[LLVMdev] [llvm-commits] [dragonegg] r168787 - in /dragonegg/trunk: src/x86/Target.cpp src/x86/x86_builtins test/validator/c/copysignp.c

[Duncan Sands]

Hi Pawel, can you please pull this dragonegg patch into 3.2.  I am the
code owner for dragonegg.

Thanks a lot, Duncan.

On 28/11/12 13:44, Duncan Sands wrote:
> Author: baldrick
> Date: Wed Nov 28 06:44:50 2012
> New Revision: 168787
>
> URL: http://llvm.org/viewvc/llvm-project?rev=168787&view=rev
> Log:
> Add support for GCC's vector copysign builtins, fixing PR12664.
>
> Added:
>      dragonegg/trunk/test/validator/c/copysignp.c
> Modified:
>      dragonegg/trunk/src/x86/Target.cpp
>      dragonegg/trunk/src/x86/x86_builtins
>
> Modified: dragonegg/trunk/src/x86/Target.cpp
> URL: http://llvm.org/viewvc/llvm-project/dragonegg/trunk/src/x86/Target.cpp?rev=168787&r1=168786&r2=168787&view=diff
> ==============================================================================
> --- dragonegg/trunk/src/x86/Target.cpp (original)
> +++ dragonegg/trunk/src/x86/Target.cpp Wed Nov 28 06:44:50 2012
> @@ -165,6 +165,29 @@
>     case addpd256:
>       Result = Builder.CreateFAdd(Ops[0], Ops[1]);
>       return true;
> +  case copysignpd:
> +  case copysignpd256:
> +  case copysignps:
> +  case copysignps256: {
> +    if (Ops.size() != 2)
> +      return false;
> +    VectorType *VecTy = dyn_cast<VectorType>(Ops[0]->getType());
> +    if (Ops[1]->getType() != VecTy)
> +      return false;
> +    Type *EltTy = VecTy->getElementType();
> +    unsigned EltBitWidth = EltTy->getPrimitiveSizeInBits();
> +    Type *IntEltTy = IntegerType::get(Context, EltBitWidth);
> +    Type *IntVecTy = VectorType::get(IntEltTy, VecTy->getNumElements());
> +    APInt SignBit = APInt::getSignBit(EltBitWidth);
> +    Constant *SignMask = ConstantInt::get(IntVecTy, SignBit);
> +    Value *IntLHS = Builder.CreateBitCast(Ops[0], IntVecTy);
> +    Value *IntRHS = Builder.CreateBitCast(Ops[1], IntVecTy);
> +    Value *Sign = Builder.CreateAnd(IntRHS, SignMask);
> +    Value *Abs = Builder.CreateAnd(IntLHS, ConstantExpr::getNot(SignMask));
> +    Value *IntRes = Builder.CreateOr(Abs, Sign);
> +    Result = Builder.CreateBitCast(IntRes, VecTy);
> +    return true;
> +  }
>     case paddb:
>     case paddw:
>     case paddd:
>
> Modified: dragonegg/trunk/src/x86/x86_builtins
> URL: http://llvm.org/viewvc/llvm-project/dragonegg/trunk/src/x86/x86_builtins?rev=168787&r1=168786&r2=168787&view=diff
> ==============================================================================
> --- dragonegg/trunk/src/x86/x86_builtins (original)
> +++ dragonegg/trunk/src/x86/x86_builtins Wed Nov 28 06:44:50 2012
> @@ -120,10 +120,10 @@
>   //DEFINE_BUILTIN(comisdle),
>   //DEFINE_BUILTIN(comisdlt),
>   //DEFINE_BUILTIN(comisdneq),
> -//DEFINE_BUILTIN(copysignpd),
> -//DEFINE_BUILTIN(copysignpd256),
> -//DEFINE_BUILTIN(copysignps),
> -//DEFINE_BUILTIN(copysignps256),
> +DEFINE_BUILTIN(copysignpd),
> +DEFINE_BUILTIN(copysignpd256),
> +DEFINE_BUILTIN(copysignps),
> +DEFINE_BUILTIN(copysignps256),
>   //DEFINE_BUILTIN(crc32di),
>   //DEFINE_BUILTIN(crc32hi),
>   //DEFINE_BUILTIN(crc32qi),
>
> Added: dragonegg/trunk/test/validator/c/copysignp.c
> URL: http://llvm.org/viewvc/llvm-project/dragonegg/trunk/test/validator/c/copysignp.c?rev=168787&view=auto
> ==============================================================================
> --- dragonegg/trunk/test/validator/c/copysignp.c (added)
> +++ dragonegg/trunk/test/validator/c/copysignp.c Wed Nov 28 06:44:50 2012
> @@ -0,0 +1,7 @@
> +// RUN: %dragonegg -S %s
> +// PR12664
> +
> +typedef float v4sf __attribute__ ((vector_size (16)));
> +v4sf foo(v4sf l, v4sf r) {
> +  return __builtin_ia32_copysignps (l, r);
> +}
>
>
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