1. 30 Mar, 2015 1 commit
    • bmeurer's avatar
      [turbofan] Add backend support for float32 operations. · 8dad78cd
      bmeurer authored
      This adds the basics necessary to support float32 operations in TurboFan.
      The actual functionality required to detect safe float32 operations will
      be added based on this later. Therefore this does not affect production
      code except for some cleanup/refactoring.
      
      In detail, this patchset contains the following features:
      - Add support for float32 operations to arm, arm64, ia32 and x64
        backends.
      - Add float32 machine operators.
      - Add support for float32 constants to simplified lowering.
      - Handle float32 representation for phis in simplified lowering.
      
      In addition, contains the following (related) cleanups:
      - Fix/unify naming of backend instructions.
      - Use AVX comparisons when available.
      - Extend ArchOpcodeField to 9 bits (required for arm64).
      - Refactor some code duplication in instruction selectors.
      
      BUG=v8:3589
      LOG=n
      R=dcarney@chromium.org
      
      Review URL: https://codereview.chromium.org/1044793002
      
      Cr-Commit-Position: refs/heads/master@{#27509}
      8dad78cd
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  24. 29 Apr, 2011 1 commit
    • sgjesse@chromium.org's avatar
      ARM: Support hardfloat in SCons build and make it a build time setting · 00bc2db2
      sgjesse@chromium.org authored
      Add option armeabi to the SCons build for selecting the floating point variant to use. Also add externally defined CCFLAGS environment for all targets. Run test.py with option -S armeabi=hardfloat to test with hardfloat enabled.
      
      Make selecting hardfloat EABI variant a build-time option instead of a runtime option.
      
      Add a simple check of the EABI variant during V8 initialization to exit if the compilation was not configured correctly. The reason for this is that GCC does not provide a compile time symbol defining the EABI variant. This check is not fool-proof as it cannot check the compilation configuration used for the snapshot if any.
      
      R=karlklose@chromium.org, erik.corry@gmail.com
      
      BUG=none
      TEST=none
      
      Review URL: http://codereview.chromium.org//6905098
      
      git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7715 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
      00bc2db2
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