---
- branch: MAIN
  date: Wed May 23 11:02:41 UTC 2012
  files:
  - new: '1.12'
    old: '1.11'
    path: pkgsrc/lang/clang/Makefile
    pathrev: pkgsrc/lang/clang/Makefile@1.12
    type: modified
  - new: '1.7'
    old: '1.6'
    path: pkgsrc/lang/clang/PLIST
    pathrev: pkgsrc/lang/clang/PLIST@1.7
    type: modified
  - new: '1.10'
    old: '1.9'
    path: pkgsrc/lang/clang/distinfo
    pathrev: pkgsrc/lang/clang/distinfo@1.10
    type: modified
  id: 20120523T110241Z.0c7e854d502c11a0ea69a035e25351dbcd233d34
  log: |
    Changes 3.1:
    * Major New Features
      - AddressSanitizer, a fast memory error detector.
      - MachineInstr Bundles, Support to model instruction bundling / packing.
      - ARM Integrated Assembler, A full featured assembler and direct-to-object
        support for ARM.
      - Basic Block Placement Probability driven basic block placement.
    * LLVM IR and Core Improvements
      - A new type representing 16 bit half floating point values has been added.
      - IR now supports vectors of pointers, including vector GEPs.
      - Module flags have been introduced. They convey information about the module
        as a whole to LLVM subsystems. This is currently used to encode Objective C
        ABI information.
      - Loads can now have range metadata attached to them to describe the possible
        values being loaded.
      - The llvm.ctlz and llvm.cttz intrinsics now have an additional argument which
        indicates whether the behavior of the intrinsic is undefined on a zero
        input. This can be used to generate more efficient code on platforms that
        only have instructions which don't return the type size when counting bits
        in 0.
    * Optimizer Improvements
      - The loop unroll pass now is able to unroll loops with run-time trip counts.
        This feature is turned off by default, and is enabled with the
        -unroll-runtime flag.
      - A new basic-block autovectorization pass is available. Pass -vectorize to
        run this pass along with some associated post-vectorization cleanup passes.
        For more information, see the EuroLLVM 2012 slides: Autovectorization with
        LLVM.
      - Inline cost heuristics have been completely overhauled and now closely model
        constant propagation through call sites, disregard trivially dead code
        costs, and can model C++ STL iterator patterns.
  module: pkgsrc
  subject: 'CVS commit: pkgsrc/lang/clang'
  unixtime: '1337770961'
  user: adam