[cfe-commits] [RC1] Status of llvm and clang for Windows x64

[Bill Wendling]

Anton,

Are these changes good enough (approved) for the 2.9 release?

-bw

On Mar 18, 2011, at 4:51 AM, NAKAMURA Takumi wrote:

> Good evening, guys!
> 
> For Windows x64 aka Win64, llvm and clang can be built on RC1 but it
> would not work.
> 
> PR9483 is potentially problematic to mingw32 (x86). It does not affect
> selfhosting i686-clang for now (w/o +sse)
> 
> [LLVM]
>  - r127328 Fix Win64 va_arg.
>  - [PR8778] alloca/chkstk fix
> https://github.com/chapuni/LLVM/commit/e0187c66454f4a45172f34501d5eaa060954a8ad
>  - [PR9483] (working)
> 
> [clang]
>  - r127238 mingw-w64 should define __MINGW32__, too.
>  - r127329 declarations of __builtin_ia32_crc32**()
>  - r127652 Tweak InitHeaderSearch.cpp for mingw-w64-gcc
>  - r127654 _mm_malloc tweak
>  - r127655 Tweak __declspec and __attribute__ for mingw
> 
> 
> * How to build stage2 x86_64-clang with i686-clang selfhost stage1
> 
>  1. Get appropriate mingw-w64-gcc package. I am using 20101129.
>  2. Layout files to copy directories.
>    C:/mingw/bin-w64 <- x86_64-mingw32/bin
>    C:/mingw/libexec/gcc/x86_64-w64-mingw32 <- libexec/gcc/x86_64-w64-mingw32
>    C:/mingw/x86_64-w64-mingw32 <- x86_64-mingw32
>  3. Set $PATH
>    PATH=/c/mingw/bin-w64:/c/mingw/x86_64-w64-mingw32/bin:$PATH:/c/Python27
>  4. Run configure, make, test...
>    /path/to/configure
>      --build=x86_64-w64-mingw32
>      CC="/path/to/stage1/Release+Asserts/bin/clang -m64 -std=gnu89"
>      CXX="/path/to/stage1/Release+Asserts/bin/clang++ -m64"
>      --with-optimize-option=-O3
>      --enable-optimized --disable-docs --disable-pthreads
> 
> ...Takumi