[llvm-commits] [llvm-gcc-4.2] r47205 - /llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp

[Chris Lattner]

nice!

On Feb 15, 2008, at 5:27 PM, Andrew Lenharth wrote:

> Author: alenhar2
> Date: Fri Feb 15 19:27:28 2008
> New Revision: 47205
>
> URL: http://llvm.org/viewvc/llvm-project?rev=47205&view=rev
> Log:
> llvm.memory.barrier for __sync_syncronize
>
> Modified:
>    llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp
>
> Modified: llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp?rev=47205&r1=47204&r2=47205&view=diff
>
> =
> =
> =
> =
> =
> =
> =
> =
> ======================================================================
> --- llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp (original)
> +++ llvm-gcc-4.2/trunk/gcc/llvm-convert.cpp Fri Feb 15 19:27:28 2008
> @@ -4293,6 +4293,18 @@
>     return true;
>   }
>
> +  case BUILT_IN_SYNCHRONIZE: {
> +    // We assume like gcc appears to, that this only applies to  
> cached memory.
> +    Value* C[5];
> +    C[0] = C[1] = C[2] = C[3] = ConstantInt::get(Type::Int1Ty, 1);
> +    C[4] = ConstantInt::get(Type::Int1Ty, 0);
> +
> +    Builder.CreateCall(Intrinsic::getDeclaration(TheModule,
> +                                                  
> Intrinsic::memory_barrier),
> +                       C, C + 5);
> +    return true;
> +  }
> +
> #if 1  // FIXME: Should handle these GCC extensions eventually.
>     case BUILT_IN_APPLY_ARGS:
>     case BUILT_IN_APPLY:
>
>
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