 3, v1025, 4
      ...
            = use v1024
            = use v1026
      
      After coalescing, it will be
      v1026<3>, v1025<4> = vload <address>
      ...
            = use v1026<3>
            = use v1026
      
      llvm-svn: 102815
      66561537
  6. Apr 29, 2010
  7. Apr 28, 2010
  8. Apr 24, 2010
  9. Apr 20, 2010
  10. Apr 18, 2010
  11. Apr 15, 2010
  12. Apr 14, 2010
  13. Apr 13, 2010
    • Sean Callanan's avatar
      Fixed a nasty layering violation in the edis source · 814e69b1
      Sean Callanan authored
      code.  It used to #include the enhanced disassembly
      information for the targets it supported straight
      out of lib/Target/{X86,ARM,...} but now it uses a
      new interface provided by MCDisassembler, and (so
      far) implemented by X86 and ARM.
      
      Also removed hacky #define-controlled initialization
      of targets in edis.  If clients only want edis to
      initialize a limited set of targets, they can set
      --enable-targets on the configure command line.
      
      llvm-svn: 101179
      814e69b1
  14. Apr 09, 2010
  15. Apr 08, 2010
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