[PATCH] 128-bit ABI for x86_64-w64-mingw32 incorrectly generated

[Yaron Keren]

  I'm running the test suite on Windows 7 without problems, using standard Python 2.7.6 32 bit from python.org and running the tests from regular command line, not from MSYS.

  Assuming llvm in c:\llvm was built RelWithDebInfo and Pyhton in c:\Python27, the commands to run all tests would be

    cd c:\llvm
    c:\Python27\python msvc/RelWithDebInfo/bin/llvm-lit.py test

  To run just the CodeGen tests

    cd c:\llvm
    c:\Python27\python msvc/RelWithDebInfo/bin/llvm-lit.py test\CodeGen

  Can you modify one of the tests (or create a new one) to show the problem?
  possibly mul128.ll or i128-ret.ll would do.

http://reviews.llvm.org/D1998