[Openmp-commits] 3.8 Merge Request: r264166

[Tom Stellard via Openmp-commits]

On Tue, Apr 26, 2016 at 02:57:30PM +0000, Cownie, James H wrote:
> Note that the aim here is to allow us to enable OpenMP in Clang 3.8.1 on Windows by default, something that we failed to achieve in 3.8. The required changes are small and Windows specific, and this would bring Windows Clang/OpenMP support up to that on other platforms which seems desirable.
> 

Who is the code owner for OpenMP?

-Tom
> -- Jim
> 
> James Cownie <james.h.cownie at intel.com>
> SSG/DPD/TCAR (Technical Computing, Analyzers and Runtimes)
> Tel: +44 117 9071438
> 
> -----Original Message-----
> From: Openmp-commits [mailto:openmp-commits-bounces at lists.llvm.org] On Behalf Of Peyton, Jonathan L via Openmp-commits
> Sent: Tuesday, April 26, 2016 3:52 PM
> To: Peyton, Jonathan L <jonathan.l.peyton at intel.com>; Tom Stellard <tom at stellard.net>
> Cc: openmp-commits (openmp-commits at lists.llvm.org) <openmp-commits at lists.llvm.org>
> Subject: [Openmp-commits] 3.8 Merge Request: r264166
> 
> Can this be merged for 3.8.1?
> 
> -- Johnny
> 
> -----Original Message-----
> From: Openmp-commits [mailto:openmp-commits-bounces at lists.llvm.org] On Behalf Of Jonathan Peyton via Openmp-commits
> Sent: Wednesday, March 23, 2016 11:27 AM
> To: openmp-commits at lists.llvm.org
> Subject: [Openmp-commits] [openmp] r264166 - Fix Visual Studio builds
> 
> Author: jlpeyton
> Date: Wed Mar 23 11:27:25 2016
> New Revision: 264166
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=264166&view=rev
> Log:
> Fix Visual Studio builds
> 
> Have Visual Studio use MemoryBarrier() instead of _mm_mfence() and remove __declspec align attribute from function parameters in kmp_atomic.h
> 
> Modified:
>     openmp/trunk/runtime/src/kmp_atomic.h
>     openmp/trunk/runtime/src/kmp_csupport.c
> 
> Modified: openmp/trunk/runtime/src/kmp_atomic.h
> URL: http://llvm.org/viewvc/llvm-project/openmp/trunk/runtime/src/kmp_atomic.h?rev=264166&r1=264165&r2=264166&view=diff
> ==============================================================================
> --- openmp/trunk/runtime/src/kmp_atomic.h (original)
> +++ openmp/trunk/runtime/src/kmp_atomic.h Wed Mar 23 11:27:25 2016
> @@ -35,6 +35,13 @@
>  #if defined( __cplusplus ) && ( KMP_OS_WINDOWS )
>      // create shortcuts for c99 complex types
>  
> +    // Visual Studio cannot have function parameters that have the
> +    // align __declspec attribute, so we must remove it. (Compiler Error C2719)
> +    #if KMP_COMPILER_MSVC
> +    # undef KMP_DO_ALIGN
> +    # define KMP_DO_ALIGN(alignment) /* Nothing */
> +    #endif
> +
>      #if (_MSC_VER < 1600) && defined(_DEBUG)
>          // Workaround for the problem of _DebugHeapTag unresolved external.
>          // This problem prevented to use our static debug library for C tests
> 
> Modified: openmp/trunk/runtime/src/kmp_csupport.c
> URL: http://llvm.org/viewvc/llvm-project/openmp/trunk/runtime/src/kmp_csupport.c?rev=264166&r1=264165&r2=264166&view=diff
> ==============================================================================
> --- openmp/trunk/runtime/src/kmp_csupport.c (original)
> +++ openmp/trunk/runtime/src/kmp_csupport.c Wed Mar 23 11:27:25 2016
> @@ -654,8 +654,10 @@ __kmpc_flush(ident_t *loc)
>              if ( ! __kmp_cpuinfo.sse2 ) {
>                  // CPU cannot execute SSE2 instructions.
>              } else {
> -                #if KMP_COMPILER_ICC || KMP_COMPILER_MSVC
> +                #if KMP_COMPILER_ICC
>                  _mm_mfence();
> +                #elif KMP_COMPILER_MSVC
> +                MemoryBarrier();
>                  #else
>                  __sync_synchronize();
>                  #endif // KMP_COMPILER_ICC
> 
> 
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